Gilera 633721 Workshop Manual page 114

Engine
- Check the continuity between the 3 phases.
N.B.
VALUES ARE STATED AT AMBIENT TEMPERATURE. A
CHECK WITH THE STATOR AT OPERATING TEMPERA-
TURE MAY RESULT IN VALUES HIGHER THAN THOSE
STATED.
Electric characteristic
Resistance:
0.2 - 1 Ω
- Check the ground insulation of each phase.
- If a fault is found, carry out a thorough check of
the cable harness that contains two types of cable:
Rigid cables close to the stator and flexible cables
close to the connector.
- Check that the winding is positioned so as not to
interfere with the heads of the retaining screws.
- Check that the mounting surface of the crankcase
is not worn or deformed.
- Check that the by-pass valve seat, the torque
limiter and the water pump shaft are free from
wear.
Characteristic
By-pass housing hole diameter:
13.9 mm
Connection diameter for start-up gear shaft:
12 mm
Connection diameter for pump shaft:
8 mm
ENG - 114
Nexus 500 euro 3