cxy

I blew up my crank because the rist pin came out and hooked on the side port. Ugly. I found this 1979 RZ-400 and removed the crank. The cylinders are 1/2" longer but the pistons are the same size. I would like to used the stroker crank but don't want to use the jugs off the RZ because they are air cooled and have different Exhaust connection. Is there a plate you can put under the jugs to extend them? any Ideas?

Does anybody know ho to remove the spring from the shock on the fronts. I've compressed the spring but don't see how to remove it.?