my 79 340 jag wont get to the high gear put new belt on yesterday has good deflection takes off but not riding to top of primary or bottom of secondary. i have parts sled with both clutches and want to know which one needs switched .or if too big a gap in the primary could cause this problem if so how can i fix that.need help have alot of snow and cant ride.

lift track off the ground both clutches engage perfect.