Honda CRM 250 Help?

Discussion in '2-Stroke Discussion' started by Masu, Jan 14, 2002.



  1. Masu

    Masu Rookie DRN Member

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    Hi guys, I'm over here in Japan, my buddy has a CRM 250, I know it is not exported to the USA, but I think it is grey imported to the UK, and maybe elsewhere?

    He has the stock carb on it and is looking for a little more power, I found a Kehin PWK 38 mm carb, would this work on the CRM 250? I just recently swapped a 28 mm to a 35 mm, on my 97 KDX 220SR and the power increase is really great!

    The carb is not new, but the guy says the bike it came off of (older CR) was running great, except it got crashed :)

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    Some pics of the carb for your viewing pleasure :)

    Cheers!
  2. morph

    morph Rookie DRN Member

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    crm 250

    we get them here in limited numbers.in one of our local mags they tested one with a MUGGEN (i think thats how you spell it)kit and they said it increased performance.I'd be careful playing with it as they are way more advanced than a MX bike.
  3. Buzz Bomb

    Buzz Bomb Rookie DRN Member

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    What exactly is a CRM250? I'm curious.:think In what ways is it more advanced than a standard MX bike?
  4. morph

    morph Rookie DRN Member

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    they look sort of like a early 90's cr and are a street registed trail bike.
    the engine use's honda's radial combustion tecnology where at high revs the spark cuts out and it run like a diesel. it runs very hot to utilise all the power available from the fuel giving better economy. i think also the power valve is electricaly controlled.but no there not CR beaters in the speed stakes.more precise info will be on the net some where on a honda dealer site.
  5. red 450

    red 450 Rookie DRN Member

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    Does anyone have a microfiche or service manual for the CRM 250? Some guy's think that the transmission could possibly be put in the CRF 450 to make it a wide ratio. Any help on this would be greatly appreciated. If you have a web site address that shows this kind of information it would be great. Even if it's in Japanese we could get it figured out.
  6. Masu

    Masu Rookie DRN Member

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    My buddy has a service manual and a parts list cataloug, we could scan it, but my computer that the scanner is attached to just suffered a HD meltdown, so I cannot do it very soon. I'll put it on my list of things to do :)

    Cheers!

    BTW what year etc of CRM?
  7. red 450

    red 450 Rookie DRN Member

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    Masu, I would greatly appreciate it if you could find the time to scan the CRM service manual. A detail showing the transmission and gear clusters is what we are after. Also if there is any numbers identifying which service manual you have so I could order it would be helpful. The web site that is working on this transmission swap is www.thumpertalk.com click on CRF 450. Thank you
  8. Masu

    Masu Rookie DRN Member

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    No problem, I actually have two manuals, one until the early 90's, and one one generation after, not the newest genration, but the next oldest.

    My computer with the scanner is almost fixed :)

    Cheers!
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