'96 Johnson 35 hp problem

Jabbo100

Recruit
Joined
Jun 15, 2020
Messages
2
Have this on another forum so thought I would see what kind of help I could get here.

"Well after I installed all new fuel lines, new caps for fuel pumps, o-rings, plugs and filter I thought I had it fixed. It did do better going up river. Cranks better and seems like all cylinders are firing. So we fish all day moving multiple times with no issues. So we head back down river which is about a 10 minute ride and it does good. Get to landing switch off and back truck in. Start to crank and it will not. When it finally does it's running really rough and not on all cylinders seems like. I've got the fast idle up and it sounds like it's barely above idle speed. After about a minute or 2 of this it finally kicks in and revs up to normal so we can load it. I don't know whether this is a fuel problem or an electrical problem. Sorry for the long post but this is very frustrating and I've about had enough of this motor lol. Thanks!!
 

Nmocci

Cadet
Joined
Apr 25, 2016
Messages
9
Does pumping your primer bulb while this is happening change the way it runs? Do you have an adjustable spark tester to verify spark? I would start by verifying everything I could first. How do your plugs look after it runs like this?
 

Jabbo100

Recruit
Joined
Jun 15, 2020
Messages
2
Did not try pumping the bubble while it was acting up. Plugs look good and have done a spark gap test.
 
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