OK well if i gun my moped sometimes I will get a rough grinding from my transmission then i have to let off the gas and put it back on to get it to go normal. This also seems to happen going up dirt hills sometimes. Well it happened to me yesterday and I wanted to make sure I got up the hill so I didnt let off the gas just let it grind for a sec. Stupid of me, well now the transmission stays in first gear instead of going to neutral so now my moped wont idle without giving it gas and holding on the breaks(but it will still shift up to second). I took off the cover yesterday and there were no obvious problems although I have never looked at the insides of a transmission before :) I put it back together and put oil back in it. I was hoping maybe someone knew what was wrong with it and a way to fix it.