transmission shaft

Hi, I have to open the lower casing of my engine. I've just figured out that the double raw ball bearing of the transmission mainshaft is out of order. The first ball raw,from the clutch side, has an obvious clearance. I'm just wondering if that's possible to open only the lower casing and...

hi there guys, im looking for used parts to buy, if anyone got any. looking for those: 2 x XS650 Primary drive sprockets Transmission shaft from a xs650 found a cheaper way, and a guy that did that says it works just fine. def cheaper then buying from gary? but can still cost around...