OEM Yamaha Zuma 125 Upper Timing Stopper Guide #17 engine case Main Jet #90

Main Jet #90

with no supervision required

The 3-way adjustability includes rebound damping

Incorrect installation or use of the wrong parts may cause blown headlights (not covered under warranty)

OEM Yamaha Zuma 125 Upper Timing Stopper Guide #17 engine case Main Jet #90Maintain the stability and alignment of the timing chain in your Yamaha Zuma 125 scooter with this genuine OEM Upper Timing Chain Guide, also known as Stopper 2. This essential component guides the cam chain in the upper engine section, preventing slack, reducing vibration and noise, and ensuring precise valve timing for optimal engine performance. Manufactured to Yamaha's rigorous standards, it provides a direct replacement with superior durability