HELP 2005 mercury 115HP 4 cylnder 2 stroke outboard

S

sinkingpontoon

Recruit
Joined
Jul 16, 2011
Messages
1
Please any advise..Boat ran fine last weekend, took out today wont start, cranks over but does not start, has new gas and new plugs....May be a separte issue but the fuse that shuts power to motor and trim has blow a few times in last month....
 
hotrod53

hotrod53

Chief Petty Officer
Joined
Oct 16, 2009
Messages
508
Re: HELP 2005 mercury 115HP 4 cylnder 2 stroke outboard

Needles are probably stuck in the carbs. If you don't run it out of fuel every time you use it, in less than a week the ethanol in this crap fuel we have will swell the rubber ends of the float needles. Remove your bowls, if they're dry, you found your problem. You can confirm if you buy some outboard starting fluid, if it fires on that, you have no fuel in the carb. BTW, you're not supposed to use plain starting fluid since it has no lube in it like a 2 stroke needs.
 
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fletch756

Cadet
Joined
Jun 4, 2009
Messages
6
Re: HELP 2005 mercury 115HP 4 cylnder 2 stroke outboard

I had the same problem with my 1996 115 hp mercs two days ago. Cranks strong but wont start after running awsome. have no spark at all four plugs. I disconnected the black wire with yellow stripe to eliminate the emergency shut-offs. (A recommendation) Where can I go from here?
 
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