hi, im new to the forums and don't know much about quads i have to problems. 1. I recently bought an old act 110 for £10 of a friend and need help starting it. The pull start has gone so i have been trying to bump start it. Ive checked some of the obvious things such as the spark plug and ive cleaned out the carburetor and checked it isnt blocked, and that the fuel is getting through. At first when i tried to start it it was definetly compressing and sounded good, although it still didnt start. prob no 2. I got home from school a couple of days ago and tried to start the quad, we pushed it down the hill then put it into gear but insead of compressing the back wheels just locked up and skidded, i tried the next day and it did the same. If i shift to another gear it is just about possible to push it (with ALOT of effort) but makes a horrible loud crunching noise every time the wheels turn round. Also the little disc where the pull start goes use to spin round when the quad was being pushed in gear but that appers to have seized up as well.

Any help would be greatly appreciated. (plz dnt get to technical cos im ony a kid)

Thanks.