KR-1S.co.uk Forum

been reading a few previous threads on diffrent forums ie, rgv,nsr etc and theres a fair bit of chat about using a diffrent ignition aswell as ignition rotor, one using a modified moto x unit. i dont mean aftermarket tackle i mean something off an existing model. actually i beleive mj was experimenting with a similar setup some time ago. does anybody know if the kr crank taper is the same as any other mx fitment, my most obvious hope would be a kx crank? my goal would be less rotating mass, large saving compared to a std lightened f/wheel, better ignition settings for race conditions given the fact that std setup has economy in mind as its a road bike resulting in, hopefully extra tourque that a stock unit couldnt match as the stock ignition on the kr was a weak point years ago resulting in some bikes refusing to rev out/above 10500rpm in some cases! im aware of the zeeltronic but a trip to the local mx breakers could find the basic bits needed at a fraction of the cost(although the zeeltronic is good value) and i would feel happier about experimenting with something that cost 50-80 quid rather than a nice new unit at over twice as much! making a stator plate with slotted holes wouldnt be to hard and i dont think converting it to power 2 cylinders would be either with enough research about ignition timings/electronics etc. maybe even make something with tps etc as i think mj was on about experimenting with this also, would be very intrested to learn how far you got mark and what problems you encountered, read that topic a wile ago now and have'nt heard since? possibly even mix/match smaller f/wheel of mx with existing stator making a suitible mounting plate with variable static advance, taking into account the smaller distance between the revolution of the pickups on the f/wheel? im not certain but can imagine that a n f3/kit f/wheel is similar(ish) in size to a motorcross rotor from what ive heard(kit) and seen(mx)? any previous experience/tips or ideas from someone with experience in one off ignition setup would be highly appreciated, thanks to anyone who may help, cheers matt

Crosser and Road tapers are smaller than KR.

I have a shed full of Crosser rotors I bought hoping to find one that fitted.

which rotors did you try mark? i guess you had no joy with finding a match then, do you reckon it would be possible to have a rotor(smaller diameter/weight) machined up for a realistic price? the reason i ask is ive thought about possible reasons why no one has tried it? i would guess that they cant be bothered and make do with std which is sensible but over in oz i think, the lc racers have very diffrent rules allowing t-z- -top end/carbs etc and one bloke has made his own race ignition which includes a rotor off a moped! there will probably be a few tapers the same but will be on bikes you never even think of! wouldnt suprise me.

what about scooters, doubtful I know, but there are a few use the same flywheel puller. I havent seen any scooter stuff myself so clueless.

interesting though if something did turn up.