Anyone thought about a diesel bike?

Discussion in 'Motorized Bicycle General Discussion' started by LongboardMalinois, Sep 9, 2015.

  1. LongboardMalinois

    LongboardMalinois New Member

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    I too have a 10hp Yanmar clone engine sitting in a box in my garage. I would love to put it in a bike, but i don't have a welder to make it happen, and i'm too cheap to buy one just to use it to build a frame!
     
  2. LongboardMalinois

    LongboardMalinois New Member

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    I've seen that one, it is pretty close to what i would like to build.
     
  3. cannonball2

    cannonball2 Active Member

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    I just recently bought a 6hp clone for a fishing boat I am building. I considered a 10hp but it weighed 100+ lbs. The 6hp weighs 82 in electric start. That's a heavy engine for a bicycle based build. Fine for a M/C conversion. There are smaller ones out there.

    But the greater issue is the inherent vibration associated with the diesel. The Yanmar clones do have a balance shaft and seem smoother than the old Hatz 6-8hp I have from the 70s. This engine sat on 4 isolators that were basically the same mounts used in the earlier Volvo cars(they used only 3).

    That's a nice looking bike in the pic. The engine looks like a 6hp, but cant really tell. 6 would be PLENTY with the torque it makes. It would be wise to get a seriously honest answer as to how well the vibes are dampened by a frame sized for bicycle components before spending a lot of time on a build.
    A 66cc CG can buzz hands and feet numb on certain frames, and its a crap shoot on harmonics with a one off frame. You wont know til its built.

    I would love to have a small MB/MC diesel powered build and I'm not trying to discourage any one thinking about it. I just wouldn't want to spend a bunch of time on a build only to have it rideable for a short duration. A diesel would need to be a good long distance traveler.
     
  4. Ludwig II

    Ludwig II Well-Known Member

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    V twin in a motorcycle frame seems the most logical way. You could also go Isolastic, and have the engine/trans/back wheel in a subframe and isolate the seat/front tubes/forks with bushes if you use a single.
     
  5. jolfstn

    jolfstn Member

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    on youtube.com typed "2 stroke on diesel" & found weed-whackers & leaf blowers and a lawn mower that start using usual mix fuel, then after warmed up switched to diesel, and generally it seemed they ran a little slower, but had more torque.
    Here's what Im thinking, have 2 fuel tanks on a switch, start with 2 stroke mix fuel, then after warm up switch over to diesel. Obviously it'll smoke, but based on what I've seen it appears it might work. Perhaps towards the end of the ride I would switch back to reg gas for easier starting next time. I'm thinking of rigging up a proof of concept and I'll let y'all know what the results are.

    Only the last few weeks have I been able to ride at all, I was hit by a car in November and 5 broken ribs as well as other injuries do not make bike riding fun. I was Jones-ing for a while but am back on my bike!
     
  6. Ludwig II

    Ludwig II Well-Known Member

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  7. Ludwig II

    Ludwig II Well-Known Member

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