Yamaha YZF-R125 Service Manual: Crankcase

Crankcase


Crankcase


Crankcase


Installing the primary drive gear and balancer gears
1. Install: Balancer driven gear "1" Lock washer Balancer drive gear "2" Primary drive gear Washer "3" Balancer driven gear nut Primary drive gear nut NOTE: Align the punch mar ...

Separating the crankcase
1. Remove: Crankcase bolts NOTE: Loosen each bolt 1/4 of a turn at a time, in stages and in the proper sequence as shown. A. Right crankcase B. Left crankcase 2. Turn: Shift drum s ...

Other materials:

Checking the valve seats
The following procedure applies to all of the valves and valve seats. 1. Eliminate: Carbon deposits (from the valve face and valve seat) 2. Check: Valve seat Pitting/wear Replace the cylinder head. 3. Measure: Valve seat width C "a" Out of specification Replace the ...

Catalytic converters
This vehicle is equipped with catalytic converters in the exhaust system. WARNING The exhaust system is hot after operation. To prevent a fire hazard or burns: Do not park the vehicle near possible fire hazards such as grass or other materials that easily burn. Park the vehic ...

Installing the fuel hose
1. Install: Fuel hose Fuel hose connector cover CAUTION:When installing the fuel hose, make sure that it is securely connected, and that the fuel hose connector cover is in the correct position, otherwise the fuel hose will not be properly installed. NOTE: W ...

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