Mercury 90 starting-running problems

thedeluge

Recruit
Joined
Jun 21, 2002
Messages
4
Mercury 90 starting-running problems

I have a 1978 Mercury 90 horse six cylinder out board. Here's where we are. It wouldn't start even with starting fluid. It seemed like it wasn't getting any spark for about ten minutes, then all of a sudden as the battery was about dead the moter fired right up!! ( really strong and ran great ) I made it about 3/4 of the way around our 6 mile lake and then she just up-n-died on me. No chugging or anything, just flat out died. I tried starting it up again to no avail. I took the battry out and gave it a full charge over night, cleaned the plugs, cleaned the cap and rotor and checked the fuel line for blocks. The next day it wouldn't start at all.
 

mnmfors

Petty Officer 2nd Class
Joined
Nov 18, 2001
Messages
176
Re: Mercury 90 starting-running problems

Re: Mercury 90 starting-running problems

Hi, the experts may correct me, but the first thing I would do is check all connections and grounds. (clean, should be free of corrosion). Just for kicks, try a hairdryer on the coils and elec. components. <br /><br />I wouldnt use starting fluid either, it could damage your engine....2 cycle engines need oil with the gas, starting fluid has no oil in it. <br /><br />Good luck.
 

JB

Honorary Moderator Emeritus
Joined
Mar 25, 2001
Messages
45,907
Re: Mercury 90 starting-running problems

Re: Mercury 90 starting-running problems

Very bad form to double post, Deluge.
 

thedeluge

Recruit
Joined
Jun 21, 2002
Messages
4
Re: Mercury 90 starting-running problems

Re: Mercury 90 starting-running problems

Attn JB!!! Thanks for the response I'll let you know if it works. Also re: the double post. I had no intention of wasting your time and, the double post was an accident.... sorry.
 
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