: For specific technical deep-dives (like the RXZ variant), supplements like the Yamaha RXZ135 2001 SP provide torque specs and exploded engine diagrams. Critical Maintenance Specifications Specification Transmission Oil Multigrade 20W40 (Approx. 0.65 Litre) Spark Plug Gap 0.7 – 0.8 mm Chain Slackness 20 – 30 mm Tyre Pressure Front: 25 psi / Rear: 28 psi Fuel-to-Oil Ratio 16:1 to 20:1 (for pre-mix/injected systems) Routine Service Intervals Every 500 km : Clean and lubricate the drive chain. Every 1,500 – 2,000 km : General engine service and oil check. Every 10,000 km : Service or replace spark plugs and air filters. Top-End Service
Some Indian printers have reprinted the manual illegally. Quality varies from perfect to "blurry photocopy of a photocopy." Useful in a pinch, but the wiring diagrams will be black smudges.
This section outlines the periodic maintenance required to keep the RX 135 running at 35+ kmpl and running smoothly. It covers: Spark plug checks and cleaning. Air filter cleaning. Transmission oil changes. 2-Stroke oil pump calibration. 2. Engine & Transmission
Many enthusiasts have scanned original manuals. A simple Google search for "yamaha rx 135 service manual PDF" will yield results on forums like: yamaha rx 135 service manual
The official Yamaha RX 135 service manual (typically printed as a comb-bound or loose-leaf Yamaha publication, now widely circulated as PDF scans) is a masterpiece of technical communication. It is structured into logical chapters that mirror the bike’s assembly: General Information , Periodic Maintenance , Engine Overhaul , Fuel System , Electricals , and Chassis . What distinguishes it from a generic owner’s manual is its depth. The service manual does not merely suggest checking the spark plug gap; it provides photographic sequences for splitting the crankcase, dial-indicator measurements for crankshaft runout, and detailed oil-flow diagrams for the autolube pump (a critical and often misunderstood system on the RX 135).
Accurate adjustments require adhering to factory specifications. Below are the critical technical details for the Yamaha RX 135. Engine Specs 132cc, two-stroke, air-cooled, single cylinder Bore and Stroke: 58.0 mm x 50.0 mm Compression Ratio: 6.6:1 Idling Speed: 1,300 RPM ± 50 RPM Fluid Capacities
The RX 135 has a vibrant and dedicated online community. Enthusiasts on forums like xBhp, Team-BHP, and others have been instrumental in preserving and sharing technical knowledge. Many of these communities have digital copies of the service manual that have been scanned and shared. A simple search for "Yamaha RX 135 service manual PDF" on community forums or dedicated motorcycle repair sites often leads to downloadable copies. However, caution is advised; while many resources are legitimate, some sites may have low-quality scans or, in rare cases, malicious software. A good first step is to check forums specifically asking for the manual, as members often provide reliable links. : For specific technical deep-dives (like the RXZ
Any or part replacements you have done.
This section lists the essential data needed for maintenance: 2-Stroke, Air-cooled, Single Cylinder. Displacement: 132 cc or 135 cc (depending on model year). Spark Plug: NGK BP7ES or BP8ES.
The service manual is your best friend when things go wrong. It will help you systematically diagnose and fix these frequent issues faced by RX 135 owners. Every 1,500 – 2,000 km : General engine
Verify that the alignment mark on the pump pulley matches the pin index mark on the pump body.
I can provide targeted step-by-step diagnostic advice for your machine. Share public link
Advanced tuners measure port heights (in mm from the cylinder deck). The manual gives you the stock timings. With a caliper and that baseline, you can calculate how much to raise the exhaust port (usually 1mm = ~2 degrees duration). Without the manual, you’re filing blind.
