Yamaha YFM250XL(C) Service Manual page 190

6
MIDDLE GEAR SERVICE
2.Remove:
Bolts 1 (middle gear case cover)
Middle gear case cover 2
Dowel pins
3.Remove:
Middle driven shaft assembly 1
Bearing 2
Shim 3
Driven pinion gear 4
Middle drive axle
1.Remove:
Nut 1 (middle drive pinion gear)
Middle drive pinion gear 2
NOTE:
Flatten the punched portion of the middle
drive gear nut using the drift punch.
Put the engine in 1st, and carry out the
operation.
Use the Rotor holder 3 hold the clutch
boss 4.
Rotor holder:
P/N. YU-01235, 90890-01235
Refer to the "ENGINE DISASSEMBLY -
PRIMARY AND SECONDARY CLUTCHES"
section in CHAPTER 4.
2.Remove:
Middle drive axle assembly 1.
Refer to the "ENGINE DISASSEMBLY -
BALANCER SHAFT, TRANSMISSION AND
CRANKSHAFT" section in CHAPTER 4.
6 - 4
DRIV