To check the backlash, temporarily fit the clutch housing (1) complete with the primary driven gear (A) on the
gearbox primary shaft. Fix a dial gauge to the crankcase, positioning the stylus against a gear tooth. Turn the
driven gear (A) to mesh the teeth and check that backlash ranges between 0.05 and 0.07 mm.
Repeat the check at 16 different points of the driven gear.
If the measured values are outside the tolerance limits, try changing the position of driven gear (A) on the primary
shaft, leaving the driving gear (B) on the crankshaft. If the backlash is still outside the tolerance limits, replace the
complete primary drive gear (1).
After having checked the backlash, apply bush (F) part no. 88713.3406 on a torque wrench, lock sprocket (B)
with holding tool (E) part no. 88713.3417.