Blue Line Big Bore Kit w/ Head 4T (72cc, 64mm Valves); 139QMB

Model Fitments

Brands: Amstar, Amigo, Ascend, Baotian, Bashan, Blade, Boom, Chicago Scooter Company, Dongfang, Roketa, Baotian, Bashan, BMS, Cool Sports, E Ton, Fly Wing, Eagle, Fly, Italica, Riya, Ice Bear, Jackel, Jet Moto, JCL, Taotao, Peace, JM Star, Jonway, Kazuma, Keeway, KMD, Kymco, Lance, Lifan, Linhai, Loncin, Longbo, Fuxin, Jiajue, Tao Tao, Tao Motors, Trailmaster, Maxtrade, Meitien, Motofino, Motorino, NST, Panterra, Panther, Qlink, Yiben, Red Streak, Redcat, Roketa, Schwinn, Strada, SYM, Tank, Terminator ,Tomberlin, TNG, United Motors, Vento, Vitacci, Wildfire, Wolf, X-Treme, X-Pro, Yongfu, ZNEN, Zhongneng , Zhilong, Geely, Wangye, ZH and more Manufactured by: Taizhou Zhongneng Motorcycle Co.; Jiangsu Zhongneng Motorcycle Co.; Jiangsu Meijunte Technology Co.; Taizhou Qianxin Vehicle Co.; Ningbo Dongfang Lingyun Vehicle Made Co.; Taizhou Zhilong Technology Co.; Zhejiang Jiajue Motorcycle Manufacturing Co.; Zhejiang Gelly Ming Industrial Co.; Taizhou City Senglong Motorcycle Manufacture Co.; Jiangsu Sacin Motorcycle Co.; Jiangsu Linhai Power Machinery Group Co.; Zheijiang TaoTao Vehicles Co.; Zhejiang Senling Motorcycle Co.; Sanmen County Yongfu Machine Co; Taizhou Jiaojiang Zhiwei Motorcycle Manufacture Co.; Huzhou Daixi Zhenhua Technology Trade Co.; Taizhou Zhongneng Motorcycle Co.; Zhejiang Riya Motorcycle Co.; Ningbo Longjia Motorcycle Co.; Taizhou Zhongneng Motorcycle Co.; and more

Description

Blue Line Complete 72cc High-Performance Big Bore Cylinder Kit for 50cc 4-stroke 139QMB engines.

Original Parts For Scooters SKU 151-280-47mm

NOTE: Remove your valve from your scooter’s head and measure the full length of the valve stem. Some scooters like Znen (Wolf Brand, GMW, Bintelli, etc), Kymco 50cc 4T(Agility), some newer TaoTao, and other 50cc 4-stroke scooters may have 69mm valve stem length. For these applications use part number 1100-1515.

Pump up that weak engine to a respectable 72cc displacement, on a budget. This kit is not intended to make your scoot a screaming race machine. It is intended to get you that extra power you need. (Most Chinese 50cc’s only put down around 1.5hp to the ground.)

Specifications:

1 – Head Assembly with 64mm valves
1 – Iron Cylinder with 47mm bore
1 – Piston with Rings (Not Pictured)
1 – Wrist Pin
2 – Circlips
2 – Exhaust studs
2 – Intake Studs
1 – Base Gasket
1 – Head Gasket

Compatibility:

139QMB-based 50cc / 80cc engines with the following engine codes:

139QMA	139QMB	1P39QMB	1P39QMA-2
YN139QMB	JJ1P39QMB	139FMA-2	BD1P39QMB
BN139QMB	147QMD	Other QMA models	Other QMB models

Don’t see your engine listed? If the engine code includes “QM” or “FM”, this product is compatible with your vehicle.

About Blue Line: Blue Line offers OEM equivalent replacement parts for on-road scooters. Blue Line parts are a direct-fit replacement when OEM parts are unavailable or overly expensive for your scooter. Since 2018, Blue Line has provided quality parts at great prices.

Reviews

There are no reviews yet.

Be the first to review “Blue Line Big Bore Kit w/ Head 4T (72cc, 64mm Valves); 139QMB”