Hi guy have just installed yd25's kit n all went good and we took our time in setting up the old chains with the silver and yellow link on the front chain and we marked everything we took off with white pen and put everything back together then hit the key and the motor just turned over as if it no fuel so primed it then once it looked like it was going to start there is a loud clunking noise so immediately stopped , to me something is out of timing does anyone have any ideas