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daytona 190 valve clearance

Discussion in 'Ask the Tech Masters???' started by china911, Feb 14, 2015.

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  1. Feb 14, 2015 #1

    china911

    china911

    china911

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    valves need adjusting on the 190

    current inspection

    .0003 in -.004 ex


    what are you guys running

    .005 in - .007 ex or .005 in .005 ex ?
     
  2. Feb 14, 2015 #2

    my67xr

    my67xr

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    I went in between the 2x recommended setting's, i'm running .006" on both the inlet and exhaust.
     
  3. Feb 14, 2015 #3

    china911

    china911

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    thanks mate
     
  4. Sep 21, 2018 #4

    AntNZ

    AntNZ

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    I know this is an old thread but still very relevant as these are the go-to engines nowadays.
    Factory specs for valves are 0.05-0.07 mm! Not inches, which is 0.0020-0.0028 inches!

    Could be a typo from craig(my67xr) but doubt it.

    So what clearance are the Daytona guys actually running?
     
  5. Sep 21, 2018 #5

    Cordogs

    Cordogs

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    Are you sure mate? 004” - 006” (thousands of and inch) is a pretty common clearance for minibike engines.
     
  6. Sep 21, 2018 #6

    AntNZ

    AntNZ

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    Yeah I know cordogs but had the owners manual right in front of me and it def says those specs I posted.......
    I just got my first 190 and bike runs good with those specs but had to drop pilot jet to a 39 from a 42, pe28, cos was way too rich on idle, plug was black and dripping wet!
    For now I have had to use my stock lxr/klx port header with 2 crush gaskets to run it in.
    No air leaks anywhere, all has sealed good.
    Just wondering whether the stock 32mm header and prob a bit of protruding gasket are making it run rich or the valves being set too tight??
     
  7. Sep 22, 2018 #7

    Cordogs

    Cordogs

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    Good to know man, I’m almost ready to fire my 212 up, still waiting on a few parts atm. I’ll double check mine before I do.
    Also its a bit of a relief to hear the 28mm could flood it, I bought the Yoshi 28mm DD for mine and was a bit worried it might be too small. [emoji1417][​IMG]


    Sent from my iPhone using Tapatalk
     
  8. Sep 25, 2018 #8

    AntNZ

    AntNZ

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    Have you bought a 212 or big boring a 190 you already have?
    From my understanding a smaller/ restrictive pipe will make the engine run rich!??
    Certainly the case for me.
    Engine runs clean all the way through the rev range but can def tell that it is held back from the stock pipe.
    I'm not riding it again till I get a pipe more suited to the 190, in the process of organising a ycf sp3 full system with power bomb for it, hope I can get it to fit in an lxr frame.
     
  9. Sep 27, 2018 #9

    Cordogs

    Cordogs

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    Bought the 212 Fsm model.

    My pipe turned up today, shouldn’t have any dramas with restrictions. [​IMG]


    Sent from my iPhone using Tapatalk
     
  10. Sep 28, 2018 #10

    AntNZ

    AntNZ

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    Haha, that won't annoy the neighbours much!!
    What size-o/d header you using?
     
  11. Sep 28, 2018 #11

    Cordogs

    Cordogs

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    Going to build a custom header, probably 40’ish mm. It’ll be about 200mm long.
     

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