KYMCO MXU 450i, Service Manual

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3-42
Assembling Crankcase
Half
„
NOTE: For ease of assembly, install components
on the right-side crankcase half.
„
NOTE: If the output shaft was removed, make
sure that the proper shim is installed.
1. Install the output shaft into the crankcase making
sure the two gears, shim, washer, and nut are in the
correct order.
MD1199
MD1079
2. Apply red Loctite #271 to the threads of the output
shaft. Install and tighten the nut 59 ft-lb. Using a
punch, peen the nut.
MD1333
3. Apply a liberal amount of oil to the crankshaft
bearing. Using a propane torch, heat the bearing
until the oil begins to smoke; then slide the crank-
shaft assembly into place.
MD1334
„
NOTE: If heating the bearing is not possible, the
crankshaft can be installed using a crankshaft
installer.
4. Rotate the crankshaft so the counterweight is
toward the rear of the engine. Install the counter-
balance shaft.
MD1024
5. Keeping the counterbalance gear timing mark
aligned with the one on the crankshaft gear, install
the key and the counterbalance gear.
CD826A
6. Keeping the slot directed as shown, install the shift
cam and inner and outer washers.