RE: mvvs 58 limited edition
Tickover to midrange should be a bit burpy! Leaning this out will jeopardize proper throttle response. This is normal in two stroke engines.
Let the engine idle (1400-1600 rpm) for 5 minutes, then apply throttle smoothly but without hesitation (no throttle goosing please). The engine should accelerate without lagging, hickups or need to clear it's lungs. That is the measure of a properly tuned carb idle section. Further final adjustments to be done with the H needle.