1975 25 horse engine back fires through exhaust

rpmdj1

Seaman Apprentice
Joined
Oct 6, 2015
Messages
47
1975 25 horse evinrude

ok I turn it over with new starter and it turns fine but backfires through the exhaust I got spark compression fuel so what gives
I'm about done with this motor
 

racerone

Supreme Mariner
Joined
Dec 28, 2013
Messages
36,033
These are very good motors.--------If the plug wires are reversed the motor will bark at you like a wild dog.-----Check that.
 

Faztbullet

Supreme Mariner
Joined
Mar 2, 2008
Messages
15,589
Pop out the exhaust is usually ignition related and out carb is fuel related
 
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