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  1. #1
    Senior Member kzhorse's Avatar
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    Manco Thunderbird??

    I picked up this Manco Thunderbird I think that is the model from searching.It has a B&S 5.5 OHV I guess that is not original,The frame was broke at the left foot peg.I cut out the tube that ran across and replaced it with a bigger tube.I dont like the scrub brake so I will replace it with a clutch brake.




    Scott

  2. #2
    buckeye's Avatar
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    Yep,that's what it is. Originally a 3.5 tec on them.
    The only thing about a bigger engine is the huge rear sproket makes it tough to keep the front wheel down and the seat sucks. But overall a great bike. I changed mine a bit.

  3. #3
    Senior Member kzhorse's Avatar
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    So I guess Red is the original color,And it looks like your sprocket is alot larger than mine so mine might not be original.Should finish the welding tommorrow and cut a new chain and see what she does.


    Scott

  4. #4
    buckeye's Avatar
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    Yep, originally red. Not sure if some came with smaller sprokets or not.

  5. #5
    Senior Member Toycartony's Avatar
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    Mine came stock with a 4hp Subaru


  6. #6
    buckeye's Avatar
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    Newer model than mine.

  7. #7
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    very cool bikes

  8. #8
    Senior Member smokinsmo's Avatar
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    Quote Originally Posted by Toycartony View Post
    Mine came stock with a 4hp Subaru

    hmm interesting, i have not seen one with that tank on it before from stock, real cool

  9. #9
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    I too own a Manco Thunderbird, see my photos. Word of caution. With the bigger motor and more power the motor plate tends to flex and cause the chain to pop off the sprocket. Weld in a brace at the every front of the motor plate-you will be glad you did.

  10. #10
    Senior Member zeeman's Avatar
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    Mine had the huge rear sprocket on it, and I replaced it with a smaller one so I could get more speed to beat Buckeye on the flat track. I hate the scrub brake too. I want to mount a disk brake on mine, but have never gotten around to it. There is a guy on Atlanta CL that has two really nice one, and I think they are pretty cheap.

 

 

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