Description
UMA RACING TIMING CHAIN GEAR DECOMPRESSION R15 MT15 XSR155 02TG0040 (02TG0040)
Specifications
| Attribute | Details |
|---|---|
| Size | 02TG0030 |
| Brand | UMA RACING |
Description
Part Number: 02TG0040
Brand: UMA Racing
Part Number: 02TG0040
Product Name: Adjustable Timing Gear with Decompression Mechanism
Application
Compatible with:
- Yamaha R15 V3
- Yamaha R15 V4
- Yamaha MT-15
- Yamaha MT-15 V2
- Yamaha XSR155
- Other related Yamaha VVA engines
Function
- Allows adjustment of cam timing by approximately 5 degrees for engine tuning
- Includes a decompression cam to reduce starting effort, particularly useful for high-compression engines
- Can be used to tune power delivery according to riding requirements
Cam Timing Adjustment Effects
Advance Timing
- Stronger low and mid-range performance
Retard Timing
- Shifts power delivery toward higher RPM ranges
