25 hp 1985 hard start/run

tideslack

Recruit
Joined
Jun 11, 2009
Messages
2
This motor shut off while in use and I could not re-start. Took it to my friend, he said water in fuel. He changed plugs, cleaned carb and started off of different tank. It ran fine for him. From there the motor sat a few months, until I bought a new tank and hose. Tried to start.....nothing. Took it back to my friend, the only way it would start was with trottle almost wide open. Would only stay running with alot of trottle. Once it shut off, you could only re-start after changing plugs, pumping the primer, plenty of throttle and quite a few hard pulls. Went thru that process at least 6 times. Whats really got me confused is the having to change the plugs to getted it started each time. (switched same 2 sets back and forth)
 

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
Messages
51,019
Re: 25 hp 1985 hard start/run

sounds like slow speed adjustment, have you tried putting premixed gas directly into the carb and starting? did you check spark on both cylinders? compression?
 

tideslack

Recruit
Joined
Jun 11, 2009
Messages
2
Re: 25 hp 1985 hard start/run

Getting good spark, did not, have no way to test compression, but resistance when pull starting seems fine. How would I put gas directly in carb?
 
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