1984 evinrude 20 hp back fires when giving it gas

Jeremy1986

Seaman
Joined
Jan 2, 2010
Messages
69
i have a 1984 evinrude 20 hp motor that runs and starts up on first pull. my problem is when you give the motor gas the motor back fires and sputters. any ideas. i believe this motor has cdi ign. how can i found out if it has cdi thanks jeremy
 

mikesea

Lieutenant Commander
Joined
Oct 1, 2006
Messages
1,830
Re: 1984 evinrude 20 hp back fires when giving it gas

make sure the timerbase under the flywheel is rotating along with the throttle,it would be connected ,sometimes the connectors fall off ,or plastic parts break
 
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