2000 Yamaha 60hp 4 stroke

[Steveflorida]

ut in Yamaha lube (Ring Free) as shock treatment. Have run engine for 9 hours, still running rough, smoking profusely, and surging. Is this normal?

[fairdeal]

well, there are some things for which a "Ring Free Shock treatment" may help -
but there are many problems for which it can do nothing.

If your problem is one that can't be helped by a "Shock Treatment"....

I didn't know Yamaha was making an F60 as early as 2000 model.
Seems a safe bet its got a carburetor - or four.

Think those are on the list of "don't expect a miracle cure from Ring Free"

[TownsendsFJR1300]

Plus 1 ^^. RF can only do so much.

Per the parts site here, they made four, 4 stroke models, all carbureted (three carbs):
https://www.boats.net/catalog/yamaha...lry/carburetor

And no, EXCESSIVE smoking is not normal. Even a shock mix of RF won't smoke nearly what your describing...


I gather the smoke is bluish (which would be oil burning).

Time to pull spark plugs, inspect, a compression test and a leak down test as well should give you some answers..



Sounds as if your rings / block are worn causing excessive oil burning/plugs fouling, etc.


Is your oil level normal or dropping with use? How many hours on the engine and is the engine "new" to you?

[99yam40]

is the motor making oil and over full of oil?

motor could suck extra oil thru a bad valve guide seal or by a bad oil ring also