Thanks for this video. I had the oil level problem recently and just thought that I maybe overfilled it. Never considered the gas smell. This time I went out to go fishing and my oil light stayed on so I shut the engine off and checked the dipstick and it’s now milky like it has water in it. The boat has only been run once since last oil change and never had signs of overheating.
Same motor, the last few times when leaving, the motor will chug/sputter for about 5-10 minutes before it would run smooth. Once the motor was warm, no issues. Only does it when I first start it after many hours/overnight of sitting. I would warm up the motor at idle for 5-10 min before leaving. Any thoughts on what may be causing it?
Great Video, thank you! My 2017 VF115 overheated shortly after leaving dock. Seemed like the spitter was weak but no obvious obstruction. When overheated, I noticed oil psi read 0. When I pulled back into dock and hooked up water hose to flush, there was no overheating and PSI was normal. What do ya think--impeller?
It causes the engine to run cooler dumping more fuel that washes by the piston rings and into the crankcase. Had this exact issue on my 2000 F115. Thermostat fixed it for a couple years until an injector stuck open causing the same issue again but with poor running that time. The extra fuel fouled the plug so it was trying to run on 3 cylinders.
Very nice video,i have a problem my 115 Yamaha engine is no good running sometimes fast after a few minutes running can slow they cannot take off or it's hard to take off.what is that sir,
EXCELLENT VIDEO. MY Yamaha F115TLR is not pulling water with "Ear Muffs" placed over intake. No stream from water pump check-vent when motor is running. Do I need to replace the impeller, or could there be a problem with the thermostat? Thank you...
I was talking about that to my yamaha dealer on my new 70 outboard, he told me to use conventional oil. We're in the pacific northwest where the water is too cold to use synthetic oil. So the motor doesn't get to proper temp and it "makes oil" by sucking in fuel.. It's a thing up here. I had that happen in a yam 90 I was running synthetic, the oil got super high and smelled like fuel.
Thanks for this video. I had the oil level problem recently and just thought that I maybe overfilled it. Never considered the gas smell. This time I went out to go fishing and my oil light stayed on so I shut the engine off and checked the dipstick and it’s now milky like it has water in it. The boat has only been run once since last oil change and never had signs of overheating.
Great video. Good job. I'll replace my thermostat too. I have same motor on my boat. Great motor.
Yes! It’s great motor! Thank you for watching. 👍🏻
Nice video Anh 👏🏻👏🏻👏🏻
Thanks. Good vid
Thanks!
The fuel pump diaphragm was leaking fuel into your crankcase
Same motor, the last few times when leaving, the motor will chug/sputter for about 5-10 minutes before it would run smooth. Once the motor was warm, no issues. Only does it when I first start it after many hours/overnight of sitting. I would warm up the motor at idle for 5-10 min before leaving. Any thoughts on what may be causing it?
I got water in oil om my yamaha f100 when the termostate didnt close. Cause the hot engine with cold vater causes kondens to drip in the oilsump.
Great Video, thank you! My 2017 VF115 overheated shortly after leaving dock. Seemed like the spitter was weak but no obvious obstruction. When overheated, I noticed oil psi read 0. When I pulled back into dock and hooked up water hose to flush, there was no overheating and PSI was normal. What do ya think--impeller?
Yes, more than likely it is the impeller. My friend’s Honda 225 had same problem once.
@@sen75-lifearoundme47 thank you sir!
Np, good luck! Happy boating!
Great video .accent make me want to get some shrimps and gumbo....
Thank you!😊
It's your fuel pump
Good video. But how would the thermostat effect the oil level?
It causes the engine to run cooler dumping more fuel that washes by the piston rings and into the crankcase. Had this exact issue on my 2000 F115. Thermostat fixed it for a couple years until an injector stuck open causing the same issue again but with poor running that time. The extra fuel fouled the plug so it was trying to run on 3 cylinders.
@@bradeagle9724 was wondering the same thing, thanks for the explanation!
gas oil water flows through there? I think you might have other issues if that is the situation lol
Very nice video,i have a problem my 115 Yamaha engine is no good running sometimes fast after a few minutes running can slow they cannot take off or it's hard to take off.what is that sir,
Check the fuels system, sound like fuel injector clogged up.
EXCELLENT VIDEO. MY Yamaha F115TLR is not pulling water with "Ear Muffs" placed over intake. No stream from water pump check-vent when motor is running. Do I need to replace the impeller, or could there be a problem with the thermostat? Thank you...
Yes water pump...
Could you tell me the part number for the thermostat?
Just buy one from 4hp and up for yamaha 4 stroke😊 its the same😊
Hello friend, can you tell me if the current regulator located at the front gets quite hot? thanks
If your engine running hot, check the impeller and the poppet valve. You can google the part diagram to locate the part per your engine model.
@@sen75-lifearoundme47 no, my engine doesn't heat up, only the rectifier regulator gets hot, it gets really hot, I can't touch it, is it normal?
@@sen75-lifearoundme47 I have the same model as you
Yes! It’s quite normal, bc current run through and invert it from AC-DC to charge the battery, therefore, it’ll create some heat.
@@sen75-lifearoundme47 thank you very kind sir
👍
Water in the oil right ?
No gas leaks into the oil when the motor runs too cool.
@@jeffvw1994 Gas leaking inside the motor is usually the mechanical fuel pump. Very simple fix also.
I was talking about that to my yamaha dealer on my new 70 outboard, he told me to use conventional oil. We're in the pacific northwest where the water is too cold to use synthetic oil. So the motor doesn't get to proper temp and it "makes oil" by sucking in fuel.. It's a thing up here. I had that happen in a yam 90 I was running synthetic, the oil got super high and smelled like fuel.