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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
when jetting is lean, why does the engine surge, w
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[QUOTE="smb_racing, post: 211580, member: 19356"] banging on the pipe? I'm not familiar with that term but it sounds like maybe an engine knock? What octane of petrol do you run? If your engine knocks then you might need a higher grade fuel, but as for surging or sputtering at WOT then that is controlled by the mainjet and needle. [/QUOTE]
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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
when jetting is lean, why does the engine surge, w
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