Description
primary drive Repair Kit
Italian made
for Vespa 160 GS, SS180 Rally 180-200, PX125-200 E Lusso '95>'98 MY/'11,P200E,PX200E,Lusso, Cosa 2 125-200, Cosa 1 200
Ø 106mm, Øi 58 mm,
12 spring(s), 2 discs,
plain/curved
From 1995 piaggio changed there clutches on smaller model vespa's to the larger Cosa 2 type clutches, at the same time changed there primary dive to this stronger cush drive.
(A cush drive is a part of a motorcycle or scooter drive-train that is designed to reduce stress from engine torque damaging other components during gear or throttle changes)
Contained within the primary drive of the input shaft (christmas tree)assembly of your VESPA motor are springs. These spring units are arranged so that the smaller springs operate inside the larger springs for a stronger resistance to the forces created within the drive train. If these springs are worn or even broken, acceleration will be interrupted and effected with a jerky action similar to clutch failure. The only remedy is rapid replacement.
Primary drive repair kits include outer and inner shock absorbing springs, outer and inner cover plates and a set of rivets to hold it all together with the primary drive and the smaller cog cluster of the input shaft assembly.
We have repair kits available for every model of VESPA, from the V1 through to the PX'11.
Conclusion: The primary drive assembly should be inspected and/ or replaced during any major motor overhaul. Negligence will cost, in time, lots of money and riding fun!
TOP-TIP: Always install and replace ALL of the smaller primary drive components during each major service. The securing plates on both sides of the primary drive, input shaft holding nut, tab washer and also the input shaft needle bearings should all be replaced for save and enduring use of your motor. Last but not least do not forget to order fresh gearbox oil, gaskets and all relevant oil seals!
OEM Numbers (for the purpose of comparison) 077370 - 078853 - 077371 - 005765 (PIAGGIO)
Models this fits
