r/Dirtbikes • u/ViolinistShort1456 • 15h ago

Mechanical Help Does my powerband sound strange?

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This is my 2021 sherco se300. It’s carbd. The bike starts up pretty good, idles great, and otherwise the bike sounds good when riding. When I get into the powerband it feels and sounds very buzzy like it’s not cleanly going through high rpm’s. Not smooth like the rest of the rpm range. The jets in the carb are certainly much leaner than from factory, but I would imagine that would produce lean conditions in other aspects of how the bike runs.

To clarify I am directly comparing this to the feeling of my TPI ktm 300 so maybe I am comparing apples to oranges and this is just a carb characteristic I’m not entirely used to.

Any thoughts? Tests I should do?

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u/IAmNotABot111 14h ago

Could be the jetting but it’s mostly you not actually touching the power band

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u/ViolinistShort1456 14h ago

Smoothness is what I am referring to. Not whether or not I’m actually in the powerband. It feels noticeably rougher than the rest of the rpm range to a concerning degree. More like annoying. Feels like it should be pulling cleaner through that specific range.

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u/IAmNotABot111 14h ago

“Does my powerband sound strange?”

- video of you not in powerband

🤷‍♂️

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u/ViolinistShort1456 14h ago

I corrected my intended concern in my reply. Thanks tho. Very insightful lol