Roys CRF MOd

Discussion in 'Japanese Mini's' started by Killpatrickyum, Jun 2, 2013.

Mini Dirt Bikes

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  1. May 24, 2014 #161

    mini mullisha

    mini mullisha

    mini mullisha

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    bike looks sweet, but to me it looks like it need a longer swinger? but im just being picky haha
     
  2. May 24, 2014 #162

    Killpatrickyum

    Killpatrickyum

    Killpatrickyum

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    Yeah need a shorter shock I'm thinking then it will sit nicer
     
  3. May 24, 2014 #163

    Karlos247

    Karlos247

    Karlos247

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    This bike feels so nice and tight to ride. A reel smooth steerer. Handles awesome. I could've done laps till the sun come up at the 50% ranch. Thanks for letting me have a fang Roy
     
  4. May 24, 2014 #164

    Killpatrickyum

    Killpatrickyum

    Killpatrickyum

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    Anytime brother cheers for the comments I'm pretty stoked with it
     
  5. May 26, 2014 #165

    Karlos247

    Karlos247

    Karlos247

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    If I was you I'd work on the carb/ manifold set up to get it crackin down low
     
  6. May 27, 2014 #166

    Fiddy Rider

    Fiddy Rider

    Fiddy Rider

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    Does a longer manifold give top or bottom end power?
     
  7. May 27, 2014 #167

    8r3nd0

    8r3nd0

    8r3nd0

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    Longer/smaller dia intake for more bottom end, shorter bigger dia smoother manifold for more top.
     
  8. May 27, 2014 #168

    Killpatrickyum

    Killpatrickyum

    Killpatrickyum

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    I'd say top end it's a continuous struggle to achieve a good bottom end tune , next I'm thinking to try one of my Taki cams , adjustable timing and possibly a klx110 carb
     
  9. May 27, 2014 #169

    8r3nd0

    8r3nd0

    8r3nd0

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    Bbr cam, smaller carb
     
  10. May 27, 2014 #170

    my67xr

    my67xr

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    usually the other way round ? especially for drag racing etc
    long runners for top end, short runners for better bottom end, port sizes are usually matched to engine cc's to keep the velocity high.
     
  11. May 27, 2014 #171

    8r3nd0

    8r3nd0

    8r3nd0

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    Yep my bad knew you'd jump on me Craig cheers mate, upside down, back to front haha
     
  12. May 27, 2014 #172

    Fiddy Rider

    Fiddy Rider

    Fiddy Rider

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    Does anyone make a decent range of length/diameter manifolds? That arn't super expensive? Cheers
     
  13. May 28, 2014 #173

    my67xr

    my67xr

    my67xr

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  14. May 28, 2014 #174

    8r3nd0

    8r3nd0

    8r3nd0

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    By gas flowed/ported to they mean they will polish it up and port match, how would they port match when they only have the manifold, and isn't polishing the inside of the manifold a bad thing because fuel won't atomize or some **** I remember hearing that it's only one side that you polish not the other?
     
  15. May 28, 2014 #175

    gottagetacheaperhobby

    gottagetacheaperhobby

    gottagetacheaperhobby

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    i thought gas flowed meant it had been flow tested on a bench... i guess they could get the buyers inlet port dimensions and port the manifold to its best flow potential while matching the inlet port size the buyer gives them.
    whether they do that or not is another matter as i haven't bought one from them to know.....
     
  16. May 28, 2014 #176

    my67xr

    my67xr

    my67xr

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    yeah it's just a basic dedagging, port matched etc
     
  17. Jan 16, 2015 #177

    TomaszBurcon

    TomaszBurcon

    TomaszBurcon

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    Any updates mate? :confused-smiley-013 :hidesbehindsofa:
     
  18. Feb 16, 2015 #178

    Killpatrickyum

    Killpatrickyum

    Killpatrickyum

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    bikes finally running good with the stupid TB setup only took a year or two hehe, got myself a nice +3 SANO swinga now just need to get a fox float and she will sit nice in the rear then shes pretty much finished, shame I don't get to ride much anymore tho ;(
    10432460_10204081119091936_8911788035321070489_n.jpg
     

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