You-All 18mm CVK PD18J Carburetor | 139QMB Ruckus
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Eliminate hesitation and restore consistent power to your 50cc scooter with the You-All 18mm CVK PD18J carburetor — our #1 selling carburetor. Larger venturi with a mechanical accelerator pump for crisp throttle response and a stable idle on daily commuters and performance builds alike. Model: PD18J (CVK type) Intake bore: 18mm Air filter mount OD: 40mm Main jet: #81 Idle jet: #33 Compatible Models (139QMB / GY6 50cc): Chicago Scooter Co.: go., go. Max, Bella 50, Nitro Sport Wolf Brand: RX-50, Islander, Rugby, Blaze, Lucky, Jet Lance: Cali Classic 50, Cabo 50, PCH 50 Honda: Ruckus / Metropolitan (select 50cc carb models) All 139QMB / GY6-powered 50cc scooters, ATVs, and quads with PD18J carburetors Mechanic's notes: After installation, ensure your throttle cable has a small amount of freeplay so the accelerator pump can fully reset between throttle inputs. Off-road use only. Not intended for use on public roads or land. California Prop 65 Warning: www.p65warnings.ca.gov
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