Project: Mongoose Blackcomb Motorized Bicycle

Discussion in 'Introduce Yourself' started by Kixxis200, May 12, 2013.

  1. Kixxis200

    Kixxis200 New Member

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    Well, I've searched all over the internet... and I mean everywhere.

    But I have been an owner of a Mongoose Blackcomb for about 5 years now and that was my main source of transportation from school, from work.. everything.

    Then I got a truck and yata yata you know the rest. But I stumbled upon an engine kit for an 80cc motorized bicycle kit online and was interested in modifying my bike. But as I said.. I couldn't find anything about how to mount it or anything or seen any one else thats done it.

    I was determined to accomplish such a feat. I've seen a ton of electric Blackcombs, but none with an engine.

    So I made a bracket for the motor; the rear suspension did not allow for the motor to mount in the traditional under the center location of the typical V-Frame bikes. (you know what I mean.) The bracket went directly above the rear tire. The sprocket went in place of the rear brake rotor. (^)

    Some tinkering and such it was running quite well... except for the fact that the gas tank was lower than the gravity fed carb and gas wasn't making it, but I had a plan.

    I drilled a hole in the gas cap, sealed off the vents, and got a pump to pressurize the fuel system. Now it may seem like it'd be a hazard driving around with a bomb between my legs, but the spring in the gas cap locking tab things become more of a regulator for fuel pressure. Handy at that.. (^)

    But now.. I have Mongoose Blackcomb with an engine.. and can do about 28 mph without pushing the engine to its extreme brinks in this semi-hilly country.

    But I'll upload a video with all the pictures and such so you can get a looksie.

    Any other details that you wanna know, I'll do my best to explain what I did or answer any questions.. but I'm pretty proud of this contraption.
    cvlt1
     
  2. dodge dude94

    dodge dude94 New Member

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    Re: Project: Mongoose Blackcomb MB

    Sounds interesting.
    You seem like you have some nice ingenuity....you'll fit in well here. :)

    Welcome to the forum.
     
  3. Kixxis200

    Kixxis200 New Member

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    Re: Project: Mongoose Blackcomb MB

    Well thank you sir. I've been told I have a bit of a creative side. :p
     
  4. Kixxis200

    Kixxis200 New Member

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    Re: Project: Mongoose Blackcomb MB

    Also some small details..

    I changed out the spark plug already due to clearance issues.
    I put rubber between the mounts and the frame to prevent engine movement.
    I changed to fuel line to GM Recall Fuel Line. (the good stuff)
    I already ported the intake manifold and gasket as well as the exhaust and gasket.
    I also replaced the chain with #41 chain from my local tractor supply store. 10 feet for $11.99 and I made two chains as a precaution.
    I siliconed around the head-gasket carefully to fix a minor compression leak and around the clutch cover to try to reduce noise but didn't really work on the clutch cover. Just really sealed up now. >.<
     
  5. Rey

    Rey New Member

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    okay, so i am interested on seeing these pictures of the bike setup. i also own a blackcomb and want to soon make it where i can have a motor kit on it too. thanks!!!
     
  6. AssembleThis

    AssembleThis New Member

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    Hi Kixxis200!

    Another unorthodox creator, cool. Can't wait to see the pictures. If picture size becomes an issue, many members use img or photobucket and such, picture clouds. I personally use img so I no longer have to resize my pictures, I just provide the link in the post.

    http://i.imgur.com/Kxq5O0H.png

    Anyways, pictures please, lots and lots of pictures.

    Dave
    AssembleThis

    .xx.
     

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