- Start the engine and check that the light works
properly and the rpm indicator can read also the
high rpm (e.g. 8000 rpm).
- If flash unsteadiness or revolution reading error
is detected (e.g. half values), increase the resistive
load on the spark plug power line (10 ÷ 15 KΩ in
series to HV wire).
Version 125:
- Remove the slit plastic cap on the flywheel cover.
- Adjust the lamp flash dephasing corrector to make the reference on the flywheel cover collimate with
the level on the water pump drive. Read the advance degrees indicated by the stroboscopic lamp.
Characteristic
Check ignition advance 125
10° ± 1° at 2000 rpm - 34° ± 1° at 6000 rpm
Version 250:
- Remove the spark plug.
- Remove the plastic cover from the slotted hole
on the flywheel cover, indicated in the picture.
- Remove the transmission compartment air intake
cover shown in the photograph.
B 125-250 Maintenance
MAIN - 43
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