Fuel injector flow rates, atomization and distribution are affected and this can cause all sorts of drive-ability and performance problems. Compact and lightweight with convenient carrying handle. The results of these tests may be the deciding factor of purchase or non-purchase of an outboard. " Then, repeat the idle mixture screw adjustments from Step 4 to fine-tune the mixture. • Start motors and monitor performance for signs of malfunctioning, such as smoke, excessive vibration, or misfiring. As soon as I throttled it up the shake would go away, but it was significant at idle. Please add 0. With the smallest engine and lowest output, 2. My problem was my main engine at idle was too fast, I got tired of putting out wind anchors to slow it down. See our other pages for more Mercury, Johnson and Evinrude outboard motor parts. After the outboard motor starts, let go of the start handle quickly. Quality inflatable boats, Parsun outboard motors & accessories throughout Australia. "no computers or electronics to stop this motor and your fun on the water". Predelivery checks Test run Adjusting the engine idle speed 1. I tried the engines at elephant butte lake on the same boat,same equipment and persons. The system comprises an exhaust gas relief outlet that is located above the water when the outboard motor is operated at idle speed. Suzuki’s new 15hp and 20hp four-stroke motors may well be about to change that. On the transom, the Yamaha puts out nearly five times more vibration than the Mercury – both at cruise and at full throttle. 6HP outboard motor with innovative features and excellent engine performance. The Yamaha outboard alarm system can fail just like any other system on your outboard. I have put engine back together and though I failed to take pictures (Or I have not located them), the engine started up fantastically. These outboards are easy to install and operate, and electronic fuel injection ensures reliable starting and instant throttle response in any weather for worry-free boating. I replaced mine with Cardone axles, the whole car vibrated very badly at idle. This is a lot easier & usually cheaper then than waiting until spring rush. al,496HO MPI no modifications. Any idea? 2005 F225 15hours on it. Please add 0. Compact and lightweight with convenient carrying handle. The engine has a bore and stroke of 89 by 96 millimeters, and maximum rpm is 6,300. The BF225 is a 3. At forward idle, the Mercury’s vibration level at the driver’s seat is up to 50% lower than the Yamaha. The outboard’s quiet operation is due to the way the exhaust is managed. this rattle is the stepper motor resetting the valve to 100% opn in anticipation for the next start cycle. Bought the motor to replace a 5hp that was on my 14' jon boat. FOUR-STROKE ENGINE SIZE/PROFILE COMPARISON The following points have been kept in mind in the design of the DF90 and DF115 outboard motors. There is a great deal of talk about ethanol and gas mixtures damaging boats and causing problems. 5 to 350 horsepower, so you. Pair Yamaha 300 HP Four Stroke Outboard Motor For Sale. As soon as I throttled it up the shake would go away, but it was significant at idle. run the engine faster than idle speed. 250 HP 4-STROKE OUTBOARD MOTOR THE MOST POWERFUL AND LIGHTEST OUTBOARD MOTOR IN ITS CLASS WITH ALL THE POWER OF THE V6 FOR THE HIGH SEAS! The Yamaha F250 outboard inherits the latest state-of-the-art technologies developed by Yamaha specifically for boating. Your Evinrude boat motor can give you the ability to effectively navigate fresh or salt waters. Match the motor to the job is what I take from my experience. If throttle is advanced for starting, reduce idle speed setting as soon as outboard starts. Introduction. What could be causing vibrations in my outboard at idle Speed? at the lowest setting, I can feel sporadic vibrations from the motor through the hull, but as soon as I speed it up a touch, they disappear. This boosts low-end and midrange torque for a more powerful hole shot and increased acceleration. That motor should not be turning 7000 RPM Some motors have to have the drive shaft preloaded with spring washers, if they are not installed properly they make noise. Quick Links Solving Automotive Idle Problems Home Honda Idle Issues, Hunting Idle Idle Speech Idle Speech, Page 2 I get a TON of questions about Honda idle problems so I've put together this article to help you should you run into a rough idle on your Honda. event of theft or to quickly identifying the outboard motor type. At cold start-up it has a rough/choppy idle and seems to smell a little rich. Mercruiser Sterndrive 4. The low idle of this engine is supposed to. If in doubt. During idle speed (just in forward gear) I sometimes get a vibration (rumble) coming from the engine. A larger leak will cause noticeable engine vibration and probable misfire at idle, and severe hesitation under acceleration. 6 liters and has an upgraded air-induction system, variable idle charging and a new gearcase design. View Chuck Eichinger’s profile on LinkedIn, the world's largest professional community. I was on the water running about 3'4 throttle when all of a sudden I get this bad vibration in the motor and the speed dropped. barely vibrates on idle. chan ged prop. Thanks, Jordan. looking for suggestions? johnson 25hp 1996 stalling at idle clearwater Kevin Brown. Outboard Motors service and repair manuals. Like a surge then die, surge then die condition. Baby & children Computers & electronics Entertainment & hobby. In our tests, we have found the new Evinrude G2 outboards to be as quite as 4-stroke engines in low and mid RPM ranges. wire was broken inside insulation right at fuse holder,vibration from running engine and bouncing while trailering made problem intermitent. top rpm on a 24' pontoon boat is 4100 or so. Please keep the motor manual & packing for servicing the motor. A list of some of the most common symptoms of incorrectly gapped spark plugs is laid out below. Exterior; Auto Off Projector Beam Led Low/High Beam Daytime Running Auto-Leveling Headlamps; Black Grille; Black Power Side Mirrors w/Manual Folding; Black Side Windows Trim, Blac. • Start motors and monitor performance for signs of malfunctioning, such as smoke, excessive vibration, or misfiring. 30hp 2-stroke Outboard Motor , Find Complete Details about 30hp 2-stroke Outboard Motor,Outboard Motor from Boat Engines Supplier or Manufacturer-Suzhou Parsun Power Machine Co. Honda Marine's latest creation - the BF225 - has debuted as the most technically advanced outboard engine in the world. The outboard should be mounted high enough on the transom so that the exhaust re-lief hole will stay at least 1 in. This has never happened before and just started last week. Mercury Marine has been powering boats for over 75 years. 3 L displacement, and it is shorter than the inline 4. I recommend cleaning your carby the old fashioned way. Mercury Marine is the largest and perhaps most recognized brand of marine engines in the world. My boat is due to come out of the water soon and one of my jobs is to attempt to reduce the vibration noise caused by the outboard. Over the past 30 years, industry standards for transom height have been developed: 15" for "short shaft" engines, 20" for "long shaft" engines, and 25" for. The Honda BF15 and BF20 are 4-stroke portable marine engines. You're setting the motor's low speed, it's idle speed, and you're adjusting the mixture so that the motor performs at its optimum efficiency at both high and low speeds without sputtering or. Home Find a Dealer About Us. 1 Propeller induced cavitation. 9 Mercury, four-stroke outboard motor. Regarding rough idle in drive. outboard motor, please follow the troubleshooting procedures listed at the end of this manual. Tohatsu, Japan’s oldest outboard manufacturer, has been producing high quality, durable outboard motors since 1956. likely that the carburetor mixture and idle speed will need to be adjusted. Outboard motor designs vary depending on make and model, but all operate on similar principles. You can check for spark while the engine is running. Fuel injector flow rates, atomization and distribution are affected and this can cause all sorts of drive-ability and performance problems. These compact outboard motors take you to the fun, the fish, or whatever floats your boat – quickly and reliably. One thing I have learned, regardless of prop pitch, is that many novice helmsmen find the boat moves too fast at idle, and they come in to the dock too hot. An Idle Speed adjustment is also often provided. There is a great deal of talk about ethanol and gas mixtures damaging boats and causing problems. I am really hoping for a simple solution, and will check the plugs tommorrow, if not fouled off to the shop it goes. The teeth that were in tune with the vibration would really vibrate and it was easy to see the rpms by reading them off the scale next to the teeth. Last year I purchased a Tohatsu 9. Re: 2003 Tohatsu 18HP 4 Stroke rough idle and vibration @ WOT It idles very smooth now @ 1000 RPM. Operate at trolling speed. The Mercury 115 FourStroke has less vibration and rides smoother than the Yamaha F115B. Mercury Marine has been powering boats for over 75 years. For Sale Used Pair 2012 Yamaha F300XCA With LF300XCA 300 HP 4-Stroke 25 Inch Shaft Length Outboard Motors Motor is good running condition, the engine hours break down 1529 are below 1k rpms 411 hours below 2k rpms 308 hours below 3k rpms and finally only 28 hours below 5k rpms. 2L Offshore - 25 in Shaft Outboard Motor for sale. 5 A special procedure must be followed to adjust idle rpm. The repair guy told me this was a problem he has dealt with before. So what we now know at this point is that she has a pretty good chance of survivability on the mechanical front. Honda BF15 Portable Outboard Motor, Manual Start, 15 HP, 15" Shaft directly from a lean mixture at idle to a rich setting at full throttle. I used to borrow a tuning-fork contraption to measure rpms on an ourtboard as a kid. I have a Mercury 75-HP outboard, on a used boat I bought a few months ago. The specifications of outboards shown on this website may be changed or production discontinued without notice. But, at the Miami International Boat Show, one such motor--the all-new-from-the-skeg-up Mercury Verado--was. At idle and trolling it is not overly loudwhen opened up it has a "growl" sound. Lots of vibration and there will be plenty of surface for the miracle stuff to bond too. The most likely problems are found with the battery or electrical system, resulting in a failure to start. Chrysler Honda Johnson Evinrude Mercury Suzuki Tohatsu Yamaha. I only have the free version of vdcs and i cant save the new idle speed. Less vibration: Stratified combustion for incredibly smooth low-end performance. Engineers determined the vectors of vibrational force, i. 2 Clamping the outboard motor 1. For Sale Used Pair 2012 Yamaha F300XCA With LF300XCA 300 HP 4-Stroke 25 Inch Shaft Length Outboard Motors Motor is good running condition, the engine hours break down 1529 are below 1k rpms 411 hours below 2k rpms 308 hours below 3k rpms and finally only 28 hours below 5k rpms. View Chuck Eichinger’s profile on LinkedIn, the world's largest professional community. Even if the mounts look perfect, the tough elastomer (rubber-like) material in the engine mount work-hardens over time and ceases to isolate the boat from the engine’s vibrations. Higher durability and significantly reduced vibration mean a more pleasurable boating experience all around. Motor will be running great then goes to violently missing until you bring it back to an idle. been yrs since I,ve been in an outboard. The motor mounts connect the handle and the engine and isolates the motor from the tiller; the result is the handle grip and the boat hull experience minimal vibration across a wide range of operating ranges from idle to high speeds. If you have one of these outboard motors that needs repairs and you wish to sell it then send me a message with some information on your outboard motor along with how much $$$ your want for itif you can send me a pic that would also be great too. 4 A special procedure must be followed to check or adjust timing. With Yamaha's CDI electronic ignition system,. I only have the free version of vdcs and i cant save the new idle speed. The engine starts easily, even below freezing, and runs well. This is what I am experiencing. The specifications of outboards shown on this website may be changed or production discontinued without notice. My Suzuki DT4. chan ged prop. It has a bad vibration at idle and low RPM from 4- to 8-MPH. After warm up, open the choke valve to allow it to continue running. It is also the heaviest of all the 90hp engines we tested, at 181kg. Repair any and allow it to idle for a few minutes so. OUTBOARD WORKSHOP SERVICE MANUAL ALL MOTORS 2 TO 225 HP YEARS 1988 TO 2003 The chemical in these extinguishers packs and cakes due to the boat's vibration and pounding. Parsun’s stylish portable 15hp twin cylinder outboard provides ultra smooth, reliable, economical performance. Output far beyond its size Put amazing power in the palm of your hand. Todd has 5 jobs listed on their profile. There are things you should know about ethanol gas blends though. If the outboard motor is resold, make sure the manual. Anodized Aluminum Keys must also be installed to support motors with slotted lower mounting holes mounted with Vibra-Stop systems. At 1/3 throttle it will move my boat with two persons right along. changed injectors. He had four or five motor wiring harnesses in stock for. Thanks, Jordan. Recalls and Updates. outboard motor, please follow the troubleshooting procedures listed at the end of this manual. Suzuki 20 HP DF20AS2 Outboard Motor. Re: yamaha 250 vibration in low idle My 96 250 Shakes and rattles in gear at low RPM. But they are much heavier for the same HP, are much more complex, and are much rougher (shake/vibration) at low speed compared to a two stroke. outboard motor design to offer greater performance. this is my first pontoon. Service and repair your motor with a Yamaha outboard manual. Buy and sell almost anything on Gumtree classifieds. These compact outboard motors take you to the fun, the fish, or whatever floats your boat – quickly and reliably. All 2 hp - 130 Hp, 1 to 4 cylinder, 4 How to make your honda outboard motor idle good Sep 27, 2012 In this video I show you a quick fix that can make your honda outboard. The BFT 115hp includes dual stage induction for improved performance and Lean Burn control for better fuel economy while at cruising speeds. 900 was extremely rough. Owner Manuals offer all the information to maintain your outboard motor. event of theft or to quickly identifying the outboard motor type. What causes a rough idle? A rough idle can be caused by many different car faults. can be felt vibrating threw the boat. If the outboard motor is resold, make sure the manual. Prolong Marine Engine Life How to extend the lifespan of outboard motors and stern drives. Mercury looked closely at the mounting system on the mid-section of the outboard and calculated where the vibration comes from on the engine. Today I talked to the guy storing my boat and asked him about adding a 9. [I] bought a rebuilt 1996 Johnson 175-HP for a 1978 [unrecognized acronym]. I was told by the dealer when we test ran it back in early april it was cause it was cold and it will level out. Freshwater ﬂ ush Mercury’s patented easy accessible flush system lets you. There are two simple tests of engine compression that will separate good running outboards from worn machines. Smoother Than the Competition. I'm beginning to think my problems is just the idle being set to low. It features our Variable Trolling RPM Switch(VTS®), that allows for precision adjustment of trolling speeds from 750 to 1050 RPM in 50-RPM increments. I really like some aspects of the engine and the jury is still out on others. NOW, you can do the same with the low speed needle… when you slowly close the needle, the motor will actually idle up a bit when you get to the point of being to lean. The Parsun 15hp motor short and long shaft Outboard demonstrates Parsun’s excellence in engineering. Recalls and Updates. Finally, turn the screw back to the midpoint. Online Outboards / Cumberland Watersports / Tohatsu motor company Steve H. In this article, we will show you some possible and common signs of a faulty idle air control valve. The twin-engine jet boats are also 10 dBA noisier than either outboard boat, at both idle and wide open throttle. Tohatsu outboards were originally developed for commercial Japanese fishermen who needed a motor that could run for days on end, no matter what the weather. However would cycle from idle to high idle back to idle. runs somewhat smooth at 1900 rpm. net makes it easy for you to find the Johnson outboard parts you need. It wants to idle below 500-RPM, and, of course, stalls out as the motor wants to surge every second or two at that speed then quits. Worst motor I've ever owned, and it still hasn't seen even 70 hours. There is definitely a shake to the motor at idle and I get resonance from the motor in the mid 3000rpm range, where the sound echos through the ski locker. can be felt vibrating threw the boat. Safe operation. A V6 engine is a V engine with six cylinders mounted on the crankshaft in two banks of three cylinders, usually set at a 60 or 90 degree angle to each other. Check the engine idle speed after the the idle speed tends to rise by the reduction engine has been. The trim setting of an outboard-powered boat determines how quickly it can get up to speed and how fast and comfortable the boat will cruise. The Mercury 75-HP outboard started to vibrate at idle and at higher speeds; there is a very noticeable miss when at idle, as well. #2 is the battery's connections. The most likely problems are found with the battery or electrical system, resulting in a failure to start. vibrates a lot between 21-3900 rpm's. 4HP Superior Engine Outboard Motor Inflatable Fishing Boat(4-stroke 1. We work with the top suppliers in the industry. Together with specially designed, rubber motor mounts, it helps to lessen the amount of vibration that is transmitted to the boat. It vibrates at lower rpm's. Or the vibration could be coming from the engine. It is equipped with a TCI ignition for easy starting along with fan shifting with 360 degree steering. Although relatively complex compared to their forebears, modern outboard motors are more reliable than ever before, and a well-looked after engine will give reliable service. Should you elect to perform repairs yourself, use caution, common sense, and observe safety procedures in the vicinity of flammable liquids, around. They have compact dimensions, easily transported and mounted on the stern of the boat. Nissan Tohatsu Outboard Forum Go to Sub-Forums. Product names, coloring and graphics may also differ. WARNING Do not tilt up or down outboard motor when swimmer(s) or passenger is near to prevent them from being caught between outboard motor body and clamp bracket in case the outboard motor body falls. If throttle is advanced for starting, reduce idle speed setting as soon as outboard starts. Safe operation. The vibration is coming from an unbalance in the prop which may have been damaged or improperly balanced. The five pitch is what comes with the outboard and it may be the problem I took it off and ran the motor made a big difference with the vibration I was feeling. 6 liters and has an upgraded air-induction system, variable idle charging and a new gearcase design. " Then, repeat the idle mixture screw adjustments from Step 4 to fine-tune the mixture. Enjoy quick acceleration to go with exhilarating speed. EMF14010 CLAMPING THE OUTBOARD MOTOR 1) Place the outboard on the transom so that it is positioned as close to the center as possible. It's worry-free boating at its best. and 87# gasoline. Add extra pre-mix oil to the fuel. Baby & children Computers & electronics Entertainment & hobby. "It's a four hundred that's going to deliver perfect sound with no vibration whatsoever, has the best power to weight ratio by far than any engine of this size (a four-hundred horsepower that weighs sixty percent of a competitive engine), is a lighter engine that is better for fuel economy, and gives all the state-of-the-art prop to helm. The trim angle of the outboard/stern drive has a distinct effect on the planing angle of the boat, which, in turn, significantly alters top speed and handling. A larger silencer, a very low 620 rpm idle speed and stiffer crankshaft, crankcase, engine holder and cowling all work together to reduce engine noise and vibration. Re: 5 hp Mercury Outboard problem From the symptoms you describe I would ceratinly be looking at the carb and the fuel system in general. These compact outboard motors take you to the fun, the fish, or whatever floats your boat – quickly and reliably. Your Evinrude boat motor can give you the ability to effectively navigate fresh or salt waters. The engine ran like a top until a few weeks ago. I tried the engines at elephant butte lake on the same boat,same equipment and persons. If the vibration is still there, the problem is in the engine; if not, the prop is the problem. They're quicker, stronger, smarter and lighter—with class-leading 4. DO NOT run a cold engine any faster than necessary to keep it from stalling. Free delivery and returns on all eligible orders. Find your engine to check out the exploded diagrams that will help find the parts you need. used to run so quiet you didn't know it was even running. Issuu is a digital publishing platform that makes it simple to publish magazines, catalogs, newspapers, books, and more online. Troubleshooting the alarm system includes making sure the horn associated with the alarm works, making sure the warning light comes on and the horn sounds when the oil level drops below acceptable levels and ensuring the warning sounds if the engine overheats. There is an easy way to control this with motors that have transmissions: shifting into neutral, and forward for bursts of power, will keep speeds at manageable levels. Idle speed is 1200~1300rpm (the fuel consumption will be reduced) and more quiet at idle speed by use such new system. Operate at trolling speed. It ticks over smoothly but when I rapidly open the throttle it usually stalls. Sportsmen used these gear driven outboards to haul themselves and their gear long before shallow water boat motors came into the market, and the majority of them still do. barely vibrates on idle. Which brands do you guys like? Obviously Honda and Yamaha are good. That builds maximum horsepower without wasting fuel. The result?. 3Provide boaters with an outboard that delivers maximum power and performance. I now have a 2007 (272k). I would like to hear what your experience is regarding vibration from your outboard engine. The motor is super quiet and it does not vibrate at all. The natural 2-stroke advantage combined with our super-natural fuel-injection and combustion system means that you will gain up to 23% more torque than a comparable 4-stroke outboard engine. MY Mech said it is the motor mounts. is the vibration normal when u put it in gear at an idle. It even offers sub-idle trolling up to 150 RPM below normal idle speed. EST on Thursday, February 15th at the Miami International Boat Show, Mercury unveiled its new 3. At idle and trolling it is not overly loudwhen opened up it has a "growl" sound. The biggest outboard the Japanese manufacturer offers, the BF250, is a 60-degree V-6 that displaces 3. Rarely does an outboard motor come along that stands the marine industry on its ear. Which brands do you guys like? Obviously Honda and Yamaha are good. Should you notice these issues before leaving your dock, a wise decision would be to stay tied up at the dock until the problem can be sorted out. I have a 25 hp mercury outboard motor that wont idle, runs ok a high speeds - Answered by a verified Marine Mechanic I am getting a vibration in my boat when the. your outboard to a dealer for an expensive valve-lash adjustment. Every engine has been adjusted to average mixture settings, which will most likely allow the engine to start and run in most locations. 4L 175 / 200 / 225hp V-6 outboards At 10:15 a. My motor at idle, is so quiet you can barely tell it's running. The teeth that were in tune with the vibration would really vibrate and it was easy to see the rpms by reading them off the scale next to the teeth. An Idle Speed adjustment is also often provided. The F150 satisfies the needs of anglers looking for quiet, fuel-efficient power for mid-sized boats. 900 was extremely rough. this rattle is the stepper motor resetting the valve to 100% opn in anticipation for the next start cycle. You can now buy anything from a Direct-Injection two-stroke to a four-stroke or electric outboard, with outputs from two to 557hp and weights from a few kilos to half a metric tonne. I would recommend the Tohatsu 4-Stroke 6HP outboard motor… Read Full Review. Hi I have a 2002 Yamaha f-115 four stroke outboard motor and I just had a mechanic adjust the valves on it and also raise the idle speed up to Yamaha specs. Check the routing of the tan temperature wires, an example of a bad location is shown below. Quieter at idle speed. this rattle is the stepper motor resetting the valve to 100% opn in anticipation for the next start cycle. Honda BF15 Portable Outboard Motor, Electric Start, 15 HP, 20" Shaft from a lean mixture at idle to a rich setting at full throttle. [I] bought a rebuilt 1996 Johnson 175-HP for a 1978 [unrecognized acronym]. An Idle Speed adjustment is also often provided. As soon as I throttled it up the shake would go away, but it was significant at idle. Find the cost of a new lower unit for the same motor. 55 Qt of 10W30 - 10W40 Gas Tank Capacity. Disassemble and inspect motors to locate defective parts, using mechanic's hand tools and gauges. When your outboard starts right up, keeps running with throttle applied in neutral, but shuts down the moment you come back to idle speed in neutral, the issue is likely to be a sticky or broken AIS (automatic idle speed) valve. Evinrude outboard engines are lightweight and feature quiet operation. 3 Measure using an accurate service tachometer with engine at normal operating temperature. Outboard motors require that you start them up and hold the gas until they can idle on their own. Ill see if I can find a new prop in the morning. Buy and sell almost anything on Gumtree classifieds. They can range from 2. Buy iFJF 18-7750-1 Carburetor Kit For Sierra Mercury Mariner Outboard Motor Replaces 1395-8236354（pack of 3）: Rebuild Kits - Amazon. Mercury’s outboard motors range from 2. this was taken out of service and sat for a long time. in an outboard motor having a drive unit with an internal combustion engine mounted thereon and an underwater propeller drive unit depending at the lower end thereof, an engine exhaust system comprising an exhaust pipe extending downwardly from the engine in said drive unit, exhaust discharge means communicating with the lower end of said pipe to discharge the exhaust therefrom, a water. simultaneously moving the outboard’s center of gravity forward. Springs held the motor against the damper at idle to help keep it from shaking itself to death. N1 Icing Vibration Range _____% Use Anti-Ice when temperature is below ___°C with visible moisture On the ground with noted or suspected ice build-ups, momentarily advance engines to ___% N1 every __ minutes. If there is a Honda outboard motor engine oil change should be dealership nearby, take the motor performed after running the engine immediately to the dealer. Easily share your publications and get them in front of Issuu’s. So, the 1964 to 1966 motors idled a bit rough due to the excessive vibration, so the dampeners and slight carburetor adjustments improved idling from 1967 an on. Looking to get a 2-5 horsepower 4 stroke outboard for a 16' square stern aluminum canoe. T30abws 30hp 2-stroke Short Shaft Outboad Engine Boat Motor Outboard Motor , Find Complete Details about T30abws 30hp 2-stroke Short Shaft Outboad Engine Boat Motor Outboard Motor,Outboard Motor,2-stroke Boat Motors,30hp Boat Motor from Boat Engines Supplier or Manufacturer-Suzhou Parsun Power Machine Co. I would recommend the Tohatsu 4-Stroke 6HP outboard motor… Read Full Review. What could be causing vibrations in my outboard at idle Speed? at the lowest setting, I can feel sporadic vibrations from the motor through the hull, but as soon as I speed it up a touch, they disappear. Compact and lightweight with convenient carrying handle. I will guess that with the non flexible linkage of the previous series had problems that this anti-vibration and flexible carburetor idle system solved. The biggest outboard the Japanese manufacturer offers, the BF250, is a 60-degree V-6 that displaces 3. Vibration reduction system Start in gear protection Twist grip throttle control Easy shifting Safety Lanyard Ultra low emissions Gear Position - F - N - R Gear Ratio - 2. but you likely won't notice it because at each higher rpm setting, the engine's firing impulses are closer together and so become less noticeable. Every outboard motor maker has had issues in the past and yet none of them are producing a bad motor! The minute differences in performance are so minimal that your average boat operator will never know the difference due to not running the "perfect prop" or knowing how to handle/operate their own boat to "peak performance". 6hp 4-stroke Outboad Engine Boat Motor Outboard Motor , Find Complete Details about F2. runs somewhat smooth at 1900 rpm. Please keep the motor manual & packing for servicing the motor. Is this common for this motor? jimh: posted 10-29-2007 07:12 PM ET (US). Four Stroke outboard motors have been becoming the mainstay. Troubleshooting Battery Charging Issues Regardless if the charging issue is overcharging or not charging at all, the #1 cause of all charging issues is the battery often due to improper style and/or charging neglect. 6 HP 4-STROKE YAMAHA OUTBOARD MOTOR Enjoy this popular easy to carry model! Their compact size, large carrying handles and integrated fuel tank make these outboards easily transportable. Evinrude outboard engines are lightweight and feature quiet operation. In competitive angling. Parsun 20hp Outboard Motor Long Shaft 4 Stroke Outboard MODEL F20BML The Parsun 20hp outboard motor 4 stroke long shaft outboard delivers performance at the best value anywhere. At forward idle, the Mercury's vibration level at the driver’s seat is up to 50% lower than the competitive outboard. 6L 250hp / 300hp. The repair guy told me this was a problem he has dealt with before. The vibration is bad enough that it vibrates the whole boat at speed and if holding it the engine tiller handle will numb your hand after a while becuase of the vibration. Mercury 150 FourStroke Captain's Report. It ticks over smoothly but when I rapidly open the throttle it usually stalls. Always shift or engage gears at lowest possible engine idle speed, ideally less than 650 RPM. Motor has been Fully Serviced : new water pump, gear lube, lower unit pressure tested all good, zincs, spark plugs, and new oil filter, and fuel filter. outboard motor, please follow the troubleshooting procedures listed at the end of this manual. 2 Vessel induced cavitation i. The only way top keep it running, after some starting fluid was at full fast idle in neutral. » Yamaha 15FMHS – L Outboards – East Coast Yamaha Marine | EAST COAST YAMAHA MARINE- Offering over 50 Years of combined Yamaha Marine experience. Brand new motor 30 hours, fuel pump failure. By understanding how to troubleshoot the motor, a person can also understand what kinds of things they should avoid doing that may have damaged the motor in the first place. cavitation caused by appendages, hull shape and application. Authorised YAMAHA Marine Maintenance, Servicing and suppliers of YAMAHA GENUINE PARTS. While being incredibly light weight and compact. 6 offers high fuel efficiency and ultra-low idle, and is more quiet with Innovative CDI system for a smoother ride. Higher durability and significantly reduced vibration mean a more pleasurable boating experience all around. An Idle Speed adjustment is also often provided. "Building on this solid foundation, Mercury engineered the new performance-tuned 150 Pro XS to be the quickest, lightest and most advanced high-output outboard in its class. This unit starts well idles smooth has all the power that a person would ever need on a 12 ft.