Description
This CSC Complete Variator Kit is a full front-pulley replacement for the CSC go. and other scooters with GY6 139QMB / 139QMA 50cc engines. It replaces a worn variator, grooved drive face, or flat-spotted rollers in one package, which fixes sluggish acceleration, belt slip, and vibration and restores smooth CVT performance. It's equivalent to part 151-219.
Features
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Complete kit: Variator body, drive face, cooling fan, ramp plate, drive boss, kick start ratchet, and rollers.
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88mm variator: Stock-size body for the 139QMB.
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Drive face with starter gear: 62-tooth starter ring gear.
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Six 16x13 rollers: 6.5g weights for stock gearing.
Specifications
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Part number: 1200-4005
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Equivalent part number: 151-219
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Variator outer diameter: 88mm
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Drive face inner diameter: 20mm
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Starter ring gear: 62 teeth
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Drive face / ratchet center splines: 26
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Cooling fan splines: 12
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Ramp plate inner diameter: 14mm
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Drive boss: 20mm
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Rollers: Set of 6, 16x13mm, 6.5g
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Includes: Variator body, drive face, cooling fan, ramp plate, drive boss, kick start ratchet, 6 rollers
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Brand: Chicago Scooter Company (CSC)
Model Fitment
| Make |
Models / Engines |
| Chicago Scooter Company |
go., go. MAX, Bella Classic 50, Nitro Sport 50, Pug 50 |
| Other makes (Chinese) |
Many TaoTao, Wolf, ZNEN, Peace Sports, BMS, Bintelli, and other 50cc 4-stroke scooters |
| Engine codes |
139QMA, 139QMB, 1P39QMB, 1P39QMA-2, YN139QMB, JJ1P39QMB, BD1P39QMB, BN139QMB, 147QMD |
139QMB engines are based on Honda's GY6 design and are used by many Chinese 50cc scooter brands. Check the engine code on your engine case, and compare your variator size and spline counts with this kit before ordering.
Installation Notes
Install the rollers with their closed side facing the direction of rotation. Clean the crankshaft splines, keep the belt faces free of grease, and torque the variator nut to spec.
Product Diagrams
