1987 25 hp motor miss

henryp

Cadet
Joined
Jun 30, 2004
Messages
7
motor starts,idles,runs well up to approx 1/2<br />throttle then starts bogging down,missing,was running at approx full throttle when problem occured,cannot get past half throttle now,#1 plug<br />gets fouled,put new plugs in-same
 
Joined
Feb 25, 2006
Messages
15
Re: 1987 25 hp motor miss

It sounds like you may need a switch box. I just had similar problems. But it is hard to say with out knowing compression, firing, and assuring that your getting clean fuel. Try rapair.com for numbers to troubleshoot your ignitions.
 
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