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Author Topic: fox needle valves  (Read 509 times)

Offline philip metzner

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fox needle valves
« on: June 01, 2010, 11:47:40 PM »
Several years ago i bought two new NVA's for my fox .35's. The ones i got have two holes in the spray bar. They are so sloppy in the threads the engines wont run without a piece of fuel line fitted tight between the needle and spray bar. I have two of the original brass spray bars and fox tells me they have new needles to fit them. Do you think that would be any better, or just a waste?
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Offline Geoff Goodworth

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Re: fox needle valves
« Reply #1 on: June 02, 2010, 05:44:10 AM »
Philip, I suggest that if you want to repolace the factory Fox NVAs, use the excellent NVA that Randy Smith produces for the Fox 35.

It's a straight drop in but it is turned down to retain the correct venturi throat area.

Cheers, Geoff
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Offline Jim Thomerson

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Re: fox needle valves
« Reply #2 on: June 03, 2010, 02:19:17 PM »
I've been running stock Super Tigre NVA's in my Fox stunt 35's for years.  I could not get a consistent run with the Fox NVA. 
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