slows down at full throllle

locknut550

Cadet
Joined
Apr 17, 2004
Messages
22
ive got a 1981 merc. 7.5 . it starts up easy, and when i first start out with it runs fine but after about 10 min at wot it will slow down slightly and will have a slight miss as well. squeezing the primer bulb does nothing. it idles perfectly and accelerates good, it just doesnt have quite the top end as when its cold.
 
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