Re: Help Please on Lightwin Carb issue?

[Don]

OK, thanks for the info. I understand now, the engine idles down but only at a higher than normal throttle setting. So, ignore my yammering about "the powerhead must be in good shape" if the engine idles down nicely. Sounds like you have checked fuel flow pretty thoroughly also, but go ahead and remove the fuel line letting fuel flow into a glass jar for a minute or so.
At this point, it is hard for me to recommend anything in particular. You might try using this engine’s carb on a good running lightwin to rule in/out carb problems. I’ll reverse my advice again and ask about the intake gaskets, does it look like the intake manifold has been off/disturbed? Does it look like the crankcase has been split/apart before? I’m assuming you have had the head/exhaust cover off cleaning out all the salt. There is a slight compression difference, about 6%, did you see any excessive scuffs/scores/stuck rings?
The symptoms you describe don’t seem ignition related, but I am not there and can’t hear seen the engine running. At this point, I am leaning towards internal powerhead problems/excessive wear, but don’t want to condemn the engine based just on what I’m reading.
Thankyou for providing answers to my continuously changing questions, any chance of doing a running video?