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Author Topic: CR250 RE Jetting  (Read 1102 times)

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Offline Boyracer

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CR250 RE Jetting
« on: January 01, 2011, 05:01:05 pm »
I was wondering what jetting people could have on their CR250,s? My RE is on it's last oversize so I changed the main jet to a 58  think it was, too long ago but it was a bit bigger.
Also where should the air screw be please ?
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Re: CR250 RE Jetting
« Reply #1 on: January 02, 2011, 10:32:06 am »
As far as air screw is concerned it should generally be about 3/4 of a turn out but start it up, screw it in and start turning out till it runs at its best at idle. Most of my bikes seem to run bigger main jets due to (as far as I'm concerned) the type of fuel we have to run these days. I always put a big main in at the start and work back till it runs well.
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