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stage 1 jets

  1. Twin-Cam Engine
    There may be already a thread on this..my apologies if so. I currently have a tbr exhaust and an Arlen ness stage 1 air filter in my bike. The bike idles fine but once I pull off it backfires BAD and while spit out of the carb so often. I’m assuming I need to rejet it to accommodate. I’m looking...
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