misfire

[Hugo]

Hello:I have a 94 johnson150 faststrike, since the last month, began to misfire when I put the gear forward or reverse in the water,but at the neture gear push the throttle forward or reverse fully, it doesn't any problem, I had already change the ignition coil, key switch, clean the carburetor and change the gasoline tank, however. it also like before, now I suspect it is the problem of the powerpack or the charge coils, can anyone tell me what's the problem and please forgive my bad English.

 

[Hugo]

Re: misfire

It may be the problem of powerpack.

 

[Walker]

Re: misfire

Have you changed the spark plugs. They will seem fine with no engine load but miss when under a load.

 

[Hugo]

Re: misfire

Walker: I had change spark plug already, sometimes, six spark plug also have good fire,but after shut off, it can't get any fire, but when I remove the timing sensor plug and connect again, it will be fine.(Timing sensor has change the new one).