OzVMX Forum

Clubroom => Tech Talk => Topic started by: mitcho on November 18, 2014, 02:46:47 pm

Title: RT2 Yamaha retro fitting CDI?
Post by: mitcho on November 18, 2014, 02:46:47 pm
G'day, 
I am restoring a Yamaha RT2 360 trying to update the ignition to pointless..as well as avoid the nasty kick back... Have heard DT400 ignitions may bolt on?  any advice
Title: Re: RT2 Yamaha retro fitting CDI?
Post by: shelpi on November 18, 2014, 02:56:47 pm
put variations (key words)on the subjest up in the search box and search, I know there is alot of useful information on the subject already  ;)
Title: Re: RT2 Yamaha retro fitting CDI?
Post by: Freakshow on November 18, 2014, 04:19:51 pm
Just fit a PVL, you want a rotor, backing plate and a NR1097 stator copmplete kits are about $400. Set and forget.
Title: Re: RT2 Yamaha retro fitting CDI?
Post by: Tim754 on November 18, 2014, 05:12:39 pm
Have heard DT400 ignitions may bolt on ?    Yes easy as, straight fit up, stops heaps of kick backs too!. :)   Finding a DT360A or DT400B ignition set that still works .....  umm Good luck with that....... :(  Tim754      Freaky above has given you the go ;)
Title: Re: RT2 Yamaha retro fitting CDI?
Post by: mitcho on November 18, 2014, 05:15:47 pm
Great advice all,  thanks alot..
Title: Re: RT2 Yamaha retro fitting CDI?
Post by: Iain Cameron on November 18, 2014, 06:44:26 pm
Not just DT400 will bolt up but all of these as well IT 250 77 , IT 400 76, 77 , 78 . YZ 250 up till 77 . YZ 400 up till 78 , 465 80 & 81 . also DT & MX 360 \ 400's .Iain
Title: Re: RT2 Yamaha retro fitting CDI?
Post by: crossedup2 on November 18, 2014, 08:04:12 pm
Find the 1977 on DT250 / 400 and you'll get the full lighting coil with similar plugs to go straight into your two power supply  plugs. 1977 /1978 IT 250 /400  systems work also but you only get a single wire power supply (about 20-25W). Still works for lights but no battery charge circuit. I think you can fit the DT lighting coil in the IT but not sure about the width of the rotor. Backing plates are all the same for DT/IT/YZ 1977/78. Rotor for YZ is narrower (lighter) than the DT but not sure about IT ones.
You'll also need the cdi unit. (YZ/DT/IT will all work just make sure the wires are still in good condition at the base of the CDI box.) Everything is pretty straight forward to plug and play.

I run a 1978 or 79 DT250 flywheel and YZ400 cdi on my RT1 race bike. I'm about to start restoring a DT1-F which will run a DT250 ignition also. RT1 has great spark and no kick back (yet!)
Good luck finding one out there, we are all chasing them for our current or next projects.
Peter B
Title: Re: RT2 Yamaha retro fitting CDI?
Post by: jimg1au on November 18, 2014, 09:50:43 pm
you must get an ignition with an outside flywheel.