'link': Yamaha Rx 135 Service Manual
You will hear this: "I’ve been fixing RXs for 20 years. I don’t need a manual." Respect his experience, but verify his work. Older mechanics often "eyeball" crank seals or use generic gaskets. The service manual gives you the factory numbers—like the 12–16 Nm torque for the cylinder head nuts. Over-tighten them on an aluminum cylinder? You’ll strip the threads into expensive oblivion.
Understanding the core measurements and factory tolerances is the first step toward successful DIY maintenance. The table below outlines the critical specifications required for accurate tuning. Specification / Tolerance 132cc, Air-Cooled, Two-Stroke, Reed Valve Bore x Stroke 58.0 mm x 50.0 mm Compression Ratio Carburetor Type Mikuni VM22 / VM24 (variant dependent) Main Jet (Stock) #135 or #160 (depends on 4-speed vs 5-speed model) Pilot Jet (Stock) #17.5 or #22.5 Spark Plug Type NGK BP7HS / BP8HS Spark Plug Gap 0.6 mm to 0.7 mm Transmission Oil Capacity 650 ml (Periodic change) Recommended Gearbox Oil Yamalube 4T or 20W-40 Type SF 2. Periodic Maintenance Schedule
Understanding the factory specifications is critical before turning any wrenches. These values ensure you restore the bike to its precise factory operating parameters. yamaha rx 135 service manual
The Ultimate Yamaha RX 135 Service Manual Guide: Keep Your Two-Stroke Legend Alive
The ignition timing is advanced too far BTDC. You will hear this: "I’ve been fixing RXs for 20 years
Disclaimer: Always work in a well-ventilated area and wear appropriate safety gear when performing maintenance on your motorcycle.
The Yamaha RX 135 (and its variants like the RX-King or RX-G) is a legendary 2-stroke motorcycle known for its simple yet robust engineering. A "deep paper" overview of its service and maintenance manual covers core technical specifications, overhaul procedures, and critical maintenance schedules required to keep this vintage machine in peak condition Core Technical Specifications The service manual gives you the factory numbers—like
Turn the air screw clockwise until fully closed, then back it out 1.5 to 2 full turns as a baseline.