Could be something blocking the exhaust.
Have also heard of a dent or restriction in fuel line causing this type
of symptom
(vapor lock when warm).
bs
john close wrote:
>Hello Listers - Got me a new one:
>
> Runs normally until warmed up. Then, it runs, but weakly. Feels like the
>throttle linkage has slipped, but it hasn't. I have to push the accelerator
>about 1/4 if the way down before rpm's increase. It idles normally.After it
>cools down, it's temporarily fine again. Replaced my fuel filters and checked
>flow from my fuel pumps. Both were fine. Suggestions? Ideas? Thanks - John
>Close
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