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Engine basics => Engine set up tips => Topic started by: James Mills on August 18, 2010, 09:57:38 PM

Title: OS25FP needle valve
Post by: James Mills on August 18, 2010, 09:57:38 PM

Is there another needle valve assembly that works well for the FP 25 if you don't have an orgional?

James

Title: Re: OS25FP needle valve
Post by: Bootlegger on August 19, 2010, 05:12:38 AM

  Try a Super Tiger, they work well. Seems that the 51 is the one that I use, but check, and you will have to drill the venturi and case to about .166 as the tiger needle is somewhat larger..
     Good luck :!

Title: Re: OS25FP needle valve
Post by: Brett Buck on August 19, 2010, 03:41:07 PM

Quote from: James Mills on August 18, 2010, 09:57:38 PM

Is there another needle valve assembly that works well for the FP 25 if you don't have an orgional?

James

  The ST or PA works if you drill out the hole, and then make the venturi larger. But you can still get the originals from Tower.

    Brett

Title: Re: OS25FP needle valve
Post by: Geoff Goodworth on August 20, 2010, 07:01:24 PM

To save you some work, the Tower catalogue number for the OS NVA is LXCR49.