v8-914
XS650 Enthusiast
I bought a used salvage motor. I am rebuilding it now, but parts are becoming an issue. It appears that Big Bore kits are non-existent for the 366 as are 2nd oversize pistons. Mine are 75.25 mm and ring gap is .027. My new, used engine is S650 212123 and it shows to be a 73 TX-650. What's the deal?