four winns fling omc problem

[wrasp]

Hi guys, first time visitor to the forums. And I was asked to post this here in this section as well. So here goes...

I have a 97 four winns. I recently replaced the fuel filter and the spark plugs and changed the oil with the omc hpf ultra lube. This was in an attempt to fix a very strange issue I was having. I get a strange shudder around (and I am guessing with no rpm gauge) 1,250 rpm and up. The engine sounds like it is running fine and not missing at all. It almost feels like a engine mount is damage and a vibration it there. I have had the boat since new and this is the first time I have noticed it.

Not sure where to even start to look. There does not seem to be any power loss but my top speed might be down a few mph's.

Any suggestions on where to start to look would be great.

Thanks guys, glad I found this site

Andrew

 

[cmcpherson]

Re: four winns fling omc problem

Did you check the prop for damage?

 

[Don S]

Re: four winns fling omc problem

What engine and outdrive?

 

[Boatin Bob]

Re: four winns fling omc problem

I recently replaced the fuel filter and the spark plugs and changed the oil with the omc hpf ultra lube.

I hope this didn't go in the engine

 

[wrasp]

Re: four winns fling omc problem

sorry it is a omc 115 turbojet. I did check the prop and even took it apart today and it seems fine. Repacked it with grease and put it back together.

And no, the oil went in the jet drive gearcase it is a 2 stroke.

I know it is getting oil as well if someone was going to suggest that.

Was wondering if it could be the timing? not sure how to set that

I know trying to describe noise or vibration is the hardest thing to do in words but any ideas would be appreciated

Andrew

 

[Don S]

Re: four winns fling omc problem

It's an outboard powerhead, you should be posting in the Jonrude forum. Just post that it's a 115hp 2 stroke, then you will be in the proper forum.