How many rollers between timing marks & help with starting.

[Carter]

could someone tell me as the title says, how many rollers between timing marks on a gk76a. also having a starting problem....it'll bump off fine and run but for some reason ain't starting on the starter motor, it's a nats nacker from wanting to though....new battery (fully charged) , cdi, plugs, plug caps, starter clutch and carb cleaned, even a load test done on the starter and it's fine. don't want to run it as a total loss on the track but might as well if i can't use the bloody electric start!.....any ideas?

[Austyn]

I seem to recall it's 20 links...there is a bandit service guide on here somewhere...I used it to rebuild my engine and it was useful.