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Cold weather jetting question

530 Views 3 Replies 3 Participants Last post by  mexicanyella
So I'm trying to dial my TJR motor in and it exhibits some interesting symptoms. I can start it up really easy, even in the coldest weather. It will idle without choke after 10 seconds...and it was 45 degrees out.

After about two minutes, the bike revs cleanly. Go take it for a ride and once it starts warming up, it stops running well..particularly in the 1/4 throttle range. Runs fine WOT.

it idles perfectly smooth. I'm guessing the pilot is too big? Once the motor warms up, the 1/4 turn low speed becomes too rich and causes the stuttering and such.

Offbase or what? Any input is appreciated.
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