I was impressed with your bike, it was very well put together.
A small adjustment to the exhaust length to see if it can be better balanced with the inlet tract is certainly worth a look, it will only be a matter of a few millimeters.
The air correction jet may be worth a look to, the rough spot was not so evident with the leaner main jets.
originaly posted by Husaburg
A smaller air correction jet will not lean the main out as much at the top end of the rpm range. So by fiddling the air correction and main jet you may be able to lean the bottom off and keep the top rich.
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