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Dirt Bike Brands - Other
'01 wr426 missing at high rpms
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[QUOTE="wayneo426, post: 149500, member: 21136"] [b]Throttle stop?[/b] SFC, The culprit may be a missing throttle stop screw. Many dealers take the easy way out when delivering the WR new. Did they ask you if you wanted the throttle stop removed? If they did, and did NOT shorten it and REPLACE it, you very well may be confusing the TPS at WFO throttle. This will cause the bike to spit, and sputter @ high revs. I had the same issue resolved by cutting the stop down to a total of 23mm. The bike does not spit anymore WFO. There is an article on TT, here it is: [URL=http://www.thumpertalk.com/yamahawr400/Technical/Throttle_restrictor/throttle_restrictor.html]Throttle restrictor[/URL] Most dealers simply remove the stop. The ones that know what they're doing, shorten and replace it. The bike simply revs to the moon with it reinstalled at 23mm. If after all this, your still missing, I would re-jet. I have heard you dont have to re-jet when going to YZ timing. The jury is still out on that one. [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
'01 wr426 missing at high rpms
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