Just a few words of caution about small block clutches: they are single plate, adjustment is critical, never let one slip once engaged, parts are expensive and difficult if not impossible to find. Here's my sad story; for my wife to have an easier time with the clutch lever on our 2004 Breva I installed an adjustable lever that let the lever sit closer to the handle bar thus reducing grip distance, this was a poor choice, apparently the clutch started slipped, I was not aware/told. Spring of 2014 I rode it across town to warm up for an oil change etc. and wasn't sure I was going to make it the 8 miles home. The small block clutch surfaces are basically not machinable. The pressure plate/flywheel is readily available, the clutch friction plate is also, the ring gear/clutch cover/friction surface is quite a bit harder to find. I have since found two used ones and will select the best one to use after their arrival.
Do not let that small block clutch slip!!!!
repost from earlier an topic