4-Stroke vs. 2-Stroke Outboards

[hellosailor]

A 4-stroke with a lot of vibration sounds like a motor that is simply badly balanced. And that's easily possible, with any engine from any maker.

If it is still under warranty I'd take it in and say that it runs very rough, out of balance. And if the shop says "that's the way it is" I'd contact the maker and tell them there's still something W R O N G.

[audeojude]

Originally Posted by hellosailor

A 4-stroke with a lot of vibration sounds like a motor that is simply badly balanced. And that's easily possible, with any engine from any maker.

If it is still under warranty I'd take it in and say that it runs very rough, out of balance. And if the shop says "that's the way it is" I'd contact the maker and tell them there's still something W R O N G.

I did that.. they said it just vibrates a lot normally and to get used to it. It doesn't run rough.. its not missing or anything. It just vibrates.. shakes the back of my 23 ft boat like its a vibrator. anything not latched down or secured makes a hell of a racket vibrating to. Like my cockpit locker hatch. You have to sit on it to keep it from making noise vibrating when the engine is running.

[GordMay]

The small Mercury & Nissan outboards are all the same engine, made (stencil line) by Tohatsu