fuel filter puzzle

[Keith Black]

Steve, do as Lance suggested and reduce the pump pressure. I had to do exactly the same thing and it made a huge difference. Turn the pump pressure screw out 1/2 turn, then if that's not enough start incrementing by 1/4 to 1/8 until you get to the right setting.

I had to turn mine a full turn out before all was said and done. When breaking in I opened it up 3/4 turns just to get it to run without dying at low throttle. After that it began running well during most of the pattern but would die on the outside loop from the top (theory is it was flooding the engine on the downward portion of the loop). I reduced the pump pressure another 1/8 turn and now it runs great. 

Keith

----- Original Message ----- 
  From: Patternrules at aol.com 
  To: discussion at nsrca.org 
  Sent: Wednesday, March 26, 2003 8:40 PM
  Subject: Re: fuel filter puzzle


  I tried the fuel filter move tonight and no difference, but I'm not using the crap trap, My Webra is doing exactly as you describe not good transition from 1/2 to 3/4 throttle, I have tried various settings high end set at anywhere from 9 clicks out to one full turn out, low end 1 to 2 turns out, the transition works good at low 1 1/4 out high at 1 turn out but won't idle more than a few seconds, and die, at 1 1/2 to 1 3/4 low the idle is perfect but the transition just smokes like crazy then finally clear out that is with the high end at 10 clicks out, all with the Greves pipe at the recommended length, the Bolly 590 was better but not as much rpm and was real sensitive to setting the high end one click either way was to much. Haven't looked for bubbles.

  Steve Maxwell 
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