Yamaha 4hp 4 stroke outboard problems

Jul 26, 2009 · 1) Fuel Filter - I cleaned the fuel filter by unscrewing it and blowing out the bits of dirt in the container and on the filter. The boat does not come off of plane it just seems to bog down and makes the boat jerk like you are hitting the brakes in a car. The engine weighs in at 487-pounds. Weak or No Spark at Spark Plugs. I do have a separate 10 micron water separator filter and I also have run a high end ethanol treatment as well as a fuel stabilizer. On a heavier fiberglass bay boat this will drop a hair, but just Turn off the main electrical cutoff switch. Mar 4, 2012 · From what you say it may be that there is a failed oil seal on the main bearings. Shop the best selection of 613 outboard motors & inboard. Motor runs fine full blast, but shakes the crap out of you and back fires in low rpms. IMO, introducing two Visit site. Re: Yamaha 20hp 4-stroke Reviews. Jul 19, 2009. For that same money you could get a Saildrive 5HP. My motor run great from idle to wot for about 10-15 minutes, then starts cutting out. The compression ratio is 10. The engine will show an air intake passage fault (#37). Jun 2, 2023 · Mercury outboard engines are renowned for their reliability, durability, and performance. I have a set of 200 HP 4 stroke Yamaha's, F200XB & LF200XB (2014's) My problem is with the LF200XB. After it starts it will run for a few minutes then quit. Even spliced in an electric fuel pump (rated at 170l/min) and by-passed the mechanical pump but the problem is still there. After doing some analysis I found that cleaning the temp sensor and thermostat resolved the issue. Jun 27, 2017 · Boat Motor Problems Likely to Occur After Yamaha Warranty Has Expired. 5 Suzuki 4 stroke. Jul 25, 2015 · I have read articles on major corrosion problems with the 2000-2004, 225 hp 4-stroke Yamas. Starts and idles great. Ethanol gas was introduced in 2006. 78” x 3. So, my final verdict is to go for the engine if you want a good 4-stroke Jul 14, 2020 · Tweet. A small allen key wiggled around up the outlet often cures it, although you need to be careful as the water coming out can be very hot. Model F115TLRB. The Yamaha 4HP Outboard Motor is a lightweight and portable engine that’s ideal for use on small boats and watercraft. (Many places to get it done, injectorman. well, it IS normal - for a pre-2006 F225 operated in saltwater. Solution: Ensure that you’re mixing the proper ratio of gasoline and 2-stroke oil according to the manufacturer’s guidelines. I have a 2004 115 Hp Yamaha 4 Stroke. Jul 23, 2022 · The Yamaha 250 Outboard is a steal in terms of 4-stroke outboards. As long as you’re sure that there is nothing clogged in the water inlet supply, the issue with the outboard not pumping water can be isolated to a broken impeller or a clogged outlet. The motor offers light, compact power for your May 27, 2015 · 05-27-2015, 05:38 PM. They have the same 1596 cc block, but with a smaller alternator and lower compression ratio to bring down the power. 95 shipping available. Feb 24, 2019 · In this video, we take a look inside a suspected bad gearcase in a Yamaha YMLHT 4HP 4-stroke long shaft outboard to diagnose issues with shifting and propell Aug 12, 2021 · 8,934. My 2014 25hp 4 stroke bogs down at 1/2-3/4 throttle. Prefix Model Code *. Yamaha’s F25 is still the lightest 25-horsepower outboard on the water—two stroke or four stroke. Re: Problems with my 225 4-stroke Yamaha. Check the engine oil levels next. Yamaha's new F90 and F75 are basically the exact outboard as the F100 was. Apr 9, 2010. Then, check the vapor separator needle valve for bends or signs of wear. May 26, 2016 · If your shift selector is on the tiller handle, check the cable that runs along side of the throttle cable. May 19, 2019 · 115 HP 4 Stroke EFI. I now own 2 Yamaha outboards; a 3 hp 2 stroke, and now an 8 hp 4 stroke. I often switch back and forth using both of them on a Solo Skiff. The primary (cup) fuel filter and secondary (in-line) fuel filter should both be inspected regularly and replaced after approximately every 100 hours of use. This seems to have been the most significant part of the fix. on two stroke a compression test is quick easy and painless. 5 outboard motor is one of their most costly outboard which will cost you $560. TOP SELLING ITEMS FOR YOUR 2004 Outboard 4hp [ F4MSHC ] View parts diagrams and shop online for F4MSHC : 2004 Outboard 4hp. Offering discount prices on OEM parts for over 50 years. Its portable design and class-leading power-to-weight mean 25 horses can boldly go where they’ve never gone before. A blocked fuel filter can slow or reduce the amount of fuel reaching the engine. hello<br /> check the fuel pressre at the pressure rail while the problem is there. If it is the 2 stroke 4HP Yamaha this is a common fault, After a year or 3 the gear shift which is plastic grows/binds in the engine base. Also, when changing oil only fill to the half to 3/4 mark on the dipstick. This has probably been beat to death, but since the motors are new to me I would like to know from some experienced owners or mechanics on Step 1: Remove the thermostat from the motor. 9 - 4 stroke idle problems. 1. Step 2: Put the thermostat in a bowl and immerse it in boiling water. multiple back fires in intake up to around 3000-4000rpm. I have a 9. 4 liter V6. After the boat is cruising on plane and brought abruptly to idle, the motor will die. Re: Yamaha 4-stroke, fuel in oil. 902. Ensure that the outboard motor is in an upright and level position. 5 hp 4 stoke. 3. The basic 4HP four-stroke with internal tank is 680. #2. Dec 3, 2016 · 12-04-2016, 11:43 AM. Engine hot, all plugs removed, throttle wide open, starter motor operated until pressure stops rising. 09-18-2012, 09:45 AM. My diagnostics and what has been done. Hi everyone, I have a Yamaha 25 HP 4 stroke (F25MSHA) #152615 year bought 2002. Ethanol gasoline: Only use premium low-ethanol gasoline for your Yamaha outboard motor. Boats. See full list on partsvu. crankcase bolts 7. 23 Feb 2007. Oct 30, 2018 · Temp sensor and thermostat issue. Sep 13, 2009 · Sep 13, 2009. Then it will not start until after a cool down period of at least 15 minutes (time can vary). Re: Yamaha 100 Four Stroke- Good/Bad? The F100 is no longer available in 2003. It is lightweight and enduring. Mar 29, 2021 · Carburettor. The motor was running fine on the waterOn the return to dock, the motor would not disengage from forward when placed i Mar 29, 2021 · Small four-stroke outboard engines are pretty simple. I Have a 2005 Yamaha 150 four stroke outboard on a 21' maycraft. I prefer doing a couple extra steps (smaller increments). also test the fuel system vacum as per the yamaha tech servive manual (not engine service manual. Starter Does Not Engage Or Turn Over: The first common trouble most consumers mention with Yamaha 115 4 stroke engine is the starter failure issue. Motor is a F25leha. Compare specifications such as warranty, engine type, engine oil capacity, dry Tried the same fixes as you, including a thorough internal cleanout, but no real improvement. One of the most common ways your Yamaha outboard motor will break down is a fuel system failure. I understand that single cylinder outboards will naturally not be as smooth running as their 2 cylinder and up counterparts. On a 68 degree F day. The throttle body has a rubber pressed in seating, when turning the gas on and off the hole in the steel valve stem rubs the now gooey rubber in the pressed in fitting. When we disconnect the shift position switch, the engine will act up and fault code #37 will show. 5 horsepower. As the thermostat heats up, it should open. I have a 2005 Yamaha f225 4-stroke that runs rough between 900 and 1,400 RPM in gear. Prof Thomas said: Here's a good 1, help ! Went to Change gas tanks, motor IMMEDIATLY won't start, unless in neutral with throttle advanced. It’s positioned inside the engine bracket Jul 13, 2008 · Jul 13, 2008. Why trying to warm up the engines for their second oil change, the LF engine did not pass water thru the "pee hole". After a few stalling cycles the motor Nov 2, 2018 · Many 4 stroke outboards increase oil level in cold weather due to condensation from not getting warm enough. Richmond, Virginia 23231. 79”. Because recreational boaters will typically use these engines for less than 100 hours per year, it is likely that the engine will fail after Disconnect the fuel line from the engine side of the bulb. On first trip out since about august, I noticed boat was not reaching full rpms or speed. The F4 also features a built-in fuel tank with the option of switchable access to an additional external tank for an amazing extended range. Nov 14, 2019 · To me it sounds like fuel starvation at full power. A few pulls will charge the crankcase with enough fuel/oil mix to seal the bearings seals and the engine will start normally. It is worth doing otherwise, eventually, it will F130. Using Outboards to Remove Microplastics from the Ocean - Power & Motoryacht 5 days ago · PRODUCT DESCRIPTION. Jan 26, 2017 · 01-26-2017, 06:31 PM. 00, by the way. Troubleshooting Outboard Fuel Filters. Installation of this kit will allow an unregulated charge to the battery. When the ECU open the ISC, the vacuum through hoses A pressurized oil delivery system that incorporates a compact and durable oil pump to keep all of the moving parts of their Overhead Valve systems lubricated and running smoothly for maximum reliability. net. Yamaha 115 4 stroke users often complain about starter issues like it might not engaging properly or failing to turn over. Mar 18, 2003 · 977. It is also commonly used in Mercury O Jul 18, 2009 · Jul 24, 2005. 2 miles to the gallon. Enter your Primary ID to view your owner manual. Step 3. Yamaha 4hp Outboard | F4SMHA $1,735. 7 ft lbs. 07-11-2019, 12:06 PM. By acting up I mean the RPM becomes unstable and the IAC % drops Owner's Manuals. com Mar 15, 2024 · Peeing outboard pee ve coolingMercury system oil outboard injection fresh flush water efi fine hose troubleshooting valve engine fuel marine motor flushes tween but Outboard engines, clean cooling systemQ&a: common problems with mercury 90 hp 4 stroke outboard engines. 00 $1,475. When you pull the starter rope, it turns the pulley. Please forgive any protocol infractions. The F4 also features a built-in fuel tank with the option of switchable access to an additional external tank for amazing extended range. replaced both fuel pumps, hi & low pressure. 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. I always flush after use and turn gas valve into off position to allow gas in carb to burn out so no gas left in carb. Yamaha's 139-cc 4-hp portable outboard mirrors their OHV F6, with a couple of fewer horses. Shaft Length *. Apr 9, 2010 · 11. Ross Motorsports. Sep 24, 2017 · Little less than a year ago, I purchased this new Yam 4/4 and used it to upgrade from 6 year old 2. Tach goes crazy up and down and engine really hesitates, and dies. I have a 2014 9. The 4-stroke outboard engines, in particular, provide boaters with dependable power, smooth operation, and excellent fuel efficiency. 5-4 HP and Honda 2-5 HP) I'm curious if you could relate your expieriences as far as vibration goes. I have cleaned the fuel filter, the carberator 3 times very throughly, spark plus are good, and the fuel pump seems to be functioning properly. Wipe the dipstick with a cloth, reinsert it fully, then remove it and check the oil mark on the side of the dipstick. The engine seems to cut out like it is starving for fuel after running at 3/4 to full speed for a few minutes. Some older outboard models might not show the leading zeroes, but they must be included. Direct replacement to your original unit. The motor runs perfectly at idle and all RPM ranges while on plane. Aug 14, 2010 · Re: Yamaha 90HP 4 Stroke - Intermittent Starting Problem Re: Yamaha 90HP 4 Stroke - Intermittent Starting Problem Thanks for the reply and advice. 5HP. It starts up fine, 2nd or 3rd pull. With a 4 horsepower engine, this outboard Jan 26, 2016 · 2005 F225 problem. 09-13-2020, 01:10 PM. This can lead to poor engine performance or failure to start. A quick fix was to add the shift selector handle to the side of the engine for positive shifting. I suspect that you will find the compression pressure to be higher. 09-11-2018, 07:31 PM. Possible Cause: Damaged or leaking gaskets. so, a 'newbie' to this site. 2024 Yamaha Outboards In-Line 4 V MAX SHO 150. Built by Yamaha, a world-renowned brand known for producing high-quality marine engines, this outboard motor is designed to deliver reliable and efficient performance on the water. The outboard has only had a service 15hrs ago & the impellor & housing was replaced, straight after service it was fine & no alarm was coming up. It will do it two to three times in a few seconds May 20, 2017 · 2004 25HP Yamaha four stroke outboard model number - F25ELHC Motor is mounted on a 16' 9" 2004 Smoker Craft - Motor has appr. Regards. e. Model: F25MLHF. Light, compact and incredibly versatile the new F130 has set new benchmarks for weight and performance in the mid-range horsepower market and carries on Yamaha’s proud heritage of exceptional saltwater 130 horsepower engines. 2 ft lbs first torque and 16 ft lbs second. Will not start unless I use the priming bulb. #1. Yamaha 2. It sort of sounds like when you slow shift Into gear and it grinds but it fully engaged Sep 29, 2017 · 9. And then have the injectors rebuilt. Max McHugh of Marine Matters explains how to fix the most common problems, from gummed-up carburettors May 20, 2022 · I recently replaced my Yamaha 2010 90hp 4 stroke outboard's timing belt. It features the same ergonomic, easy-grip starter handle with a built-in decompression device for effortless starts. Sep 12, 2004. 2011 25 hp yamaha 4 stroke approx. It costs about $20-25 per injector and they will be good as new. 25 Hp Mercury Outboard Motor Parts Diagram | Reviewmotors. 7 MPH. Replace the Pump Impeller. Dies when put in neutral to shift into gear. 8 liters and has a bore and stroke of 3. 9 EXHY. This portable series four-stroke Yamaha outboard ranges in horsepower: 6HP, 4HP, and 2. you will also wish to record the data on a laptop at high speed to see if the knock sensor or anyother Mar 8, 2022 · today we dive in to find the culprit of a outboard running really crappy, and the outcome really surprised me personally but was super simple and maybe simpl Nov 11, 2013 · Nov 11, 2013. The motor ran perfect until this year. Feb 23, 2007 · As far as the Tohatsu range goes, I dont think there is a 4 with all the bits you need as standard - to make one up with an external tank option and charging loop it would be 850. Blue Yellow. NOTE: Some Yamaha outboards have two thermostats, in which case you would remove them both. yet the compression was good and the leakage rate above 70%. Let go of the primer bulb. Good reliability and durability protect your outboard fuel pump. Jan 27, 2008 · Jan 27, 2008. Checked fuel lines, Mechanic reccomended replacing fuel pump. Yamaha Outboard Parts. Aug 21, 2023 · 2. Jun 26, 2008 · chucklesR said: I found the problem with my 2004 Yahama 2. All serial number digits are required. 0 to 1. #8. Sep 1, 2021 · Fuel System Issues. Mar 5, 2022 · In this video we take a close look at the Yamaha cold start enrichment valve used on carbureted Four stroke outboards. I've changed the line from the tank to the o/b. Jun 3, 2010 · UK and NW Caribbean, Visit site. Mar 4, 2011. Jul 20, 2019 · Jul 24, 2016. May 1, 2024 · Comparisons: Compare up to three Yamaha Outboard motors side-by-side to easily find the best motor for your needs. He is out of ideas and unable to get in contact with Yamaha techs. The Hangkai 12V ET45 Electric outboard motor has a price of $105 which is a grab if you own a smaller boat. Oct 22, 2023 · Q&a: yamaha outboard shift rod replacement & mercury 25 hp 2-stroke 25 hp mercury outboard motor parts diagram Outboard 25hp midsection evinrude. Messages. Built to strict quality control standards. 9hp, F15hp, F20hp and F25hp. Replacing Yamaha Outboard Water Pump Impeller 25 HP PORTABLE. I just bought a new sea fox. At a cruising speed in the upper 20's, while turning 4500 rpm, the F90 on our test platform was burning less than five gallons per hour and the boat was making approximately 6. 14-foot aluminum fishing boats. After a few hours of *****ing the motor just stalls. Rod bolts 8. com is one). I used it first time last year and after running perfectly it suddenly wouldn't start (on a morning where it had been running fine). Mechanic cleaned carb three times, good compression, replaced plugs,fuel filter,fuel tank,fuel line,checked timing,and replaced stator. Hello everyone, first time posting here. Feb 28, 2011 · 27. Within 30-60 seconds of accelerating to medium/full throttle, the motor dies over a few seconds. I cannot tell you how many 4 strokes have passed a compression test with leaking heads,leaking valves and stuck rings due to carbon. Thank you. Replace the starter on top of the powerhead. Had no problems at all until December. This trip could not get over 3800 rpms or 30knots. I use the motor for walleye fishing *****ing at 1. Then, stick your finger on the hose barb. Southeastern Marine. Step 5. This outboard was designed with Australian boaters in mind and delivers awesome acceleration and mid-range Your outboard’s power trim and tilt unit changes the outboard’s thrust angle during operation for maximum performance of both your outboard and your boat. This allows a pressure leak from the crankcase which is the scavenge chamber for the input fuel charge. If oil levels are below the "L" mark Oct 11, 2021 · Recruit. I also changed the tank and lines Mar 1, 2011 · Then change the filters on the motor (filter in bowl, filter on top of VST, and filter on pump in VST). We stock motors from 2-450HP. Fuel Filter 6D8-WS24A-00 For Yamaha Engine Outboard 40-115HP 4-Stroke. Thread the retaining bolts through the starter and into the powerhead. They deliver quick starts, high performance and incredible efficiency for aluminum fishing boats, pontoons and fiberglass boats. Jun 23, 2014 · Help needed w/ 8hp / 4 stroke. I also have a 4 stroke yamaha that the cable started fraying inside of the protective casing giving me symptoms similar to yours. Moreover, it is not laden with many common problems. First, been on this forum for all of 8 minutes now. If the engine cooling system is not properly controlling May 30, 2023 · Possible Cause: Incorrect fuel/oil mixture. The Hangkai Four Stroke 6. Need some advice here. Sep 13, 2020 · Tweet. Solution: Inspect the engine’s gaskets and seals for signs of damage or wear. 10 hrs on engine. Jun 7, 2013 · Aggravating 4 month problem on a 25hp -4stroke. As one might expect, this 90 horsepower four-stroke outboard is thoroughly stingy. 450 hours Has been a great running motor for many years with nothing but preventative maintenance things completed each year as required. I have a brand new Yamaha 4hp 4 stroke outboard, but cannot run it at full throttle. In terms of expenses, the engine is preferable. Davy_S said: The easiest way to check the fuel pump (if you have a plastic fuel tank) screw the breather screw down on the filler cap, then run the engine, If the fuel pump is good it will suck the sides of the tank in! when you release the breather you will hear the air being drawn in. Kits are available for the following manual-start engines: 2 Stroke: 8hp, 9. Your engine is being eaten away by the corrosive effects of the exhaust. You will need to remove the power head (buy the gasket first), remove the gearshift and sand it down until it stops binding. motor shakes bad at idle but smooths out around 1500 rpm. The most powerful engine in this model group, the F200 displaces 2. I run the boat year round and haven’t sat for more than a few weeks. Re: Yamaha 4stroke - idle speed control ???? Trying to figure what role vacuum hose #7 plays. That’s over 100-pounds less than the other 200 hp Yamaha offering, which is based on their 3. I would appreciate any comments you many have on these 2004, 200 hp engines. #4. $14,999. #3. If a I put it into gear at low RPM's (500-700) it has a grinding noise. 2) Pilot Screw - Then I removed the pilot screw, cleaned it off, sprayed carb cleaner into the hole and replaced it. It has a Yamaha F150XB engine (150hp 4 stroke). co Mercury 25 hp xd: q&a on 2-stroke problems Motor mercury 25 hp 2 tiempos sea pro – mundo nautico Jun 12, 2023 · 1. Need to have an. Serial Number *. The Yamaha 50hp Midrange four strokes are the go-to outboards for family, fishing and fun. When you remove it from the boiling water, allow it to cool and it should close again. Light and powerful, they sport 1-liter displacement, single-overhead-camshaft designs and electronic fuel injection. Move this wire around from the opening by taping it to another part or wedging it between components. On top of that, cutting-edge technology provides the best performance. Nov 4, 2022 · It is mostly recommended that people clean the engine frequently to avoid this problem. I am the new owner of a pair of 225 yamaha 4 strokes 2003 models with 425 hours and have read a few threads with horror stories of corrosion problems inside the motors and exhaust ports. 01-26-2016, 03:11 PM. I think Yamaha calls for 2-3 "steps" for tightening down the head. Jul 29, 2016 · Per the Yamaha service manual minimum reference compression pressure is 140 psi. Could also get gas in oil by running too rich which it will do if running too cool especially if fuel injected. Yamaha's 139 cc 4 HP portable outboard mirrors the OHV F6, with a couple less horses. 8mm head bolts 10. I used to have a 20 hp 2 stroke Yamaha and recentley upgraded to the 4 stroke . $4,420. LEM. 6mm head bolts 4. The hand recoil starter on a 4-horsepower Yamaha outboard motor is a self-contained spring that powers a pulley. Whether it’s the Yamaha F115 or any other outboard make or model, the fact is head gaskets wear out and fail over time. Jun 1, 2019 · Hello, My 04' Yammy 4 stoke has begun overheating at idle, id say after about 3-5min of idle the temp alarm will go off. First, I aligned the crank and cam marks as noted in the manual, remove the flywheel, stator, brackets and tensioner. Bought the 3 hp 'new'. 9 HP 4-stroke that is having starting issues, it's turning over but not firing. A common problem with outboard motors, including the Yamaha 25 HP 4 Stroke, is a weak spark or no spark at all at the spark plugs. I’ve had this outboard since 2010, purchased new and have done all maintenance with no problems till this winter. on a 4 stroke it is a teat on a boar hog. 4. 00. Features: 1. The tank is built into the boat and never had a problem with it Feb 26, 2019 · Yamaha F200. 3 ft lbs first and 10 ft lbs second. Runs bad or cuts out when open throttle. Aug 12, 2021. Close the drain screw, open the fuel tap and add clean fuel. 3:1. It’s electro-hydraulic, meaning an electric pump moves hydraulic fluid upon command from the operator, tilting the thrust angle out or in. When I have it over 1,000 rpm, it is quiet. A repair will require the removal of the powerhead from the lower casing, and then you Jan 13, 2004 · Jan 12, 2004. I used cable ties to keep the cam marks from moving. Your outboard owner's manual will tell you the manufacturer's Failing Head Gaskets. 9hp 4-stroke not starting, bad/no spark. However, like any other mechanical device, Mercury 4-stroke outboards might face occasional problems that require troubleshooting and fixing. . Solution: Inspect the spark plugs and ensure they are clean and properly gapped. Next check the outboard’s carburettor. 9hp, 15hp, and 25hp 4 Stroke: F8hp, F9. Jul 23, 2022 · 1. Checked the diaphragm in the motor's mechanical fuel pump. Then remove the oil filler cap and the connected dipstick from the oil tank. If the engine still doesn’t run, you may need to clean the carb out, either with a can of carb cleaner, or at a workshop . I believe ECU controls the ISC opening allowing air from hose #1 (attached to the intake silencer) to go to hoses #8 & #9 (hooked to the throttle bodies after the throttle valves). 9. The Yamaha outboard alarm system can fail just like any other system on your outboard. From cold, the motor starts easily and I have to push in the choke right away. If the oil pump seals have failed, you will usually notice a film of oil on the water surrounding your engine or on the ground underneath. Jul 11, 2019 · 2007 25 hp Yamaha 4-Stroke Start Issues. Yamaha 250 Oil Pump Problems. 2003 F115 hp 4 stroke problems after 15 minutes of running. Take the spark plug wire boot off the plug tip. 06-23-2014, 11:29 AM. Remove the snaps on the outboard motor upper case and take off the cowl cover. But it was/is a great outboard. Hold the primer bulb vertically with the arrow facing the sky and squeeze the primer bulb until it is completely collapsed. Made of high quality material, durable. With the arrow pointing to the side where you pulled the hose off. It has been alleged that the corrosion, pitting and consequent engine failure typically occurs after only 500 to 700 hours of use. Replace them as necessary. Jul 23, 2022 · Their gasoline outboard Hangkai Two-Stroke outboard motor costs $150 which is a cheap but good quality outboard with 3. Feb 19, 2013 · It includes a rectifier, fuse, and wire harness. It is not winterized because it is used about once every month or two during winter. Mar 18, 2003. 06-07-2013, 10:52 AM. First I cleaned out the carb and switched out the spark plugs. These engines have only 89 hrs total time & this could be a warranty item, but I am 150 miles from a dealer. Water pump was last replaced in the fall of 2015. The outboard is used about once every week or two from April through October. 2. The part number for this kit is 6G1-81970-00-00. Sep 12, 2004 · Messages. motor WILL reach 5000 in neutral. At low throttle, I have run the motor for 40 minutes with no problems. Based on many reports of problems with the oil lubricating sump being contaminated with gasoline in marine four-cycle outboards, and your narrative of the symptoms, I'd say your Yamaha motor has this problem. Serial Number 68VL101495. The tell tail still has a water flow coming from it when the temp alarm comes on. With your socket wrench, remove the plug. Some users even particularly pointed that the motor struggle to crank. Replace any parts with damage. Changed the in-line filter. May 14, 2021 · First, inspect the fuel filters and look for clogs, cracks, kinks, or leaks in the hoses. Last year I had trouble with my F90TLR running rough on fast idle and then stalling when put into neutral (termed: the "issue"). 2024 Yamaha Outboards F25 hp. Whether you’re experiencing an intermittent bog down, poor performance, or complete engine failure, your fuel system is a common culprit. Use and Maintenance: Located in Nova Scotia, Canada. Jons. I have a 20 hp yamaha 4 stroke and I love it. When it is in neutral, everything is quiet. and it's running fine, even after my next door neighbor submerged it Also, run a tap or at least a cleaned up bolt through all the block threads, blow out with an air compressor and get them spotless for an accurate, assembly, torque (clean up bolts too). I pulled the plugs and cleaned them to no avail and eventually after checking as much as possible took Sep 30, 2020 · The shift linkage was not working. Cleaned the coarse filter in the tank. Turn off the fuel tap, then open the drain screw on the side of the carburettor and drain into a bucket. Sometimes it starts back up, but I usually have to wait for 15 minutes for it to cool down, then it Sep 11, 2018 · 2014 25hp bogging down problem. After putting everything back together, I started the motor and it would only run at increased throttle. When head gasket failure happens, water and other contaminants will eventually pass through the engine. The motor ran fine (Oct to May) all last winter in fla. One common problem associated with Yamaha F115 outboards is faulty head gaskets. The oil pump and the oil pump seals are known to give problems on the Yamaha 250. FAST $4. For those of you who own Single Cylinder 4 stroke outboards (i. The Primary ID is located on your outboard’s Serial Number label and on your Warranty Card. Jun 13, 2016 · Yamaha 2003 T60TLRB (4Stroke,60HP) 1. Normally rpms will reach 5000 and 45knots. The problem is it was built in 2004. I store on a motor stand inside a shop. 07-14-2020, 11:46 PM. Find your 4 Stroke Outboard yamaha-outboards motors and engines at Boat Trader today. I like it very much I have had no problems, it is not much heavier than the 2 stroke, and overall it runs and idles better than the 2 stroke. 8 ft lbs first torque, 22 ft lbs second torque. Tighten the bolts to 70 foot-pounds, using a torque wrench. Boat Specialists is a certified Yamaha Outboard Dealership & Service Center. Lufkin, Texas 75901. Next, check the diaphragm for cracks or other signs of damage. This comprehensive blog post Yamaha's 139-cc 4-hp portable outboard mirrors their OHV F6, with a couple of fewer horses. I know another person with the same motor, and has also got the same problem. dg ur ab zf lj zv cy os nw zq