so last season the splines on my shift shaft on my 71 cb500 stripped out so to last the last month and a half of the season i just tack welded the shift lever onto the shaft. not that much later did i start leaking oil out of my shift shaft hole on the left crank case which ended up on my chain which sprayed onto my rear tire = NOT good. i ordered up a new shift shaft, shift lever, shift shaft oil seal. last night i finished up changing everything, new shaft, lever and oil seal and put on a new clutch cover gasket. she started right up and ran great and shifted smoother than ever but when i pulled her into the garage i put a piece of tin foil under my bike to make sure it wasnt leaking. low and behold its still leaking big time right out of the shifter. i went back and looked at the blow up of the left crank case to make sure i wasnt missing anything and from what i saw i wasnt. i know theres a different little section on the case for where the oil pump is... does that get a gasket? there wasnt one on there that ive ever seen nor do i see one on a parts list. im just really frustrated at all this. i just wanna rideee. HELP ME!!