I just bought my bike in May and am looking for some advice. The clutch does not seem to be disengaging properly. There was a lot of slack in my clutch lever so I adjusted the cable to make it tighter. Now that is is tighter, when I squeeze the clutch lever and drop into first, it applies power instantly before I release the clutch lever. It kills the bike. This just started happening within the last week. Any advice would be greatly appreciated.