Any old-school mechs in CHCH?

[pete376403]

1.1 sports didn't have a kick start fitted as stock.

unless the big-bore kit included high dome pistons, that and the base gasket would equalise each other out so there wouldn't be a substantial change

Big bore kit will give higher compression, all other things being equal. Remeber compression ration is swept volume (sv) + compression (space above the piston) volume (cv) / compresion volume (cv).
The big bore kit gives a greater swept volume, but the compression vol remains the same so the Cr is now higher. The Cr might only change a little but some engines are pretty close to the ragged edge already when running pump gas.

[R1madness]

Gidday mate, We can look at it in the New Year if you can wait. Give me a ring at the shop on MONDAY between 10am-4pm (its xmas hours) 3829503. Cheers
Ian