ok i did the head gasket on my EX and put it all back together and timed it to what i thought was right and it would turn over and sort of fire but not run, so i retarded it one tooth on the cam sprocket after seeing that it was out a tooth wiht all the marks lined up so i did that and doubble checked everything and it did the same thing
with it at TDC lined up with the "T" mark and all the cam lobes facing down and the marks on the sprocket in line with the head and then i put the tensioner on and it goes out or somthing i'm not dumb i've done a heap of 2 strokes and this is my 3rd fourstroke, first EX job andi have a book and i read it thought about 3 times and still cant quite get it right
any help would be great!

sry for the long post and spelling errors