This happens often when Im shifting in the lower gears with high acceleration.  Are the gears worn or am I twisting the throttle to soon? Also when in traffic and the light turns green, the cagers take way to long to get going so im on the clutch several seconds until I can go without hitting the car infront of me. Will this burn it up?

So you are in 1st and rev it up and slip the clutch and it goes into neutral?