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Fuel Issue

J

jnscherr

Contributing Member
I have a 1983 70hp Johnson wi

I have a 1983 70hp Johnson with what I think is a fuel problem. It runs great at idle and up to about 4000 rpms. Any higher than that the motor surges and then dies. It will start up afterwards and run o.k till I hit around 4000 rpms again. I haven't replaced the fuel pump in a while but don't want to start throwing parts into the motor for nothing. Thanks again.
 
"Check for minor fuel line lea

"Check for minor fuel line leaks. This would allow the pump to draw air.

The brass high speed jets located in the bottom center of the carburetor float chambers could be slightly fouled. Clean them.

Thousands of parts in my remaining stock. Not able to list them all. Let me know what you need and I'll look it up for you. Visit my eBay store at:

http://stores.ebay.com/Evinrude-Johnson-Outboard-Parts-etc?refid=store"
 
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