Im a nobbie ... engine troubles, idle,lean

Discussion in 'Norm's 2 stroke repair center' started by isthisreal1991, Nov 12, 2011.

  1. isthisreal1991

    isthisreal1991 New Member

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    i have the 66/80 cc slant head, about 1400 miles running 30:1

    ive always really had the problem of after 4 mins of running and its warmed up i cant WOT i can pull throttle to 60 % but thats about it after that it just boggs... also i am running lean and cant seem to adjust the mixture i have the upgraded carb with no primer it has one idle screw and 2 small screws im assuming for the mixture.. i dont know how to tinker and i also dont know how to adjust the needle in the carb.... please help... ohhh also i can never get an idle messing with the screw on the side of chain does nothing.... ugh please help i dont know if it matters but im upstate NY 1000ft above sea level and its around 30-50 degrees recently... oh and also i have a tight seal on the head and im getting oil comming out of the front of head and spark not alot but noticable after 15 miles
    .xx.
     
  2. biknut

    biknut Well-Known Member

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    If the oil is coming out of the spark plug hole, that's not too big a deal. If it's the head gasket you'll need a gasket, and a torque wrench to install it.

    The CNS carbs run lean, so you'll need to either get a bigger main jet, or drill out the one you've got.

    http://motorbicycling.com/f34/omg-i-have-tune-cns-help-30169.html
     
  3. isthisreal1991

    isthisreal1991 New Member

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    Thanks for the reply I apreciate... I dont have a drill so I can't drill it any other ideas
     
  4. Greg58

    Greg58 Well-Known Member

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  5. Al.Fisherman

    Al.Fisherman New Member

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    Mill the head would also help. How to is here....
    https://docs.google.com/document/d/1GcesQihc7-mm3hJGf7UPiqOaRXZ8ekUT99QUZq2qXXE/edit
     
  6. isthisreal1991

    isthisreal1991 New Member

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    I cant get ahold o a drill till i get paid next week but how do i drill it out haha im sorry like i said i am a little bit of a noob but i want to ensure i do it correctly cant afford to render it usless its my ride to work haha
     
  7. biknut

    biknut Well-Known Member

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    You don't need a drill, just the drill bit. You can turn the drill bit with your fingers, or plyers.
     
  8. Greg58

    Greg58 Well-Known Member

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    The little drill set on e-bay is only $6.25 shiping included, will work good on brass jets. I bought one kinda like this on amazon, be sure to mic the bit to make sure you are using the correct drill. Small bits look about the same.
     
  9. isthisreal1991

    isthisreal1991 New Member

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    Okay i didnt know that lol good to know so im sorry to bother you but could you explain to me how to do it , like what size to use and how to get the jet out? i'd really appreciate it!!
     
  10. biknut

    biknut Well-Known Member

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    Start with about a #66. If that's still too lean try a #64
     
  11. isthisreal1991

    isthisreal1991 New Member

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    thank you ill try and figgure out how to get the jet out on youtube
     

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