speedfight back fires on full revs

shaun1978 · L Plate Warrior Joined: 02 Feb 2009 Karma :

hi can any one help me my speedfight 2 backfires on full revs. iv put a aluminium 70 kit on my bike and its a very revy kit and on full revs back fires. is this my stator plate or is it the standard cdi unit because they are restricted to around 10.000 revs and thats when the bike starts to play up what im going to do is put the 50 kit back on and see if it still does it.can ant one give me advise and does any one no the wireing diagram for the aci 100 cdi unit
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shaunz scoots

Finglonga · World Chat Champion Joined: 27 Jul 2004 Karma :

If it has a rev limiter on it will backfire as the sparkplugs power will be cut and the fuel will go into the exhaust and ignite as soon as the revs drop and the power is restored to the coil.
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Andy Sez....
F.Y.Y.F.F.