OK, new to the forum, any help would be appreciated. Rebuilt the top end of my blaster. the old piston blew into peices and locked up the kickstart. I cleaned out the metal shards and I put everything back together. Put on a new clutch cable also which seems a little tight but seems to work. When I start the bike it idols fine but when I try to shift into first it doesn't seem to do anything. At one point, it seemed to half engage? It rolled slowly forward but I couldn't shift into another gear. How do I diagnose what the problem is and how would I go about fixing it.