CDI questions
- Thread starter Demi
- Start date
farmerj
Platinum Level Site Supporter
I'm wondering the same thing. I did try a spare from the '06 on my 2018 when i was first working on starting issues, it plugged right in and ran fine. But I didn't let it run for long, as I didn't want to burn something up if you aren't supposed to do that!
One of my wonderings is whether I could utilize map settings on my new bike by using the old CDI (which supports the map switch).
So a "bump" here to see if anyone has run an older cdi on the 2018-19 bikes, or knows if there are potential issues from doing so?
(F5)
Gold Level Site Supporter
I certainly have no idea but one sanity test would be to run a strobe timing light on the bike at idle. You want to make a mark with felt pen so you can be sure it lines up a point on the flywheel and on the plate.
Then swap cdi and see if they still line up at idle.
If they don't then the base advance is different so I'd go no further.
If they do then I'd use a degree wheel to find 15degrees and 20 degrees. Rev it out and see that it travels to 15 degrees or less. If it is nearer 20 degrees it is danger. The rest of the curve was safe on earlier bike so should still be safe.
Unlike your car it will easy start, then advance immediately and slowly retard to about 15deg for peak power. Then retard again to shut it down. You will need to be careful to observe that with above test in mind. A clip on tacho would answer that peak power revs would be circa 15 deg.
If you need degree wheel setup advice ask..
Then swap cdi and see if they still line up at idle.
If they don't then the base advance is different so I'd go no further.
If they do then I'd use a degree wheel to find 15degrees and 20 degrees. Rev it out and see that it travels to 15 degrees or less. If it is nearer 20 degrees it is danger. The rest of the curve was safe on earlier bike so should still be safe.
Unlike your car it will easy start, then advance immediately and slowly retard to about 15deg for peak power. Then retard again to shut it down. You will need to be careful to observe that with above test in mind. A clip on tacho would answer that peak power revs would be circa 15 deg.
If you need degree wheel setup advice ask..
