MotoPed Softail with 86cc 4-stroke 4-speed semi-auto

Discussion in '4-Stroke Engines' started by KCvale, Oct 22, 2014.

  1. KCvale

    KCvale Motorized Bicycle Vendor

    It is such a joy to build something complicated with the best of parts.
    I'm this --> <-- close to finishing up a MotoPed for me.

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    The MotoPed bike frame is actually a motorcycle frame designed to support pedals.
    http://MotoPed.com
    $2,000+

    It comes with everything but an E22 'Honda mount' compatible engine in one giant box filled with other boxes of parts, the wheels, and the frame base.

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    We painted parts and such so it took a couple of days to get it to a 'rolling frame'.

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    I went with the Chinese 86/88cc 147FMF Honda knockoff 4-stroke with a kick-start and 4-speed semi-auto from PPCmotor for $300.

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  2. KCvale

    KCvale Motorized Bicycle Vendor

    (...continued)

    Engine Specs:
    Single cylinder, 4-stroke, 2 valves

    Bore x Stroke: 47mmx49.5mm

    Measurements: 17" x 10 1/4" x 8 1/4"
    Displacement: 86cc
    Compression Ratio: 9.47:1
    Carburettor: racing carburetor
    Ignition: CDI, 12 volt, permanent magnetic stator
    Maximum Power: 6 hp@ 7,500 rpm
    Maximum Torque: 4.25@ 5,500 rpm
    Gears: 4-speed, semi-auto, 4 DOWN.
    Idle: 1,500 RPM
    Final Drive: 14 tooth #420 front sprocket included (we have other sprockets on sale too!!)
    Lubrication: 0.8 liters, 10W/30 4-stroke motorcycle oil, pressure and splash
    Fuel: Unleaded

    The stock kick-starter won't work (hits the JS gear), we are working on that today but otherwise she's done, lubed and fueled just waiting for a way to start it.

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    ~$2,500 all said and done is steep for most DIY MB builders but on the other hand 5 years from now it should still be worth $2K.
     
  3. Barnfresh

    Barnfresh Member

    Looking good KC! Mines ohhh so close to being done also. Just ran into a little snag so maybe another week and I'll be riding.
     
  4. KCvale

    KCvale Motorized Bicycle Vendor

    Cool Barn, I look forward to seeing yours as mine is basic, but now completely done!

    We just cut a piece of kickstand and used it to offset the kickstart.

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    It's a big bike, 110# wet and 36" tall seat.
    Here it is compared to the Surly Instigator which is a big itself.

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    It's awkward to shift but for just riding around you can leave it 3rd and it'll run you without shifting.
     
  5. Barnfresh

    Barnfresh Member

  6. Slogger

    Slogger Member

    That's a really cool motorized bike, man. Do you have any trouble getting on the shifter without footpegs?
    It's weird seeing bike pedals there. You riding that one on the street?
    Ruh roh, Raggy, I hear that iron door clanging shut on ya.. :grin5:
     
  7. Timbone

    Timbone Active Member

    Very nice!
     
  8. Slogger

    Slogger Member

    Awesome. It's the Gawdzilla of motorized bikes. Unleash the Kraken!
    Love the exhaust system, too.
     
  9. KCvale

    KCvale Motorized Bicycle Vendor

    Thanks guys, it was fun to build but came about in an odd way, I bought that 86cc engine with no idea what I could put it in and someone pointed me to the MotoPed frame.

    It's a nice frame for $2K and their are 50cc non-shifting engines that fit that Honda E22 mount so it's not a bear trap, but in this town so long as you ride safe they just don't care what size your motor is.

    I'll fill you guys in more when we have a chance to put it through it's paces.
     
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