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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
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.
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Post Reply    Forum -> Not-So-Modern
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