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Thread: Carb for 250R

  1. 11-20-2006, 12:37 AM #1
    ATCR250R's Avatar
    ATCR250R
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    Carb for 250R

    I am collecting parts for my air cooled 250r rebuild and I am going to be modding the engine and was wondering if a good choice for a carb would be my old dirtbike one. It is off a 1995 CR250R and I believe its a PJ 38mm flatslide. Please correct me if I am wrong. Here is a pic.



    Any details in using this will be very helpful. Thanks!
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  2. 11-20-2006, 01:49 AM #2
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    GPracer2500
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    Quote Originally Posted by ATCR250R
    ....off a 1995 CR250R and I believe its a PJ 38mm...
    Yep, 38mm PJ
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  3. 11-20-2006, 02:02 AM #3
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    NOS_350X
    NOS_350X is offline Trikein' Away Teaching quads a lesson
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    That would be alot of carb for the air cooled engine, probably better off going with one of the old cr 250 carbs, or the 125 carbs.
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  4. 11-20-2006, 05:24 AM #4
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    Derrick Adams
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    Thats a great carb, but I have to agree that it may be a touch big. 36mm is ideal for your application. BUT if you've already got it, might as well give it a try!
    2007 YAMAHA YTZ450 went to a great home RIP Sam

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  5. 11-20-2006, 03:52 PM #5
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    Macs
    Macs is offline Formerly barry_mann Got the holeshot
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    i would not go any bigger than the 36 PJ. I was running one on mine. It did well but i kept having a leaking issue, i couldnt get it to seal for nothing. i put the stocker back on for now
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  6. 11-20-2006, 04:23 PM #6
    ATCR250R's Avatar
    ATCR250R
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    Yeah, I think I may still try it next year when the engine is built. It might do alright once the porting and other mods are done but if not I will switch to the PJ 36. Thanks guys!
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  7. 11-20-2006, 06:17 PM #7
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    willcamach
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    i hate to hijackthis thread but im currently trying to setup a 36mm pj on my and i cant figure out what jets i should start with, my trikes not ported at all, just rebuilt and its got a full exhuast, boyesen reeds, a reed spacer, and a k&n Clamped onto the new carb so no airbox. any clue on where i should start with the jets. any advice would be great thanks.
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  8. 11-20-2006, 06:21 PM #8
    Yamahondaman's Avatar
    3WW Star-Yamahondaman
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    i used "TWO" 1995 CR Carb's on a Banshee once ...GO FOR IT !!!!
    1985-1989 Two-Fitty Honda's L@VE BIG Air !!! i dunno bout them LOUD Air Cooled Thing's ?
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  9. 11-21-2006, 12:26 AM #9
    ATCR250R's Avatar
    ATCR250R
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    Alright I guess I am going to keep the carb for now for the project. If it is too big when I do get around to having the loud beast runnin then I will switch it! Thanks again!
    ATCless at the moment...

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