Bob Noel writes:

wrote:

I could, but aside from the variable of changing to a different
propeller, a static runup will basically tell me the same thing.
Besides, I'm out of ideas on what to try (except for the hydraulic
lifters which I meantioned in my first email).

Have you checked the muffler? A partial obstruction in the muffler
could result in lost power.

(just a shot in the dark...)


But a good one. I'm still thinking carb but that's without justification.

I've heard of using exhaust gas analyzers to look at the exhaust
for mixture.

I forget, has someone verified the value timing?



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