thanks for that Doc,ive got 2.2 ohms but when playing with a brush cutter spark module and victa coil wjth it plugged into the black/yellow stripe wire even kicking over super fast i got spark some times when i shifted to the tellow/white wire i got a fat clicky/click sounding spark so might shift this coil into the faulty coils position as they seem to have the same bolt spacing as a cheep fix to get it going,i got it off epay for the rm125m pipe new retread back tyre and new chain/spockets for $150 and will use the chassis for dirt track with a rm125s motor as i dont like long travel bikes for sliding on