I have an 03 cr 125, it popped out of 2nd into nuetral, and now wont find any gear. When you operate the gear lever by hand, it feels as though it is picking up 1st and 2nd, but there is no drive at all. The lever gives no feel through 3 4 and 5. Iv pulled out the clutch, and it looks fine to me.....any ideas on what it is most likely to be???