Service Manual Verified — Yamaha Rx 135

The manual says: Standard main jet #130, pilot #15, air screw 1.5 turns out. If you add an expansion chamber (like an old RDD pipe), you don’t guess. You start at #140 main jet and read your spark plug color. The manual shows you how to remove the carb, clean it, and what a correct plug chop looks like.

: Inspect cylinder bore and piston rings every 8,000 – 10,000 km; bores typically require a rebore or replacement between 35,000 km (5-speed) and 50,000 km (4-speed). DIY Maintenance Tips yamaha rx 135 service manual

For maintaining the iconic Yamaha RX 135, owners typically rely on a combination of the Owner’s Manual , which covers routine adjustments, and the more technical Workshop/Service Manual The manual says: Standard main jet #130, pilot