F3 stumbling off idle
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Joined: Mar 2020
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I put the old needles (2nd clip) and main jets back in (142-144-144-142), and the stumble has gone.
I don't believe that a K&N alone could cause problems with stock jetting (138-140-140-138) and needles. So I guess the previous owner has done additional work I'm not aware of.
I think I'll try the middle ground next (140-142-142-140 with 2nd clip on the needles)
I don't believe that a K&N alone could cause problems with stock jetting (138-140-140-138) and needles. So I guess the previous owner has done additional work I'm not aware of.
I think I'll try the middle ground next (140-142-142-140 with 2nd clip on the needles)
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