I have a Collari and i accidentally put too long a plug in and popped the string on the 2nd tug. Once i realized my screw up, i switched plugs and fixed the cord, but it had pulled a HUGE hole in the inside of the pull start... many many knots had to be tied in the string to fill that hole. It all went down hill from there. now the spring is all messed up, i'm using the string from my .21, and it won't recoil right. Also, it seems like air bubbles are being forced into my fuel line from the engine.... it seems like a great engine, i just can't keep it running long enough to finish the break in. i'm just venting... sorry. I just want to know where to get a new pull start and where to get that beautiful header..... thanks for the patience and help.