2
69
E
N
G
IN
E ASS
E
M
B
LY AN
D CO
NTRO
LS
Idler wheel 1.
Torque limiter 2.
Free wheel coupled to main gear.
Main gear complete with free wheel coupled to
ignition gear.
1
2
5
3
5
4
A
ELECTRICAL STARTER UNIT AND
MAIN GEAR
Carry out the following controls before as-
sembly.
CHECKING ELECTRICAL STARTER
DEVICE ELEMENTS
Make sure that the teeth of all the gearwhe-
els of the device are intact, free from chip-
ping or signs or abnormal wear.
Pay attention to the teeth of the idler whe-
els
1
and torque limiter
2
and between the
gears and respective support pins. Replace
them if they show signs of meshing or sei-
zure.
Make sure there are no traces of meshing
on the housing of the roller bearing on the
starter gear
3
. Mount the starter gear tem-
porarily on the crankshaft, together with the
roller bearing and check to see if there is
excessive play.
To check the correct functioning of the free
wheel
4
proceed as follows.
Insert the starter gear
3
on the free wheel
4
and main gear unit
5
. Keeping the main gear
blocked
5
and turning the kickstart gear
3
clockwise, it must run freely. Turning the
kickstart gear
3
anti-clockwise, it must be
blocked without idling.
To replace the free wheel, disassemble the spe-
cial circlip
A
and remove the free wheel.
During disassembly make sure that the lugs on
the outer edge of the special circlip
A
are cou-
pled in the slots of the free wheel and in the
groove inside the main gear.
2
.10
2
.10
.1
