I had the bike out today for a ride. I had a nice open stretch in front of me sooooo I wound her up and went thru a few gears. I noticed that while under hard acceleration in 2nd and 3rd the bike felt as the clutch slipped for a split second a few times. The bike is an 85. It does not jump out of gear when accelerating wot in first or any gear. It does have the DD mod and the clutch plates are good. If it is the shift segment how hard and how expensive is it. Also how long should it take to repair. I hate to miss riding time.