Cordless Drill Starts

Discussion in 'Motorized Bicycle General Discussion' started by 5-7HEAVEN, May 3, 2017.

  1. 5-7HEAVEN

    5-7HEAVEN Well-Known Member

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    Has anyone used a cordless drill to start their engines?
    I think it'd be an novel way of awakening your horse(s).
     
    #1 5-7HEAVEN, May 3, 2017
    Last edited: May 3, 2017
  2. crassius

    crassius Well-Known Member

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    on the 2-stroke, trying to start at the nut on the rotor can strip the threads off the crank
     
  3. wrenching4fun

    wrenching4fun Member

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    Had to do it after installing freewheel and breaking my pull start. It worked over and over, but it chewed up the nut and if I had any throttle, once the engine started it would unscrew the nut. Ended up buying a few spare nuts, without any more problems. Not that practical to rely only on drill start because if you engine dies and you don't have your drill with you, you're screwed.
     
  4. 5-7HEAVEN

    5-7HEAVEN Well-Known Member

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    Thanks for responding, guys.
    I wonder if I could use a super long nut, then wire-wrap the bottom part of the long nut to one of the flywheel's fins.
    I could weld a small washer onto the nut, at its base. After torquing the nut on, I'd wire-wrap it to a fin. There'd be enough exposed nut for the drill's socket to spin.

    I'd want to carry a small cordless screwdriver on my bike.

    Thoughts?
     
    #4 5-7HEAVEN, May 6, 2017
    Last edited: May 6, 2017
  5. Tony01

    Tony01 Member

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    Friend and I have toyed with the idea of an impact drill in a holster....

    Actually it was in response to a drill friction drive bike that did 50 for about 5min... just be a cool way to start except if your battery dies....
     
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  6. 5-7HEAVEN

    5-7HEAVEN Well-Known Member

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    One can always carry a spare battery.
    My uncle mentioned to me of needing a disengaging flywheel nut and quick reflexes.
     
  7. 5-7HEAVEN

    5-7HEAVEN Well-Known Member

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    Troy Bilt products have their JumpStart technology.
    Basically cordless drill starts.
    Researching......
     
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  8. 5-7HEAVEN

    5-7HEAVEN Well-Known Member

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    www.killerrc.com/roduct/power-starter/

    It's not a perfect fit. The pull start is made for 54mm/23-29cc engines. The key part is the item which bolts onto the flywheel. That and the driver is all I need.
    If necessary, I'll buy one and reverse engineer the thing..weld
     
    #8 5-7HEAVEN, May 17, 2017
    Last edited: May 17, 2017
  9. WallHaxx

    WallHaxx New Member

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  10. 5-7HEAVEN

    5-7HEAVEN Well-Known Member

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    Thanks for the information, friend.
     
  11. 5-7HEAVEN

    5-7HEAVEN Well-Known Member

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    #11 5-7HEAVEN, May 18, 2017
    Last edited: May 18, 2017
  12. wrenching4fun

    wrenching4fun Member

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    Hope the jump start feature bumps the power of that 12 Volt drill. It takes every bit of torque from my 18 Volt DeWalt to start my 66 HT.
     
  13. 5-7HEAVEN

    5-7HEAVEN Well-Known Member

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    We'll see. If it doesn't, WalMart should take it back.

    Unsure if thlis drill's shaft is long enough to clear the flywheel fins and pull start housing.

    Update:
    I bought the TROY-BILT cordless starter for $50.03 online. I picked it up from Wal-Mart Mart today.
    We'll see if it works on my engines.
     
    #13 5-7HEAVEN, May 18, 2017
    Last edited: May 23, 2017
  14. 5-7HEAVEN

    5-7HEAVEN Well-Known Member

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    After reading more about Craftsman and Troy-Bilt's JumpStart Technology, I realized the Troy-Bilt starter would probably not work for me.
    The snout is too short, in case it needed to clear the pull start housing.

    So I returned it at WalMart and bought this driver at Loewe's:
    https://www.lowes.com/pd/Troy-Bilt-JumpStart-Electric-Engine-Starter/3415794
    This driver has a one-way bearing. When the engine starts, the bearing prevents the engine from overdriving the drill and its connecting parts.

    I'll use an ordinary 18v cordless drill and carry it on the bike.

    Hopefully, I can find one that looks like a long flashlight.
     
    #14 5-7HEAVEN, May 29, 2017
    Last edited: May 29, 2017
  15. 5-7HEAVEN

    5-7HEAVEN Well-Known Member

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    #15 5-7HEAVEN, May 29, 2017
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  16. 5-7HEAVEN

    5-7HEAVEN Well-Known Member

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    I hope this works.

    If it does, I'll convert my Tanaka-powered Snow Tiger to cordless drill starts.

    Sometimes, when police are around or if I have to maneuver slowly around people, I turn my engine off.

    This way, I can restart without leaving my seat.

    Besides, it's so obvious it's a motorized bicycle, when I have to yank on the pullstart.

    I hope this works.
     
  17. 5-7HEAVEN

    5-7HEAVEN Well-Known Member

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  18. Dan

    Dan Staff
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    Really cool and like where you guys are going with this!

    I have played with this but never got past initial, just using a drill and a purpose made socket.

    But was thinking a sprag clutch arrangement. Have the starter above, below, in front or behind depending on the engine and a chain. With a solar panel so as not to rob the engine of any umph. (technical term) With an emergency way to wrap a pull rope. Might be mentioned in one of the very old threads.

    A sprag clutch is a one-way freewheel clutch.

    It resembles a roller bearing but, instead of cylindrical rollers, non-revolving asymmetric figure-eight shaped sprags are used. When the unit rotates in one direction the rollers slip or free-wheel, but when a torque is applied in the opposite direction, the rollers tilt slightly, producing a wedging action and binding because of friction. The sprags are spring-loaded so that they lock with very little backlash"

    source; https://en.wikipedia.org/wiki/Sprag_clutch
     
  19. 5-7HEAVEN

    5-7HEAVEN Well-Known Member

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    Dan, yes the driver attachment I bought from Lowe's has a sprag clutch.

    I'm hoping everything bolts on.
     
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  20. Dan

    Dan Staff
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    So cool, 57!

    Can't wait to see what ya come up with.
     

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