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Clubroom => Tech Talk => Topic started by: evo550 on September 08, 2011, 06:50:14 pm

Title: setting idle on cr 250 ???
Post by: evo550 on September 08, 2011, 06:50:14 pm
O.K.,
I must be going mad, doesn't a pre '90 cr 250 come with an idle screw? 1987 to be exact.
How is the idle set...please all you Honda guru's.
Title: Re: setting idle on cr 250 ???
Post by: JohnnyO on September 08, 2011, 06:52:57 pm
Does anyone have a 2 stroke motocrosser idling? They don't come with an idle screw..
Title: Re: setting idle on cr 250 ???
Post by: evo550 on September 08, 2011, 07:07:15 pm
Does anyone have a 2 stroke motocrosser idling? They don't come with an idle screw..
Yep, This is about the only one that I have come across that doesn't allow for some kind of engine speed adjustment when throttle is backed off full. I don't want it to be able to tick over for hours at a time, but some run on when the throttle is shut and clutch pulled in. It currently stops dead as a doornail  when the slide bottoms out. I have never come across a bike that does that before.
Title: Re: setting idle on cr 250 ???
Post by: mick25 on September 08, 2011, 07:14:12 pm
They should have a idle screw buts thats 2 bangers for you,all you can do is adjust the cable but then you have no free play on the cable ???
 you dont see many 2 strokes idleing on there own steam at the start gates
Title: Re: setting idle on cr 250 ???
Post by: mick25 on September 08, 2011, 07:17:07 pm
The rm 250 83 models dont have a idle scew as well  ???
or change to a later model carb evo55o
Title: Re: setting idle on cr 250 ???
Post by: Snowy 76 on September 08, 2011, 07:45:29 pm
Have a good look around the choke Knob, I think the flat side on my 125 is adjusted by turning it.
Title: Re: setting idle on cr 250 ???
Post by: Hoony on September 08, 2011, 08:00:21 pm
the SnowMan is right.

both my 86' and 85' models have idle adjustment by turning the choke knob, and i turn the 500 up so it "does idle" helps me from the compression lock into corners if i don't get on the clutch quick enough.
Title: Re: setting idle on cr 250 ???
Post by: JohnnyO on September 08, 2011, 08:17:38 pm
the SnowMan is right.

both my 86' and 85' models have idle adjustment by turning the choke knob, and i turn the 500 up so it "does idle" helps me from the compression lock into corners if i don't get on the clutch quick enough.
Yeah you guys are right, i just had a look at my '89 CR. I was thinking of my '84 RM250 that doesn't have an idle screw.
Title: Re: setting idle on cr 250 ???
Post by: evo550 on September 08, 2011, 09:09:27 pm
Thanks guys, I'll give it a crack tomorrow.