Hallo all! (Ciao tutti: italian version...)
I'v got a project on going since 1 year: realize a Dirt Track from my XS400 '78.
I'd increase power (torque) , to have this I'd rebore it from 69=391cc to 74=450cc.
So I need new sleeves, quite easy to do, but first problem is to find pistons quite similar....!
Do anyone know if SR250 pistons have same dimension (eccept bore, obviously) of xs?
Standard SR250 piston is 73.5 that is 440cc by using original crankshaft...
Anyone tried first?
I'v got a project on going since 1 year: realize a Dirt Track from my XS400 '78.
I'd increase power (torque) , to have this I'd rebore it from 69=391cc to 74=450cc.
So I need new sleeves, quite easy to do, but first problem is to find pistons quite similar....!
Do anyone know if SR250 pistons have same dimension (eccept bore, obviously) of xs?
Standard SR250 piston is 73.5 that is 440cc by using original crankshaft...
Anyone tried first?