Flywheel Magneto - Yamaha BR250F Service Manual

2. Add oil to the crankcase through the oil
holes. Oil the connecting rod.
3. Cover the crankcase with a clean cloth so
nothing will fall into the crankcase.
4. Oil the small-end bearing and install it in
the connecting rod.
5. Oil the connecting rod, and install the
piston. The arrow on the piston crown
must point to the front of the engine.
6. Oil the piston pin, and install it in the
piston. Be sure the piston pin clip is
correctly seated in the groove.
C. Flywheel Magneto
7. Oil the piston, and install the cylinder
onto the crankcase. Use a new cylinder
gasket. Torque the four cylinder bolts to
specification. You will need a 12 mm
crowfoot wrench.
Tightening torque:
First: 2.0 m-kg (14.5 ft-lb)
Final: 2.5 m-kg (18 ft-lb)
Flywheel Magneto
2-14
Coil Plate
Coil Plate Damper
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