Vespa GTS Super 300 ie - Service manual > Flywheel and starting

Removing the starter motor

• Remove the two screws indicated in the figure
• Take the starter motor out of its seat

Removing the flywheel magneto

• Remove the water pump shaft and crankshaft spline clip

• Line up the two holes in the flywheel as shown in the picture

• Screw in the guide bushing that is part of the special flywheel stop tool on the flywheel as shown in the picture

• Insert the special flywheel stop tool on the flywheel as shown in the picture

Specific tooling
  020627Y Flywheel lock wrench

Remove the plate indicated in the picture.

• Remove the flywheel nut with its washer
• Do up the flywheel nut by three or four threads so that the flywheel does not fall accidentally on extraction
• Screw the extractor onto the flywheel and extract it as shown in the picture

Specific tooling
  020467Y Flywheel extractor

Inspecting the flywheel components

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

Refitting the free wheel

• Make sure the freewheel faying surfaces are in good condition.
• Thoroughly clean the free wheel to remove LOCTITE residue.
• Degrease the threading of the holes in the free wheel and the clamping screws.
• Apply the recommended product to the end of the screws.

Recommended products

Loctite 243 Medium-strength threadlock
Medium Loctite 243 threadlock

• Fit the freewheel on the magneto flywheel making sure that the ground side is in contact with the flywheel itself, i.e. with wheel Seeger ring visible.
• Lock the six clamping screws in criss-cross fashion to the prescribed torque.

Locking torques (N*m)
Screw fixing freewheel to flywheel 13 - 15

• Oil the free wheel "rollers".

Refitting the flywheel magneto

• Remove the freewheel retaining plate indicated in the picture
• Remove the transmission gear and the freewheel

• Insert the free wheel on the flywheel as shown in the picture
• Then refit the flywheel with free wheel and transmission gear

• Using the special flywheel lock wrench, tighten up the flywheel fixing nut to the prescribed torque
• Refit the retention plate

Specific tooling
  020627Y Flywheel lock wrench

Locking torques (N*m)
Flywheel nut 94 - 102

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 2 screws to the prescribed torque.

Locking torques (N*m)
Starter motor screws 11 - 13

See also: