Use a gauge to measure the clearance between fork pin and the slot on the selector drum.
If the service limit is exceeded, determine which part must be replaced by comparing these dimensions with those of new components (sect. 3 - 1.1, Gearbox).
Also check the wear on the drum support pins; these must not show any signs of scoring, burrs, or deformation.
Turn the drum in the crankcase to establish the extent of radial play. If play is excessive, change whichever part is most worn.


Inspection of the gear selector forks
Reassembly of the gearbox shaftsChecking the battery charging system
To check the current flow of the recharging circuit, use the "dds" diagnosis
instrument, which is equipped with an
inductive clamp-type amperemeter: refer to chapter "testing the battery charging
system", sect. 6 - 11
With the dds diagnosis instrument you can determine the engine rpm required ...
Throttle valve operation engine
Introduction
The electric motor actuating the throttle valve for the vertical cylinder is
mounted on the throttle body of the diavel, while
a link rod connects the vertical cylinder throttle valve to the horizontal
cylinder throttle valve. In the electric motor, the
throttle valve position se ...
Checking the engine timing
Set the engine to the configuration described for the "checking and adjusting
the valve clearances", previously indicated.
Install tool 88765.1188 (G) in the spark plug bore to determine the piston tdc,
the gauges (h) on the tool 88765.1518
And the timing check tool (degree wheel (l) 887 ...