Skip expensive dealership labor rates by diagnosing and fixing minor mechanical issues at home. Key Chapters and Technical Insights
Before turning a wrench, you must use the correct fluids and tolerances specified by Yamaha. Here is a quick-reference guide typically found in the general information section of the manual: Specification / Type Capacity / Value SAE 10W-40 (JASO MA2) 0.85 Liters (0.90 US qt) Engine Oil (With Filter Change) SAE 10W-40 (JASO MA2) 0.95 Liters (1.00 US qt) Spark Plug Gap: 0.8–0.9 mm Coolant System Ethylene glycol anti-freeze 0.49 Liters (Total capacity) Front Tire Pressure Stock IRC Trail Winner 29 PSI (200 kPa) Rear Tire Pressure Stock IRC Trail Winner 33 PSI (225 kPa) Routine Maintenance Schedule Checklist Yamaha Xsr 155 Service Manual Pdf