The original RX 135 5-speed is a collectible. If you cannot find OEM pistons, you might use an RX King piston or aftermarket like Art or RDD. The service manual teaches you the stock dimensions (bore: 56mm, stroke: 54mm). With that data, you can safely calculate compression ratios and port heights when fitting non-standard parts.
Look for fluid sweating or leaks around the rubber dust seals. Scratches on the chrome inner fork tubes require immediate replacement to prevent seal laceration. Brake Adjustments
Slide the cylinder head off. Gently scrape away carbon using a soft brass scraper or wooden wedge. , as it will scratch the aluminum surface. yamaha rx 135 service manual
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.
This document is your ultimate guide to understanding, maintaining, and repairing your machine. It goes far beyond the owner's manual, providing the detailed technical information needed for everything from routine tune-ups to a complete engine overhaul. This article serves as your complete companion to the RX 135 service manual. We'll explore its critical importance, the treasure trove of information inside, how to find a copy, and how to use it to keep your RX 135 in showroom condition. The original RX 135 5-speed is a collectible
Measure with a feeler gauge to ensure it sits strictly between 0.6 mm and 0.7 mm.
The Yamaha RX 135 utilizes a Mikuni VM22 slide carburetor. Proper calibration ensures optimal throttle response and prevents the engine from running lean, which causes pistons to seize. Standard Carburetor Jetting Specs #135 or #145 (Depending on emission norms/year) Pilot Jet: #17.5 or #22.5 Jet Needle Clip Position: 3rd groove from the top Air Screw Settings: 1.5 to 2.0 turns out from fully seated Steps to Adjust the Air Screw and Idle Warm the engine up to standard operating temperature. With that data, you can safely calculate compression
By investing in a Yamaha RX 135 service manual, you'll enjoy numerous benefits, including:
The right-side crank seal (under the magneto) fails constantly on old RXs. The manual shows the the seal must sit—not flush, but 1.5mm recessed. Too deep? It blocks the oil passage. Too shallow? The magneto rotor rubs.
The RX 135 relies on a Capacitor Discharge Ignition (CDI) system. Unlike older point-style ignitions, a CDI requires minimal maintenance but demands pinpoint accuracy during alignment. Checking the Ignition Timing