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  1. #1

    ADA Billet Head question

    I plan on putting on an ADA head (42mm) on XLL1200 (Thanks Addicted).. With this mod, is there anything else that I must do?? I have read a bit about VF3 reeds being suggested with milled head, but are the required? The compression should be about 150.

    Thanks


  2. #2
    My son (mohawk man) jeffsntx's Avatar
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    It is always recomended that you cut the ADA head into 3 individual pieces to prevent water leaks caused by minor differences in deck height. I will see if I can find pics of my old ski that had an ADA head on it.

  3. #3
    My son (mohawk man) jeffsntx's Avatar
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    http://greenhulk.net/forums/showthre...t=17856&page=2

    Here are the pics of my build. Post number 15 has pics.

  4. #4
    Im guessing a machine shop has to make the cuts... If I am unable to cut, would a compression test tell me if I have leaks?

  5. #5
    My son (mohawk man) jeffsntx's Avatar
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    I would think that Mike would have a way to cut it. The problem with them is that they leak water to the outside when they arent cut. The small diameter o-rings that they use wont seal very well unless the deck height on all 3 cylinders are VERY close.

  6. #6
    cheatin' piston popper addicted's Avatar
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    sooo, just chop it into 3 pieces between each cylinder?

  7. #7
    Crash Test Dummy Smitty's Avatar
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    Quote Originally Posted by addicted View Post
    sooo, just chop it into 3 pieces between each cylinder?
    Yup..... had a ADA head on my XLL, with VF reeds on it. The SOB will really pull then.

  8. #8
    If your not doing something, its hard to screw up. stlouisramsfan's Avatar
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    Quote Originally Posted by Smitty View Post
    Yup..... had a ADA head on my XLL, with VF reeds on it. The SOB will really pull then.
    good to see ya back smitty, all well?

  9. #9
    Crash Test Dummy Smitty's Avatar
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    Still in Miami, the pay is great, but I'm missing The Bug yet again...

  10. #10
    Dirty Sanchez's Avatar
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    if you engine has an oem head on it currently I would sweat it. just put the dam thing on. starts it up and run it with out the seat and check for external leaks the pull the plugs and check. like i said if you had an oem head on the engine prior chances are you'll be ok. the problem usually starts when people starts to piece togethertop end, not cleaning surfaces properly and reusing base gaskets / screwing up there dech height. in stall reeds, re-jet carbs, wave eater clips, advent cdi. you need a pet tach asap to read rpms, seriously re-jet prior to running and get e-z tune screws. read rpm's and my have to re-pitch

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