NRG 140cc twin engine in progress.

Discussion in 'Scooter Projects' started by MARSH, Sep 15, 2013.

  1. Stevep

    Stevep Well-Known Member

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    4,951
    Yeah, don't i just know that problem:confused:
    Understandable with the flywheel magnets though, high voltage from the mig welder will degrade the power of the magnets. Nice to know you got it sorted though.
     
  2. scubabiker

    scubabiker NITROJUNKIE

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    any progress mate?
     
  3. MARSH

    MARSH Whooooo!

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    Not to bad, still having issues with ignition. Have ordered two new pick-ups to try, as soon as I rev it up it start's to miss fire, tested pick-ups and found different Ohms readings??
     
  4. scubabiker

    scubabiker NITROJUNKIE

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    hmmm maybe they are causing interference with each other? could be worty running wasted spark (can you do that on a 2 stroke?) and see how that goes?
     
  5. MARSH

    MARSH Whooooo!

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    I have thought about that, I'm thinking it's not creating enough power to run two cdi's? It start's on the button first time every time, tick's over great, come to pull away and it's missing and running on one cylinder! I need to check the stator again to see what I can do.
     
  6. scubabiker

    scubabiker NITROJUNKIE

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    have you tested the coils? its worth checking that. how differnt are your resistances in your 2 pickups?
     
  7. MARSH

    MARSH Whooooo!

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    One at 105.6 ish and 125 ish, they should be within limits but who know's! I now got 2 new pick-ups, I'll change the stator as well.
     
  8. MARSH

    MARSH Whooooo!

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    A little update, Have cut up two stator plates to make it with two ignition coils and it work's a treat! It goes like f*ck and want's to wheelie off the throttle, just need to jet it a bit more, rollers/clutch etc. It's like a light switch, a bit flat then revs pick up and off it goes. Might need to fit primary gear kit up as well as the secondary it's got in already! 2015-07-03 23.13.05.jpg 2015-07-03 23.13.18.jpg I need to rewind the coils to get some power out to charge battery but that should'nt be to much trouble.
     
  9. scubabiker

    scubabiker NITROJUNKIE

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    nice! video soon?
     
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  10. MARSH

    MARSH Whooooo!

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    I've cut and remade the outside pipe to fit a touch closer! 2015-08-27 07.26.08.jpg 2015-08-27 07.26.46.jpg 2015-08-27 07.27.05.jpg 2015-08-27 07.26.27.jpg
     
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  11. ReverendSkipper

    ReverendSkipper Member

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  12. scubabiker

    scubabiker NITROJUNKIE

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    Would you consider selling when its done?
     
  13. mrhappy

    mrhappy Member

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    Hi mate Any ideas on how to make a wheel spacer for drum brake twin ? Or leave it and of set engine ?
     
  14. MARSH

    MARSH Whooooo!

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    It would be stronger leaving the wheel where it is or you could machine a wheel down to the hub, then machine a flat surface on the outside, have a ally block made up between that and your second wheel then machine the inside of a second wheel then bolt it together?? Use a long "snug"steel bar in the splines to keep it lined up.You would need a long shouldered hub nut to use a Tsab bracket or the like?? Also you will need TWO ignition pick-ups on the stator to run the cdi's! that is one thing I have learnt.
    Yours sincerely, "the fucking twat". ;)
     
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  15. scubabiker

    scubabiker NITROJUNKIE

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    any more updates on this?
     
  16. MARSH

    MARSH Whooooo!

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    To be honest I've been dragging my arse, I've put the front panel on, air filters but not much else. I know I need to get it sorted but I 've got other stuff on the go all the time!
     
  17. scubabiker

    scubabiker NITROJUNKIE

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    i know how that is, my drag car has sat untouched for nearly 2 years.....
     
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  18. mrhappy

    mrhappy Member

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    any up dates
     
  19. MARSH

    MARSH Whooooo!

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    The question is would you want to buy it? Or I could sell you the joint idea so you can build your own!!
     
  20. scubabiker

    scubabiker NITROJUNKIE

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    strict build laws here in norway, its easier to buy an already modded bike instead of going through the process with all the forms and applications
     

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