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Old 06-27-2019, 05:22 PM
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Jim Cook Jim Cook is offline
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Join Date: Sep 2006
Location: Smackover, Arkansas (AR)
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Quote:
Originally Posted by adriano.ro View Post
I know how to do it but I don't know how much preload to make on it. I saw somewhere something about filer gage( is the corect name,for tool that mesure thickness?).

I have an annoying flat spot between 25%-55% of throttle. I suspect the power valve preload. Now is ok,no slop or to much freeplay .

Gear ratio is 13-50
Carb: 40p NECW#3 -some riders find this needle too soft on bottom, it can be part of my problem.
Main jet 170.
I have been running a 42 pilot jet on my AS2 (2011).
If your pv is close to right, it shouldn't cause a flat spot at 25%-55% throttle. That sounds more like a jetting issue.
Lots of riders really like the NEDW, so I don't think that's the problem. Have you tried the needle clip in the 2nd groove from the top?
That should lean the jetting a bit in the 25%-44% throttle range, and may make a huge difference.

The thickness measurement tool is a "feeler gauge".

Good luck!
Jim

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Jim Cook
Smackover Racing
Team LAGNAF
'11 Gas Gas EC250 (primary ride)
'06 Gas Gas DE300
2004 Gas Gas TXT300 Pro
'94 Husaberg FE350
'86 Yamaha IT200
'86 Honda TRL200 Reflex
'04 KTM 525EXC (soon to be dual sported)
Several others, including project bikes, Deb's bike, and a fleet of grandkids' bikes

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