I need my ignition source coils and charging coils checked iv tested them myself but need confirmation on the test,as i cant move the bike i need to take the alternator flywheel off and need a 27mm puller left hand thread so i can get at the coils to remove them.Does any body know where i can get one(iv searched the web) prefer a pattern one as i think a OM will be expensive and im only going to need it once i hope, or has anybody got one i could use for 5mins.