Smaller "Polaris" R/R?

[Guest]

Working on this little 250. I think I just decided that it's now going to be "built" rather than just put back together. I love the sh775 system , and even put one in my BMW F650.
Pis it too big for a 250? I read that you need to select an R/R based on engine size and saw warnings about too small, but not for too big. Can I use an R/R designed for a 900cc machine on a 250??
or is there another option that I should look into?

thanks!

[posplayr]

The relation to engine size is that if your engine stays cool (smaller engines probably run cooler) then it can absorb the SHUNT R/R stator heat without allowing the statro to burn up. Electrically it doesn't matter what size the motor is.

If teh SH775 is too big, for such a small engine you might try the Honda R/R. They are SHUNT (6 wire) but tends to not burn stators and fits in the ORM locations.

[MatBirch]

Thanks- I just did a little more digging on Electrosport. They list the same unit for all GS bikes of the era. I'm thinking I'll just grab another Polaris unit. I can find a spot for it.
Which Honda unit were you thinking of? I have a couple of used ones on hand from 80's VF bikes.

[posplayr]

See gs stator in my signature

[Nessism]

The relation to engine size is that if your engine stays cool (smaller engines probably run cooler) then it can absorb the SHUNT R/R stator heat without allowing the statro to burn up. Electrically it doesn't matter what size the motor is.

If teh SH775 is too big, for such a small engine you might try the Honda R/R. They are SHUNT (6 wire) but tends to not burn stators and fits in the ORM locations.

Get the SH775 since it's one of the best R/R's going these days, but not for the reason of reducing engine temps, because it won't.

[Who Dat?]

I think the 250 uses the same stator setup as the other GSes, right up to the 850, so there is no reason to look for a smaller R/R.

[JJ]

Get the SH775 since it's one of the best R/R's going these days, but not for the reason of reducing engine temps, because it won't.

You just couldn't resist the urge to stir that pot, could you?

[Nessism]

You just couldn't resist the urge to stir that pot, could you?

Not stirring anything. Providing facts. I did back to back testing and proved that the R/R type doesn't affect oil temp.