Specification Desc./Quantity
Class E Main journals - diameter: 45.998 - 45.993 mm (1.8109 - 1.8107
in)
Once the categories below are checked:
1. crankcase;
2. flywheel side main journal;
3. centre main journal;
4. clutch side main journal.
Choose the bushings used for assembly from the following table
CRANKSHAFT BUSHINGS UP TO NO. 3990
Crankshaft main journal Class A crankcase Class B crankcase Class C crankcase
Class A main journal Bushing (blue) Bushing (blue) Bushing (red)
Class B main journal Bushing (yellow) Bushing (blue) Bushing (blue)
CRANKSHAFT BUSHINGS FROM NO. 3991
Crankshaft main journal Class A crankcase Class B crankcase Class C crankcase
Class C main journal Bushing (blue) Bushing (red) Bushing (red)
Class D main journal Bushing (blue) Bushing (blue) Bushing (red)
Class E main journal Bushing (yellow) Bushing (blue) Bushing (blue)
The flywheel side and clutch side main bearings are different from the central ones and therefore, so
are the respective replacement part numbers.
Engine TUONO V4 R a-PRC ABS
ENG - 356