muffler in the way

Discussion in 'Motorized Bicycle General Discussion' started by Beetle Juice, Jun 12, 2009.

  1. Beetle Juice

    Beetle Juice New Member

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    My pedal is hitting my stock muffler any suggestion can I heat it up and bend it some or does anyone have a better idea and maybe some pics Thanks Beetle Juice:-||
     
  2. Venice Motor Bikes

    Venice Motor Bikes Custom Builder / Dealer/Los Angeles

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    You can try "slotting" the mounting holes a little to move the pipe out of the way...
     
  3. Cabinfever1977

    Cabinfever1977 New Member

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    i raised the motor on mine until it clear the peddals.
    so i guess you can rotate or raise the engine for clearance.
    its easier to make a engine mount out of scrap metal,but you can heat the muffler pipe and bend it so it will fit better,but i never tried that.
     
  4. peregrine16

    peregrine16 New Member

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    Just slot the manifold holes a bit and rotate your muffler
     
  5. 2door

    2door Moderator
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    Clamp the flange in a vice between two pieces of wood and bend the pipe until you get the clearance you need. If your pipe/muffler is chromed then using heat will ruin the plating. It can be bent cold all you need is a little arm strength and patience. Don't be too aggresive just tweak a little at a time until things fit.
    Tom
     
  6. chrisme

    chrisme New Member

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    I used my blow torch to heat it red hot, then used a pair of monkey wrenches to bend it.
    I have a black muffler, and it buggered up the paint a bit. But I had a can of high heat black spray paint laying around which made it look like new again :D
     
  7. Earthman

    Earthman New Member

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    I had to bend my exhaust pipe too ‘cause the peddle hit it. I tried to bend it cold, but couldn’t ‘cause the steel bench that my vise is attached to wasn’t heavy enough to keep it from moving. When I tried to heat the pipe to bend it, I found that my blowtorch didn’t make enough heat, so I used my welding torch on it and heated the pipe until it was red hot and the pipe bent with little effort. The heat burnt the factory paint off so I cleaned up the burnt area and painted the whole exhaust pipe with flat black Rust-Oleum High Heat paint. If you do the same, clean and rough up the unburnt paint as well or the new paint will peal when heated during normal operation of the engine. I didn’t think to do that so my new paint is pealing from the original paint. The new paint is sticking well to the area of the bend. Using an infrared thermometer, the bend of the exhaust gets up to about 200 deg F and the muffler part gets hotter than 400 deg F (the limit of my instrument), which may have something to do with it too.
     

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  8. Beetle Juice

    Beetle Juice New Member

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    Great job I have got to get a hotter torch also
    Did you change the acron head bolts for nuts
     
  9. Finfan

    Finfan New Member

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    I just used a regular Ace Hardware propane torch and could heat it hot enough to bend. It just takes a little time. It does mess up the chrome but you can ride the bike!
     
  10. chrisme

    chrisme New Member

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    It does take a while with the regular hardware store propane torches. It took about a minute for mine to get red hot. And then even longer to have it red hot all the way around. The whole operation took probably 7 or 8 minutes. But it is worth the patience :D
     
  11. Earthman

    Earthman New Member

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    Yes, I replaced the factory studs with all-thread, nuts, and Locktite. Replacing the factory stuff is recommended a zillion times on this forum.
     

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