Vespa Primavera 50 - Service manual > Flywheel cover

Cooling hood

• Unscrew the five indicated screws and remove the cooling cap.

Cooling fan

• Remove the front part of the fan, unscrewing the three fixing screws.

• Using the specific tool, unscrew the cooling fan fixing screw.
• Remove the fan.
• Recover the wrench.

Specific tooling

020442Y Pulley lock wrench

Removing the hub cover

• Remove the oil dipstick.
• Remove the sensor connector.
• Unscrew the eleven fixing screws of the flywheel cover.

• Remove the cover.
• Remove the gasket.
• Pay attention to the alignment dowels.

Removing the stator

• Remove the flywheel cover.
• Unscrew the 2 flywheel fixing screws and the four pick-up fixing screws and cable harness retainer screws.

• Remove the flywheel and the pick-up complete with cable harness.

Refitting the stator

• Refit the stator and the flywheel carrying out the removal steps but in reverse order, tightening the retainers to the prescribed torque.
• Respect the operation of the pick-up.

Locking torques (N*m)
Stator fixing screws 8 ÷ 10 Pickup fixing screws 3 - 4

Refitting the flywheel cover

• Fit the gasket and be careful with the two alignment dowels.

• Tighten the screws and tighten to the specified torque.

CAUTION

TO AVOID DAMAGING THE OIL SEAL, USE THE SPECIFIC TOOL PRIOR TO POSITIONING THE FLYWHEEL COVER.

Specific tooling

020940Y Flywheel cover oil seal gasket

FLYWHEEL COVER SCREWS

Flywheel and starting

Removing the starter motor

• Undo the two fixing screws and remove the starter motor.

Removing the flywheel magneto

• Undo the screw indicated and remove the plate.

• Install the specific tool and unscrew the retainer nut of the flywheel, recovering the washer.

Specific tooling

020939Y Flywheel retainer

• Before screwing in the flywheel extractor the protection tool provided in the specific tool must be positioned.

Specific tooling

020933Y Flywheel extractor

• Acting on the extractor, remove the flywheel together with the starting sprocket and intermediate gear.

Inspecting the flywheel components

• Check the integrity of the internal plastic parts of the flywheel and the Pickup control plate.
• Check the integrity of the internal plastic parts of the flywheel and the Pickup control plate.

Refitting the flywheel magneto

• Perform the procedure in reverse order of disassembly, taking care to tighten to specified torque.

Locking torques (N*m)
Flywheel fixing nut 100 to 110

Refitting the starter motor

• Fit a new O-ring on the starter motor and lubricate it.
• Fit the starter motor on the crankcase and lock the two screws to the prescribed torque.

Locking torques (N*m)
Starter motor screws 10.8 to 12.8

See also: