Hi All,
I have a 1970 Johnson 85hp motor. The engine starts up no problem, after about 30min of boating the engine seems to misfire when I put it on full throttle( pop pop noises) I reduced the throttle a bit and it runs fine.
When I stop the engine, it didn't want to start again. towed it home, started the next morning and it started(turns on and off no problem).
I get the feeling it has something to do when the engine warms up, like a cracked coil somewhere which expands with heat which probably grounds the current or something. when the engine cools down, it starts/stops fine and runs ok until it warms up again.
Engine is not overheating, i have installed a tail tail water is coming out normally the whole time.
Any ideas?
thanks!
I have a 1970 Johnson 85hp motor. The engine starts up no problem, after about 30min of boating the engine seems to misfire when I put it on full throttle( pop pop noises) I reduced the throttle a bit and it runs fine.
When I stop the engine, it didn't want to start again. towed it home, started the next morning and it started(turns on and off no problem).
I get the feeling it has something to do when the engine warms up, like a cracked coil somewhere which expands with heat which probably grounds the current or something. when the engine cools down, it starts/stops fine and runs ok until it warms up again.
Engine is not overheating, i have installed a tail tail water is coming out normally the whole time.
Any ideas?
thanks!