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KEIHIN idle jet size 40, designed for KEIHIN carburetors. An essential adjustment part of the low flow circuit, this jet influences the richness at idle and low revs by controlling the fuel flow into the air/fuel mixture. Ideal for maintenance operations, fine-tuning idle settings, or replacing a worn jet.
Brand: KEIHIN
Category: Jet
Size: 40 (ref. N424-22040)
Usage: idle and low rev adjustment on Keihin carburetors
Before any intervention, check compatibility with your carburetor model and maintain a clean environment to avoid clogging the pathways. Replacing or adjusting the jet is part of routine operations to control engine behavior at idle and improve low rev consistency. If you are unsure of the necessary calibration, consult your workshop manual or a carburetor specialist.
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