HOWTO: Upgrade the CDI on a 2006 Yamaha Jog ZR
So as some people in the world may know, I live in Japan and have a much-beloved 2006 Yamaha Jog ZR, which I bought in Sept. 2006 not only as a means of transport (rush hour traffic jams mean nothing to me now, as I zip between cars, between lanes, and in front of stopped cars so I'm always the first through the intersection), but also as a "fixer-upper," as there is an almost endless array of custom parts available for these bikes in Japan (and elsewhere--but they all begin in Japan). The legal speed limit for a 50cc bike is 30km/h, but even stock this went over 60, at which point it hit its RPM limit.
The limit can be bypassed by replacing the CDI unit, which is what I did in the following HOWTO on Flickr.
As I make various customizations to my scooter, I will be photographing the process for any other English-speakers who might be coming in my wake. The instructions for these upgrades can be terribly brief, and always in Japanese, with a few very poor diagrams. By photographing my progress and detailing the problems I run into, I hope that others in Japan (or Oz or NZ, where this bike is also sold), or just other people who have Jog-family 50cc scooters around the English-speaking world can have a point of reference when converting their putt-putt grocery-getter into a roaring (okay, whining) slightly-faster grocery-getting BEAST.
Provided the bike doesn't get stripped of its custom parts some night, which is what happens to these bikes a lot of the time. =(
So, without further ado, here is the first HOWTO I penned on replacing the CDI unit:
Comments
3 comments postedCan you find out from the locals if there is a derestricted CDI for the the above model, current CDI is a 8 pin but the the chassis number is 5SU6-010 which is where the issue is.
The CF Posh CDI model that should suit is model number 493061 NOT model 494060 which have worked in other late model Jogs. I cannot get confirmation that the 493061 is a 6 pin or 8 pin CDI and if it suits the above chassi number.
If you can help please reply back.
Cheers,
Wont you void your warranty by replacing the cdi box?
It's only a one-year warranty, and if replacing the CDI didn't void it, something tells me the high-speed pulley, weight rollers, custom speedometer, high-flow air filter, and expansion chamber exhaust did the trick.
Also, I, like the other main contributor to this blog, believe firmly in tinkering.