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rpscusa
10-21-2003, 08:29 PM
Simple question
How do you adjust the idle on a 86 250R ???


:doh:
Red Rider
10-22-2003, 12:36 AM
It all depends on what brand or series carburetor your 250R has. If it still has the factory Keihin PJ series flat slide carb, simply turning the choke knob will adjust the idle.
rpscusa
10-22-2003, 05:34 AM
Thanks alot. I have the stock carb.

I have yet another question, I bought this 86 250R last week.
pretty good shape. The guy I bought it from says it has the 300 big bore kit in it. Is there any way by just lookin at it too tell ??
Red Rider
10-22-2003, 02:02 PM
None that I know of, but I'm unfamiliar with those. Anyone else? Anyone? Anyone?
Red Rider
10-26-2003, 06:23 PM
RP, if your cylinder is a factory Honda unit that has been punched out to 300cc's, then there is no way to tell for sure without measuring the cylinder volume.

However, if it is an aftermarket cylinder, like the ones from CT Racing or ESR, it might have the cylinder volume molded into the side of the cylinder from the casting process. I've never taken a close-up look at one of those cylinders, so I don't know if it has that feature. The aftermarket cylinders usually look quite a bit different than the stock Honda units though. Let us know what you find out.