03 WR jetting for off idle?

1 reply to this topic
  • Racer577

Posted March 09, 2004 - 03:45 AM


I just picked up a leftover 03 WR 450 last week and have a miss while riding at a constant speed. I was riding at 55-60 mph in top gear, with the throttle open enought to hold speed. Some times it runs fine other times it misses. If I get on or off the gas it runs fine. Pilot was changed to one size above stock at 1.5 turns out. Didnt like the glowing header I got with the stock pilot. I tried richer and leaner on the needle with no luck. Any suggestions?

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  • 5spoke

Posted March 09, 2004 - 04:12 AM


I've tried every possible setting and found you just have to live with it. Using the JD red needle helped but didn't get rid of it.

I lowered the gearing and lug it slightly to get rid of the stutter at constant speeds.


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