Bench timing a Polaris 700

[jsledder]

I've got a 700 Liberty on the bench doing some cooling upgrades and am wondering if there is a way to time these things while on the bench? I've always just marked where the stator comes off and put them back on in the same spot, but i'd like to check this one and the other one I have to work on.

Any tips???

They are the '97 220 motors.

 

[NapaMatt]

..

Hmmm .. Not on the Bench..

Only way i know.. is have them running at 8,000.. With timing light..

Look at the screw marking to get "about where it goes"


Be safe... if there is another way ... please do tell...

 

[jsledder]

I had an email from someone saved on my computer for years that showed how to use a degree wheel and do this and that.... but I put it somewhere so I could easily find it the next day, not 4-5 years later.

What timing should I be looking for on that motor? And it's to be checked with a light at 8k R's????

 

[rocket]

There isn't any real way to "time" the motor on the bench. The degree wheel can only be used to verify the accuracy of the factory timing marks on the flywheel (which can sometimes be inaccurately placed). As far as timing goes, that depends on which CDI you have on it. Polaris changed the curves several times and the XC and RMK both had their own unique curves. "Dynamic" timing is typically specified at some low RPM level where the ignition curve is basically flat, so the timing isn't very sensitive to RPM (and it's safer to measure).

 

[jsledder]

Found this on the SLP website, will be attempting to follow these instructions.

The marks on my flywheel are gone, so that could make things interesting....

 

[rocket]

Found this on the SLP website, will be attempting to follow these instructions.

The marks on my flywheel are gone, so that could make things interesting....

If you marks are gone, then following the SLP procedure is the way you'll need to proceed. Even with factory marks, it's a good idea to verify them. Sometimes I've seen them a couple degrees off, but have heard of guys finding them WAY out of sorts.