NCY Compression Spring 1500 RPM (Aprilia, JOG, Zuma 50)
Description: NCY Compression Spring aka torque spring does a couple of things. First, they supply the pressure to engage the belt. They also determine the rate at which the CVT transmission changes from low to high gear. A 1500 rpm spring will go into a higher gear than a 2000 rpm spring. This NCY 1500 rpm compression spring is specifically for the Aprilia, JOG, and Zuma 50.
Compatible with sport clutches on the market works on Yamaha Zuma, Minarelli Jog engines, Chinese Yamaha Clones such as the 1PE40QMB 1E40QMB engines, Malaguti, CPI, as well as Aprilia Scooters with Piaggio engines, and Franco-Morini 50cc engines found in the 1E41QMB Suzuki AD50 AG50, TGB R50X, TGB 101, TGB 303 and Peirspeed Scooters.
Installation: 1. Slack the belt by opening the CVT clutch gives belt slack to the variator side. 2. Then install the variator drive face while lifting the slack belt further away from the center boss if done properly should not see any splines between variator drive face slop-side and boss flat-side. Should be flushed together. 3. Then install the existing variator fan, washer, and hand-tight nut. 4. Finally, apply blue Loctite, torque nut to 30-35ft-lbs. For reassurance please consult your manufacturer's variator torque specs.
Include the following Compression spring.
• 1x Spring Comp: 1,500 RPM / L: 108mm
• Spring ID: 44mm / OD: mm
• Wire Gauge: 4mm
• Made in Taiwan
• Fit Clutch: 107mm / Sheave: 33mm / Bearing Funnel: 42mm / Nut: M28 / Socket: 39mm / Bell Spline: 16
• Fit Belt Size: 818-19-28 (Fit Aprilia ONLY)
• Fit Belt Size: 788-17-30 (Fit JOG ONLY)
• Fit Belt Size: 748-18-28 (Fit Zuma ONLY)
• Fit Compression Spring: 1k, 1.5k, 2k rpm
• Fit Clutch Springs: 1k, 1.5k, 2k rpm
• Fit Aprilia 50
• Fit JOG 50
• Fit Zuma 50
Supported Models: NCY CVT KIT (Part# 1200-1197); Yamaha C3, Yamaha Zuma CW50, Yamaha Zuma 50F, Yamaha Vino Minarelli Jog engines, Chinese Yamaha Clones 1PE40QMB 1E40QMB engines, Malaguti, CPI, Aprilia Scooters with Piaggio engines, and Franco-Morini 50cc engines found in the 1E41QMB Suzuki AD50 AG50, TGB R50X, TGB 101, TGB 303, and Peirspeed Scooters.
Item Weight & Product Dimensions:
• 0.212 Pounds | 4.173" (L) x 2.291" (W) x 1.909" (H)