2011 Yamaha Motorsports FX Nytro RTX Owners Manual - Page 75
2011 Yamaha Motorsports FX Nytro RTX Manual
Page 75 highlights
Periodic maintenance and adjustment 8. Install the right side cover and the shroud. Checking the brake fluid level EWS00460 WARNING Be careful that water does not enter the master cylinder when refilling. Water will significantly lower the boiling point of the fluid and may result in vapor lock. If the brake fluid level goes down, consult a Yamaha dealer. ECS00550 Brake fluid replacement is necessary when the following components are replaced during the periodic maintenance or if they are damaged or leaking. G All oil seals of the master cylinder and caliper cylinder G The brake hose ESU13612 Extrovert drive sprocket (FX10RTRS/FX10M53S/ FX10M62S) Check the extrovert drive sprocket for wear and damage. Replace if necessary. NOTICE Brake fluid may deteriorate painted surfaces or plastic parts. Never spill any fluid. If any is spilled, clean it up immediately. Place the snowmobile on a level surface and apply the parking brake. Check that the brake fluid is above the lower level and replenish when necessary. To measure the drive sprocket wear 1. 2. Measure 20 mm (0.79 in) up from the bottom of a drive sprocket tooth. Measure the drive sprocket tooth width at the height measured in step 1. If the tooth width is less than 13 mm (0.51 in), replace the drive sprocket. 2 1 1. Lower level 3 Specified brake fluid: DOT 4 1. Drive sprocket tooth 2. Measuring point height: 20 mm (0.79 in) 3. Drive sprocket tooth width ESU12144 Changing the brake fluid EWS00471 Skis and ski runners Check the skis and ski runners for wear and damage. Replace if necessary. WARNING Make sure that the brake fluid and the following parts are replaced by a Yamaha dealer. 69