Boyesen Clutch Cover - CC-30B
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Product Information
Full details
The Boyesen Clutch Cover (CC-30B) is designed for Yamaha YZ65 and YZ85 owners who demand a professional factory aesthetic combined with enhanced durability during motocross and enduro racing. This high-performance component offers superior resistance to weathering and daily wear compared to stock covers, though it requires precise installation techniques to ensure an absolute seal and prevent oil leaks.
All features
| Model Part Number | CC-30B |
|---|---|
| Brand | Boyesen |
Extended Product Information
FAQs
Which motorcycle models is the CC-30B compatible with?
This cover is specifically engineered for the Yamaha YZ65 and YZ85.
Does the cover come with a new gasket?
It is highly recommended to use a brand new OEM or high-quality aftermarket gasket during the installation process.
Is the powder-coated finish scratch-resistant?
Yes, the finish is designed to resist weathering and normal wear, though severe impacts may eventually scratch the surface.
Do I need special tools to install this cover?
Standard mechanic tools including a torque wrench and a gasket scraper are sufficient for a professional installation.
Will this cover improve engine performance?
While it does not change internal engine power, it improves mechanical reliability and structural integrity under race conditions.
Troubleshooting
Oil leaking after installation
Ensure the mating surface was cleaned of all old gasket material and that bolts were torqued in the correct criss-cross pattern.
Cover does not sit flush against the engine case
Check for debris on the engine case or the cover and verify that the gasket is properly seated without folds or damage.
Pros and Cons
Pros
- Significantly more durable than OEM stock clutch covers
- Provides a premium, professional race-look for the engine
- Excellent resistance to environmental wear and tear
- Precision-surfaced for a high-quality seal
- Optimized for high-stress motocross and enduro performance
Cons
- Requires careful installation to ensure a perfect seal
- Non-customizable finish options
- Higher initial cost than standard replacement covers
Setup, Compatibility & Care
To install the Boyesen CC-30B, first ensure the motorcycle is on a stable stand and the engine is cool. Drain the transmission oil completely before removing the stock cover. When removing the old gasket, clean the engine case surface thoroughly using a non-abrasive scraper to ensure no old material remains. Apply a new high-quality gasket and torque the bolts in a cross-pattern to the manufacturer's specified setting to prevent warping. Compatibility is strictly limited to Yamaha YZ65 and YZ85 models. For maintenance, periodically inspect the powder-coated surface for deep gouges and check the surrounding bolts to ensure they remain tight after the initial break-in period.