Re: Looking for general guidance on U20 tuning.
Posted: Tue Dec 28, 2021 1:55 pm
interesting. i’ll check on our lines. thank youunklpat wrote: Sun Dec 26, 2021 8:01 pm "Now we’re running into an issue that has left me clueless. After we had the engine running for maybe 5-10 minutes, idling at about 800rpm or so. All of a sudden it starts revving up like crazy and increasing in rpm. I just shut it off, kinda of panicked a little.
Now when we go to start it again, it immediately starts to ramp up and soon as it starts." This sounds like a classic lean situation. Look at the lines feeding the carbs, I've seen them pinched, and causing the header to glow red. Pat