I hope you mae sure it was smoking as soon as you started it. Always warm a two stroke before riding. Unless I'm at the top of a long hill I don't ride till I see 60C.

Rider sag should be set to about 30 mm, static about 10 mm on a road bike. If you can't get your preload around those figures you'll have to respring.
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MC21 Honda NSR250. TYGA 300 conversion.