C100 Primary Cluch Assy

C100 Clutch Plate Assembly

🔧 Clutch Plates · Friction Plates · Steel Plates · Transmission Component

For Moped, Cub & ATV · Fits 139FMB, 147FMD, 147FMF, 150FMG engines

This is the C100 Clutch Plate Assembly, a core component of the engine's clutch system. It is suitable for Mopeds, Cub series, and ATVs, and fits engines including 139FMB, 147FMD, 147FMF, 150FMG, and similar models.

The clutch plate assembly includes friction plates and steel plates, installed in the clutch hub. Power is transmitted through friction between the friction plates and steel plates. When the clutch is engaged, the plates are compressed together, transmitting power from the crankshaft to the transmission. When disengaged, the plates separate, cutting off power transmission. Manufactured with high-quality friction material and precision-stamped steel plates, this assembly offers stable friction coefficient, excellent wear resistance, and heat fade resistance. This assembly is the ideal replacement when the original clutch shows signs of slipping, juddering, incomplete disengagement, or difficult shifting.

This clutch plate assembly fits the following engine models:

• Mopeds - Various 50cc-150cc moped models (underbones, scooters, etc.)
• Cub Series - Honda Cub and clone models
• ATVs - Small-engine quad bikes / kids ATVs
• Dirt Bikes - Small off-road motorcycles
• Other vehicles using 139FMB, 147FMD, 147FMF, 150FMG engines

• Clutch Slipping: Engine RPM increases with throttle but vehicle speed rises slowly, especially noticeable on inclines.
• Jerky Takeoff: Noticeable vibration or judder during vehicle starting from a stop.
• Difficult Shifting: Incomplete clutch disengagement causes gear engagement difficulty or grinding.
• Incomplete Disengagement: Power not fully cut when clutch lever is pulled; vehicle tends to creep forward.
• Unusual Noise: Rubbing or scraping sound from clutch area, especially during partial engagement.
• Worn Friction Plates: Inspection reveals significantly reduced friction plate thickness or burned surfaces.

If you experience these symptoms, inspect the clutch plate assembly, clutch pressure plate, and springs, and replace if necessary.

• OEM Specifications: Manufactured to original dimensions and configurations for perfect fitment.
• High-Quality Friction Material: Premium friction material with stable coefficient, high heat resistance, and excellent fade resistance.
• Precision Stamped Steel Plates: Made from high-quality spring steel with precision stamping for flatness and durability.
• Stable Transmission Performance: Precise fit between friction and steel plates ensures smooth power delivery and gentle engagement.
• Direct Replacement: Directly replaces worn or damaged original clutch plates without modification.

🔧 Installation Tip

1. Replacing the clutch plate assembly requires removing the engine right side cover and clutch assembly; professional installation is recommended.
2. Before installation, inspect the clutch hub and pressure plate working surfaces for flatness; replace if worn.
3. Soak new friction plates in transmission oil for 15-30 minutes before installation to allow proper absorption.
4. Pay attention to the installation sequence: typically friction plates and steel plates are arranged alternately, with friction plates at the innermost and outermost positions.
5. Inspect clutch springs for fatigue or breakage; replace if necessary.
6. After installation, adjust clutch cable free play to the specified value.
7. Start the engine and check clutch engagement and disengagement for proper operation, without slipping or incomplete disengagement.
8. New clutch plates require a break-in period; avoid aggressive driving and prolonged partial clutch operation during initial use.

⚠️ Important Notice: This is a C100 clutch plate assembly, including friction plates and steel plates, suitable for Mopeds, Cubs, ATVs, and vehicles using 139FMB, 147FMD, 147FMF, 150FMG engines.
Size Confirmation: Different displacement engines may use different clutch plate counts and dimensions. Before purchase, please confirm your engine model or verify the original clutch plate count. Contact customer service if you have any questions.
Installation Notes: Soak friction plates in transmission oil before installation. Pay attention to the correct installation sequence. It is recommended to inspect clutch springs and pressure plate wear simultaneously. Images are for reference only. The actual product may vary.