Fuel Tank Crud? Redoing Fuel Lines, Etc. Options

[kenshapiro2002]

So, in my continuing fuel starvation saga (another thread), I'm almost ready to rebuild the webers. Rode her hard again yesterday, and she ran pretty nicely for awhile and eventually started to starve very hard at really hard throttle. Took a very good look in the tank, and the walls look pristine, but in the circular baffle area where the sock is, there were many very tiny pieces of black crud, and the sock, though very hard to see well, looked pretty dark too.

Opinions?

Also, I'm thinking that since my fuel filter was pretty clean, that the sock might be my real problem...should take care of that before making the carbs clean and possibly getting more crap in them.

If I do pull the tank and replace the sock, shouldn't I replace the fuel line back to the engine? Any threads on that? Can I just hook a new line up to the old and pull it through?

Thanks in advance,
Ken

[jmill]

Transition issues. What size idle jet? Check your float level and bump up your mains.

You are getting a lean transition when you go from idle jet to main jet. You need to make sure your float level isn't low. After that try bumping up your main jet to 125 or 130.

Having a low float level delays when you come on the main jets. Then you pop at @ 3K. If your float level is good bump up your main jets. I personally think they are too small. I'd go with 130's and then go smaller from there. It'll run ok if they're a bit too big. It pops and stutters or you burn up stuff if they're a bit too small.