NCY Idle Jet 36 (139QMB, GY6, Universal)
Description: NCY Idle Jet #36 for 139QMB 49/50cc, GY6 125/150cc+ CVK or PWK carburetors, 250cc 4-stroke water-cooled 172mm carburetors. The idle jet affects fuel flow to the engine the most at closed throttle but has some effect at part throttle. The closer the throttle is to closed, the more influence the idle jet has on fuel flow. A larger size increases flow. A smaller size decreases flow. These jets have small passages and clogging is a common cause for starting or rough idle operation. Recommend cleaning with an air-compressor or replacing it if passages are still clogged.
Include the following Idle jet.
• Idle Jet Size: 36 RPM
• Thread Size: M6 x 0.75mm
• Overall Length: 28mm
• Fit CVK Carburetor
• Fit PWK Carburetor
• Fit GY6 125/150cc+
• Fit QMB 49/50cc+
Supported Models: GY6 139QMB 49cc-50cc 4-stroke, 50QMF 90cc-100cc, 152QMI 125cc, 157QMJ 150cc, 161QMK 170cc, Chinese Scooter, ATV, Genuine Buddy, Kymco, Polaris RZR 170, Ruckus, TaoTao, Vento, and virtually any 6mm idle jet slot CVK or PWK carburetors.
Item Weight & Product Dimensions:
• 0.0012 pounds | 0.315" (L) x 0.235" (OD) x 0.190" (ID)
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- Part #: 1300-1050