Yamaha Rx 135 Service Manual

The RX 135 is often mistaken for a simple “engine on wheels,” but the manual devotes equal gravity to the chassis. The swingarm pivot bolt torque (45 Nm) and steering stem bearing preload are specified with the same rigor as the cylinder head nuts. A detailed flowchart guides the owner through dismantling the “Yamaha Energy Induction System” (YEIS) resonance chambers—small plastic bottles connected to the intake tract—that smooth out two-stroke throttle response. Most owners neglect these; the manual insists they be checked for cracks.

Electrically, the RX 135 is a 6-volt system (later CDI models switched to 12V), and the manual provides ignition timing checks using a simple continuity tester or strobe light. The wiring diagram, printed as a fold-out in the original publication, is a work of functional art: every wire color (Black/White for kill switch, Red/White for CDI power) is traced, and every ground point is mapped. This section alone has saved thousands of RX 135s from being abandoned due to “no spark” issues traced to a corroded kill switch or a broken neutral safety wire. yamaha rx 135 service manual

The RX 135 is a tuner’s dream. Here is how the service manual helps even when modifying: The RX 135 is often mistaken for a

The core of the service manual revolves around the 132cc, air-cooled, two-stroke engine. The manual distinguishes between two major variants: the 4-speed (standard) and the 5-speed (RX-135 5-speed/RX-Z), which feature differing port timings and compression ratios. Most owners neglect these; the manual insists they