engine misfire

[carl lazar]

I have a new Yamaha 75 four stroke that has just started to misfire. Before I take the boat out of the water does anyone have any ideas. I changed the fuel line and the ball. You can e mail me direct at clazar5952@aol.com <br /><br />thanks <br /><br />carl

 

[Silvertip]

Re: engine misfire

If its new, its under warranty. Let the dealer figure it out.

 

[carl lazar]

Re: engine misfire

i am trying not to pull the boat out of the water <br /><br />cl

 

[rodbolt]

Re: engine misfire

how new is new ?<br />90% of the issues I deal with are fuel related ,most are not covered by warenty.

 

[carl lazar]

Re: engine misfire

the engine has 25 hours on it and i have changed the fuel filter fuel hose and fresh fuel but it still skips a little. i will give it one more week and then to the mechanic it goes. <br /><br />thanks <br /><br />carl

 

[demmer69]

Re: engine misfire

I have a 2003 carb version of that motor and it has been chugn, or missing about 1/4 throttle and sometimes at idle.. it is at the dealer right now under warrenty and they are saying that is normal for this motor.. (sure) let me know what you find out.. not sure if it is a ignition box breaking down or carb (fuel issues)..