OzVMX Forum

Marque Remarks => Yamaha => Topic started by: ola_martin on November 04, 2011, 12:17:07 am

Title: SR/TT500 ignitioncoil
Post by: ola_martin on November 04, 2011, 12:17:07 am: I have a SR500 engine in an aftermarket frame, and are having some issues in placing the secondary coil. I think I've read here that the XT/TT one will work just as well and are a bit smaller? Does anyone know an even smaller one that will work??
Thanks
Ola
Title: Re: SR/TT500 ignitioncoil
Post by: ola_martin on November 04, 2011, 02:24:45 am: Would a new coil work, like this Kokusan from a modern 4stroke mx?

(http://img.frbiz.com/31544387_s/gx125_ignition_coil.jpg)
Title: Re: SR/TT500 ignitioncoil
Post by: Frank M on November 04, 2011, 05:27:20 am: don't think so.

SR-Ignition is CDI-based, XT-Ignition has contact breaker points.
Title: Re: SR/TT500 ignitioncoil
Post by: curly001 on November 04, 2011, 11:16:29 am: I've been running my XT motard with SRcdi it is running the standard XT coil. It hasn't missed abeat in 6 years with this setup. I know the electronic gurus will tell you the ohm resistance is all wrong but it works.
Title: Re: SR/TT500 ignitioncoil
Post by: GMC on November 04, 2011, 04:58:31 pm: Quote from: Frank M on November 04, 2011, 05:27:20 am
don't think so.

SR-Ignition is CDI-based, XT-Ignition has contact breaker points.

That was the early models, the last of the TT / XT's also had CDI
Title: Re: SR/TT500 ignitioncoil
Post by: Frank M on November 04, 2011, 10:38:58 pm: ok, my fault. Here in Europe the XT was only available with contakt breaker points. I've heard about the CDI-XT (4R9) for the US-Market.