p200
Post Reply    Forum -> Not-So-Modern
Author Message
nothing at all
Joined: 14 Nov 2008
Posts: 9657
Location: westla
Fri Nov 21, 2008 6:45 am quote
hey ya all,i have a stock barrel and head and corner machine shop to play with.i would like to open the barrel cylinder and ports.when done i would like to match that with my stock 24 carb and crank.how much can i oversize.where and how much on the ports.thanx
Addicted
1978 P200E, 1963 GS 160
Joined: 31 Aug 2006
Posts: 663
Location: Decatur, GA
Fri Nov 21, 2008 7:23 am quote
According to vespamaintenance.com here are the oversize specs:

Cylinder Barrel
Type: Cast Iron
Bore Sizes: 66.5 mm (2.618 in)
1st Oversize: 66.7 mm (2.626 in)
2nd Oversize: 66.9 mm (2.634 in)
3rd Oversize: 67.1 mm (2.642 in)

You should be able to buy the larger pistons, rings and stuff from spd, scooterworks, etc.
Rallies Europe 2016   Vespa Wasp Pin Badges   Scooter Parts Company
Post Reply    Forum -> Not-So-Modern
[ Time: 0.1360s ][ Queries: 25 (0.0396s) ][ Debug on ]