User manual YAMAHA PX-2

[. . . ] primarily for use by Yamaha dealers and their qualified mechanics. It is not possible to include all the knowledge of a mechanic in one manual. Therefore, anyone who uses this book to perform maintenance and repairs on Yamaha vehicles should have a basic understanding of mechanics and the techniques to repair these types of vehicles. Repair and maintenance work attempted by anyone without this knowledge is likely to render the vehicle unsafe and unfit for use. [. . . ] Press the valve through the valve guide and onto the valve seat to make a clear impression. NOTE: Where the valve seat and valve face contacted one another, the blueing will have been removed. 4. Lap: S valve face S valve seat NOTE: After replacing the cylinder head or replacing the valve and valve guide, the valve seat and valve face should be lapped. 5-30 VALVES AND VALVE SPRINGS ENG a. Apply a coarse lapping compound a to the valve face. CAUTION: Do not let the lapping compound enter the gap between the valve stem and the valve guide. Apply molybdenum disulfide oil onto the valve stem. Install the valve into the cylinder head. Turn the valve until the valve face and valve seat are evenly polished, then clean off all of the lapping compound. NOTE: For the best lapping results, lightly tap the valve seat while rotating the valve back and forth between your hands. Apply a fine lapping compound to the valve face and repeat the above steps. After every lapping procedure, be sure to clean off all of the lapping compound from the valve face and valve seat. Apply Mechanic's blueing dye (Dykem) onto the valve face. Refer to "FUEL TANK" in chapter 3. Refer to "COWLINGS" in chapter 3. Refer to "CHANGING THE ENGINE OIL" in chapter 3. Disconnect. 1 2 3 4 5 6 7 8 9 Stator coil assembly lead coupler Plug Generator rotor cover Gasket Dowel pin Generator rotor assembly Dowel pin Bearing housing Collar 1 1 1 1 2 1 2 1 1 5-35 STARTER CLUTCH AND GENERATOR ENG 10 Nm (1. 0 mSkg, 7. 2 ftSlb) 14 Nm (1. 4 mSkg, 10 ftSlb) 12 Nm (1. 2 mSkg, 8. 7 ftSlb) 22 Nm (2. 2 mSkg, 16 ftSlb) 12 Nm (1. 2 mSkg, 8. 7 ftSlb) 10 Nm (1. 0 mSkg, 7. 2 ftSlb) 12 Nm (1. 2 mSkg, 8. 7 ftSlb) 22 Nm (2. 2 mSkg, 16 ftSlb) 10 Nm (1. 0 mSkg, 7. 2 ftSlb) Order 10 11 12 13 14 15 Job/Part Bearing Stator coil assembly lead holder Idler gear Idler gear shaft Washer Bearing Q'ty 1 1 1 1 1 1 Remarks For installation, reverse the removal procedure. 5-36 STARTER CLUTCH AND GENERATOR STARTER CLUTCH ENG Order 1 2 3 4 5 6 7 8 9 Job/Part Removing the starter clutch Generator rotor Damper Driven gear Washer Starter clutch drive gear Collar Washer Spacer O-ring Q'ty 1 3 1 1 1 1 1 1 1 Remarks Remove the parts in the order listed. For installation, reverse the removal procedure. 5-37 STARTER CLUTCH AND GENERATOR ENG REMOVING THE GENERATOR 1. Remove: S rider seat S fuel tank Refer to "SEATS" and "FUEL TANK" in chapter 3. Remove: S left side cowling S bottom cowlings Refer to "COWLINGS" in chapter 3. Drain: S engine oil Refer to "CHANGING THE ENGINE OIL" in chapter 3. 4. Remove: S plug S generator rotor cover 1 NOTE: S While pushing generator rotor, remove the generator rotor cover. S Loosen each bolt 1/4 of a turn a time, in stages and in a crisscross pattern. S After all of the bolts are fully loosened, remove them. Remove: S generator rotor and starter clutch assembly 1. 6. [. . . ] Connect the battery (DC 12 V) to the fuel pump coupler as shown. If fuel flows out of the fuel hose, the fuel pump is OK. If fuel does not flow, replace the fuel pump. 8-52 SELF-DIAGNOSIS SELF-DIAGNOSIS ELEC The YZF-R1(S) features a self-diagnosing system for the following circuit(-s): S Fuel pump thermistor S Oil level switch If any of these circuits are defective, their respective condition codes will be displayed on the warning light when the main switch is turned "ON" (irrespective of whether the engine is running or not). Circuit Fuel pump thermistor Oil level switch Defect(-s) S Open-circuit S Short-circuit S Open-circuit S Short-circuit System response S The fuel level warning light indicate the condition code. [. . . ]