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Help Honda CD250U Air Filter

Discussion in 'Honda 250cc Twins' started by m33ksy, Mar 9, 2018.

  1. m33ksy

    m33ksy Member

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    Hello all and thanks for having on board your forum.

    I was hoping someone may be able to help me source an Air filter for my Honda CD250U, I can't seem to find any in-stock online anywhere I was wondering if there is also alternative at all? Honda pt no. 17211-KW4-000 if it helps.

    Many thanks for any help.

    Regards
     
  2. Midnightlight

    Midnightlight Member

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    I couldn't find any through my usual sources unfortunately. But as i found with my 1983 VT250FD i had to make my own filter, using some filter foam and some lightly coating it with air filter oil it comes up a treat.
     
  3. m33ksy

    m33ksy Member

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    Thanks for your swift response midnightlight, I like your idea does this involve then keeping the paper outer and replacing foam inside? Sorry I've not actually taken apart a filter before
     
  4. Midnightlight

    Midnightlight Member

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    In my case it involved cutting all the paper filter material out and then packing that area with foam. I'll try to find a pic of another member who i copied the idea off.
     
  5. m33ksy

    m33ksy Member

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    Oh ok great sounds interesting, I'd be keen to see the pic please if you can find it. Thanks again
     
  6. Murdo

    Murdo The Good Doctor Staff Member Premium Member Ride and Events Crew Contributing Member

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    Remove the paper part and cut the foam about 3/4" (20mm) bigger all round the edge. Glue together to make a cylinder and when dry saturate with foam airfilter oil (as used in dirt bikes) and squeeze out excess. Slip the sleeve over the metal frame and your good to go.
     
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  7. m33ksy

    m33ksy Member

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    Sounds easy enough, I'll give it a go .thanks all for your help :D
     
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  8. m33ksy

    m33ksy Member

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    So, with the below filter would it be a case of replacing the paper part with foam and glueing it around the top and bottom edges or am I missing the point?

    Thanks

    IMG_20180311_190732.jpg IMG_20180311_190725.jpg
     
  9. m33ksy

    m33ksy Member

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    Or can you buy filter paper like that currently in use and glue it in?
     
  10. Midnightlight

    Midnightlight Member

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    Cut it out and get some air filter foam and make up something similar.
     
  11. risky

    risky risky

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    might sound stupid but wash it in laundry detergent/powder and allow to dry for several days and will come up as serviceable. have done it.
     
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  12. GreyImport

    GreyImport Administrator Staff Member The Big Cheese Contributing Member

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    yep hot soapy water can sort it ... I did it with the FZR filter and its still going strong after thousands of Ks .... just leave it in the sun a day or 2
     
  13. my67xr

    my67xr Bike Enthusiast Staff Member Premium Member Contributing Member

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    Do you know anyone with an ultrasonic clear, put it in there for a while, should come out like new.


    Get the dimension's and see if any of these are close, then cut and shut it to make it work. use some windscreen urethane to glue the element into your frame or whatever you come up with.

    https://www.ebay.ie/itm/Uni-Air-Fil...426990?hash=item48a667352e:g:ImMAAOSweM1aO7iW

    https://www.ebay.ie/itm/air-filter-...980952?hash=item5203050d18:g:LDEAAOSwuHdaVODN

    https://www.ebay.ie/itm/Premium-Air...041830?hash=item43f816a2a6:g:VGUAAOSwx2dYEoX0

    https://www.ebay.com.au/itm/K-N-Ova...296238&hash=item3b02a8241d:g:3IoAAOSwb9BapUCa
     
  14. m33ksy

    m33ksy Member

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    Wow thanks! The cleaning method sounds the quickest and easiest but I thought (probably wrongly) that the filter was paper and water and paper don't go too well together does it not damage the filter?
     
  15. Murdo

    Murdo The Good Doctor Staff Member Premium Member Ride and Events Crew Contributing Member

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    If left to dry completely its ok.
     
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  16. Joker

    Joker Coming and going... Premium Member Contributing Member

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    Washed and reused myself as well... works fine. Just need to warm it up in the sun to loosen the crap on it before washing with warm water.
     
  17. m33ksy

    m33ksy Member

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    Sweet, I'll give a go then, nothing to lose really I guess, If I mess it up then I'll go down the foam route.
     
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  18. risky

    risky risky

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    i washed mine in petrol then after shaking most liquid out then used detergent and dried.put back in when dry and is going strong.you have nothing to lose.
     
  19. m33ksy

    m33ksy Member

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    Well I've washed the filter in detergent it hasn't fallen apart and it smells great :D just letting it dry by the dehumidifier now for a good few days as it won't dry outside I'm the snow very effectively.
     
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