Trouble with 1976, 70hp Johnson motor.

[Laurie Jorgensen]

Mrs. Laurie have you checked the fuel pump, screen in the pump, diaphram in the pump, and the fuel hoses from the fuel pump to the carbs and don't forget the pulse hose from the motor to the fuel pump. and leaks or just cracks may give you problems. I've had several older outboards that the hose liners would come apart and you get small (very small) pieces of black hose in the fuel system stopping up a new carb rebuild. You may want to check fuel pressure while running. Hope this helps.

Please read my previous posts and you will see that I have checked everything that has previously been suggested but to no avail.

I see there are a lot of other people having similar problems to this motor both with Johnson and Evinrude motors. However I have not seen any posts where the owner of a problem motor has found and remedied the problem and posted advice on how this was done to the forums.

Regards,
Laurie.

 

[Laurie Jorgensen]

We do not see any smoke under the cowl so how does one check for an exhaust leak?

Regards, Laurie.