1990 502 Mag Rough idle and 3000 RPM limit

Flysfloatsor

Banned
Joined
Oct 7, 2010
Messages
202
Before I start randomly replacing parts.

What would cause rough Idle and 3000k rpm WOT.

Im am not over propped. 24p 4 blade on 2200 lb boat.
Compression is good.

I cleaned the fuel lines and carb last weekend, still ran the same.

Im thinking it needs a new cap and rotor, plugs and wires.

Anything else I should be looking at?
 

Flysfloatsor

Banned
Joined
Oct 7, 2010
Messages
202
Re: 1990 502 Mag Rough idle and 3000 RPM limit

Ordered a cap and rotor from NAPA. It was cheap enough to try.
 
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