Yamaha 225 4-Stroke Quit - Ideas?? Update

General Boats and Motors
1

OK, I’m not a mechanic. Yesterday my new to me 2005 Yamaha 225 4-stroke with about 250 hours quit all of a sudden after running great for 2 days. It would crank but only run for 3 to 5 seconds then quit again. It has a fuel/water separator. Other filters are unknown. The motor is still under warranty but I’m hoping its a fuel problem. Water? Ethanol? The boat had been used on 2 offshore trips earlier this year but the gas (120 gallons) dates back to April and beyond. No fuel additives. Called the guy i bought it from and he swears it had never done that before.
I’d love to take it to ChrisV but thats a long haul from Irmo.
Any ideas would be appreciated.

OK, so my mechanic says a motor with a fuel lifter pump should not have a primer bulb. They took it out and motor ran fine. Who knows? Primer bulb or not??

SeaPro 23 WA Yam 225
High Tide 16 Honda 40
Key West 17’ Stealth Yam 115

2

It will be worth the haul to Chris V.

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150 Yamaha 4 Stroke

3

you could run it with a portable 6 gallon gas can with fresh fuel.

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4

how are you suppose to prime the system if you run out of gas?
what about when you change the fuel filter?

if the primer bulb was faulty replace it
if the lift pump fails, you can at least pump the primer bulb and keep the motor running

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5

chris V - Thanks for your reply! When the motor quit the other day, we pumped the primer bulb for 30 min. to no avail. I understand your points completely that was just what my mechanic was saying. I’m guessing if you were working on it you would leave the primer bulb on. He is replacing the lift pump. (expensive!!) Guess I’ll see if that works. Based on your opinion I think I’ll have him put on a new primer bulb as well. Thanks again.

SeaPro 23 WA Yam 225
High Tide 16 Honda 40
Key West 17’ Stealth Yam 115

6

does that motor use the same type of low pressure pump as an OX66? If so the job shouldn’t be that expensive.

Grady White 222