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Davy123
  • Rank:Platinum Member
  • Posts:278
  • From:Scotland

Date Posted:04/24/2015 6:54 PMCopy HTML

I have just fitted a new electronic ignition my C&J mx ...race day is sunday....ill post results...

RetroRacer #1
  • Rank:Silver Member
  • Posts:67
  • From:New_zealand

Re:electronic ignition

Date Posted:04/27/2015 8:23 AMCopy HTML

How did it go Davy? Im just in the process of converting to a total loss system running a 7.2v battery!
Davy123 #2
  • Rank:Platinum Member
  • Posts:278
  • From:Scotland

Re:electronic ignition

Date Posted:04/27/2015 5:59 PMCopy HTML

..Bike starts first kick hot or cold...sounds very different ..loads more power and very responsive ...my other xl racer runs a total loss system with a dc coil and a 7.2v remote control car battery ..i tried it without the flywheel but was too revvy ..a lot better with flywheel . the new electronic ignition uses the standard flywheel too ..the kit comes with a coil and cdi box as one unit,and a bottom stator complete with mounting plate..easy to fit and 2 wires to plug in ...


 

RetroRacer #3
  • Rank:Silver Member
  • Posts:67
  • From:New_zealand

Re:electronic ignition

Date Posted:05/04/2015 4:42 AMCopy HTML

Thanks for that Davy. What make did you go for the CDI kit - is it one from Electrix World in the UK?

I was just about to remove the flywheel from my bike (still on the quest of shaving weight) but you have made me think twice now. I believe though that you can fit TL 250 flywheel which are a few pounds lighter but still keeps a bit of mass - might be an option! 

Davy123 #4
  • Rank:Platinum Member
  • Posts:278
  • From:Scotland

Re:electronic ignition

Date Posted:05/04/2015 9:41 AMCopy HTML

yes the one from electrix world...i would still try it without flywheel...really good on a dry track...not so good on typical scottish rainy wet slippy tight track!..the tl flywheels are lighter..ive tried for years to get one.. still looking..what have you done to make it lighter ?..in the past ive used cr250m yokes,husky forks and front wheel,they match the yokes perfectly,and are way better than honda ones,wheel spacers alloy,every bracket off the frame,lightweight seat,hollow axles,alloy sprocket,drill front sprocket,alloy engine plates...and drill anything you can :P
RetroRacer #5
  • Rank:Silver Member
  • Posts:67
  • From:New_zealand

Re:electronic ignition

Date Posted:05/06/2015 6:11 AMCopy HTML

Similar things to you minus the husky front end. Obtaining Husky stuff in NZ is virtually impossible (very few imported in the 70's) and buying via ebay from the US now costs a fortune in freight. But I believe the Husky forks alone are 2kg than CR 250 and stronger so I am still tempted! My latest experiment is fitting an XR 200 rear hub (with cush drive) - 3.5 kg lighter over all! A bit of a faff to get it all to fit and have yet to test it; I am little concerned that it might be a bit weak on braking - but hey its a four stroke...........

Thanks for the tip on the flywheel - I will see how it goes without it. Will probably see if I can get a 250 flywheel also and see if I can spin it on the lathe and lighten it up some. Actually I have an XL 175 rotor - it might fit also! Something to do in the garage over winter.

Davy123 #6
  • Rank:Platinum Member
  • Posts:278
  • From:Scotland

Re:electronic ignition

Date Posted:05/06/2015 3:35 PMCopy HTML

if you send me your email address ..i'll show you what im building for pre 70 class ..
XLerator #7
  • Rank:Silver Member
  • Posts:60
  • From:USA

Re:electronic ignition

Date Posted:07/18/2015 6:44 PMCopy HTML

Reply to RetroRacer (05/06/2015 2:11 AM)

Similar things to you minus the husky front end. Obtaining Husky stuff in NZ is virtually impossible (very few imported in the 70's) and buying via ebay from the US now costs a fortune in freight. But I believe the Husky forks alone are 2kg than CR 250 and stronger so I am still tempted! My latest experiment is fitting an XR 200 rear hub (with cush drive) - 3.5 kg lighter over all! A bit of a faff to get it all to fit and have yet to test it; I am little concerned that it might be a bit weak on braking - but hey its a four stroke...........

Thanks for the tip on the flywheel - I will see how it goes without it. Will probably see if I can get a 250 flywheel also and see if I can spin it on the lathe and lighten it up some. Actually I have an XL 175 rotor - it might fit also! Something to do in the garage over winter.


Was the XR200 rear hub change successful?  What did you have to do to fit this to your XL?  I like the idea of saving weight.

Thank you.

GDXL #8
  • Rank:Bronze Member
  • Posts:20
  • From:Australia

Re:electronic ignition

Date Posted:07/24/2015 7:36 AMCopy HTML


I'll throw my 2 bobs worth in....     I built a 412 motor for last years race season. Rode it with the stock flywheel/ignition setup and with a total loss setup. I much preferred the total loss setup.A little less torque with the total loss system but alot more power and it revs up quickly....also less engine braking when you back off the throttle... which I like. I also think (and it's just my opinion) that no flywheel takes some pressure off the gearbox.
The bike ran well enough to holeshot about half the races for the season and I ended up in second place overall for the year. 
I played around with a couple of different cush drive rear wheels but ended up using the stock wheel due to running out of time.I plan to try a kush rear sprocket in the future.
Davy123 #9
  • Rank:Platinum Member
  • Posts:278
  • From:Scotland

Re:electronic ignition

Date Posted:07/25/2015 5:04 PMCopy HTML

..the 350 is a lot better without the flywheel as it a heavier crank and longer stroke than the 250 ....i believe that some oz guys run the 250 on dope with good results...loads more torque seemingly ..


Go soothingly on the grease mud ... as there lies the skid demon! ...





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