mercury 80 hp with spark problems

merc800

Recruit
Joined
May 5, 2009
Messages
1
hi first i have a question on what my year is. my serial number is 3186382. then i was wondering i have great spark on all 4 cylinders but when i fires up i lose 2 of them. does anyone know what would cause this?
 

kjburr08

Seaman Apprentice
Joined
Apr 12, 2009
Messages
41
Re: mercury 80 hp with spark problems

Hey I do believe your motor is a 1972. You have almost the same motor as me. Mine is a 1972 80hp 800 2 stroke 4 cylinder, as is yours if I am right. About the spark problems, I can't really help there because I am having the same problems. Why I am not getting spark is because of broke piece in the distributor cap. I am not sure if this helps, but it has taken a lot of time to figure out what was going on with mine. I hope you figure out what is wrong with yours. Best of luck!! Parts for this motor are so expensive.
 
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