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Several months ago I made about a 35 minute run to some fishing grounds on Puget Sound in my 17 Montauk with a friend. After a fews hours of fishing we started the return trip and after about 10 minutes into the journeys, my 90 hp 1985 2 stroke Yam lost power and quit on me. I spent about 15 minutes inspecting the motor and trying to restart it but no such luck. About 2 hours into my journey home on the kicker I tried starting it again and no joy once more.
I'd had plenty of gas but the oil reservoir was about 1/4 full. I usually check it every other time out and the last time it was nearly full. No overheat alarm ever sounded and my tell tale stream remained strong.
Today I put it in the water and the engine ran great for about 20 minutes at full cruise (4000 rpm). We checked the plugs and compression and all seemed normal. Any ideas what happened? Does this motor have a low oil shuttoff that just needed to be reset? Any help would be great!
It's a good thing you had a kicker.
That is why I highly recommend that every boat have an auxiliary motor unless of course they already have twin engines.
I am not that familiar with the Yamaha but it doesn't sound right that being low on oil in the oil tank would cut the engine off. A 1/4 tank is still a lot of oil.
Maybe some of the Yamaha experts can tell us more.
