1986 9.9 hp Mercury outboard motor

Frank G.

Recruit
Joined
Jan 7, 2003
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1
Have replaced plugs, coils, switchbox assembly. Refilled with all new gas. Still will not start. What else is there to check?
 

ob

Admiral
Joined
Aug 16, 2002
Messages
6,992
Re: 1986 9.9 hp Mercury outboard motor

Billy john, Have you checked to see if you are getting spark?
 

JB

Honorary Moderator Emeritus
Joined
Mar 25, 2001
Messages
45,907
Re: 1986 9.9 hp Mercury outboard motor

Howdy BillyJohn.<br /><br />First, remove your plugs and spin it over. You should be able to get a 1/2 to 3/4" arc from each plug wire to the block.<br /><br />If you have good spark, spray some fuel mix into the carb and see if she tries to start. If she does, you have a carb or fuel supply problem.<br /><br />Let us know what you find and we will take it forward from there.<br /><br />Good luck. :)
 
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