Looks like it could have been the reeds. I installed a new set of Boyesen power reeds and it runs much, much better now. I ran it for 15 minutes and it would kick over after that on the first kick. I have a new S/A pipe coming today and want to install it before I finish out the jetting and finalize it with a long test ride. BTW - before I installed the new reeds I checked the old ones and they were sitting off the reed block by about 1/2 to 1 cm.