Engine starts fine for a few minutes

[rz]

I have a 1967 Johnson 80hp, finally got it to start, but after it runs for a while I can restart it fine two or three times. Then I let it sit for 10-20 minutes and it will attempt to start,but never will until about an hour later.<br />Any ideas, I'm using the Clymers Manual but it doesn't really seem to help in that manner...

 

[twierz]

Re: Engine starts fine for a few minutes

So...it starts 3 or 4 times, then wont start? Mainly problems when starting warm? Cranks but wont start? Can you provide a little more info

 

[rz]

Re: Engine starts fine for a few minutes

Yes, it seems to be mainly when it warms up. If I leave it running it appears to run indefinitly. I can start it a couple more times, then it will just turn over and not fire, it may sputter every now and then. If I let it sit for about an hour, it will start right up. <br />I even loosened up the bowl on the bottom of the carb out of courisity, replaced it and then too, it fired right up.<br />I truly believe it is something very simple, but this is quite new to me. I guess a new motor would have been a different story!

 

[twierz]

Re: Engine starts fine for a few minutes

Welcome to the club... EXAXT problems that I am having with a 91 Johnson. Mechanic says everything checks out fine. Started 8-10 times for him just fine. I cant be of any help, hopefully someone else can. good luck

 

[Lee5267]

Re: Engine starts fine for a few minutes

I have delt with some motors that require a different starting procedure like a hot start for a warmed engine. You may try leaning the mixture and increasing the throttle once it gets warmed up to start it again. good luck