Can anyone fill me in on the LS650 ignition timing curve?  What is the advance at idle?  What is max advance & rpm?  Does this flame thrower retard the timing when the throttle is WFO?

Ever try running one with that timing plug removed?  Does it throw oil out or stay fairly dry?  Maybe I can try marking the shaft and shooting that with a strobe light.  Should at least be able to see if the timing changes as speed increases.  Some sort of vacuum retard (similar to Harley)  would be a nice touch.

No diode needed here.
The faster I'm going
The more retarded I am.
The results are the testimony.

verslagen1 wrote on 03/28/18 at 12:24:38:



AND, it does so with GUSTO !

Does the LS650 have a timing curve?  YES

I fabricated a timing wheel assembly so that I could check ignition timing and also mount a degree wheel without tearing into the case.  I don't have a tach but I can testify that advance at idle is 3 degrees BTDC and full advance is 27 degrees BTDC.  That motor is really spinning at full advance, I would guess 4 or 5 thousand rpm.  When running, Zero oil coming out with this rig.  When you shut it down, you get maybe a teaspoon out over about an hour with the bike on the side stand.  Solution, shut down, lean bike to left for about a minute, then remove the rig.  Oil mess is minimal.

Here is a picture of the individual parts:

Here's a pic of the rig with the ignition timing wheel installed:

Here's a pic of the degree wheel installation.  To mount a decent size degree wheel you need to remove the footpeg but that's pretty easy.  Anybody remember Paul Dunstall?

Cool!

You might have better luck spinning things over by using the countershaft pulley.....instead of the rear wheel.

You can use a big socket and breaker bar on the countershaft pulley, and your face will be right up near the degree wheel.