Motorized Bicycle: Engine Kit Forum  

Sponsors



Go Back   Motorized Bicycle: Engine Kit Forum > Motorized Bicycle Mechanical Components > Intake & Exhaust

Intake & Exhaust The ins and outs - carburetors, manifolds, mufflers, expansion chambers and more to keep your motorized bicycle running the way you like

Reply
 
Thread Tools Display Modes
  #1  
Old 01-17-2012, 02:38 AM
toojung2die's Avatar
toojung2die toojung2die is offline
Motorized Bicycle Newbie
 
Join Date: Feb 2011
Location: La$ Vega$ NV
Posts: 17
Default Show us your Pipe!

The look, style, function and sound of the exhaust pipe on a motorized vehicle is very much a matter of personal preference. The mufflers that come with HT engines work OK but leave much to be desired.

I've seen many bikes where the exhaust pipe is an expression of the builders personal style. What matters to you? Form or function? What have you done to customize your exhaust pipe? Lets see what you've come up with to personalize your motorized bicycle.

Here is a pipe I made from EMT conduit and an eBay exhaust.




Show us your pipe! How did you do it?
Reply With Quote
Sponsored Links
  #2  
Old 01-17-2012, 10:25 AM
2door's Avatar
2door 2door is offline
Super Moderator
 
Join Date: Sep 2008
Location: Littleton, Colorado
Posts: 6,799
Default Re: Show us your Pipe!

I like EMT. It bends well, you can TIG weld it and it polishes up nice with a little effort on a bench buffer and some compound. I've built several custom exhaust pipes with it and haven't found a better alternative.
Yours is very nice. Neat, clean and functional. Thanks for sharing.
I'd like to see a close-up of how you joined the conduit to the flange at the cylinder.
Tom
__________________
Age and Treachery Will Always Triumph
Over Youth and Skill & "Charlie Don't Ride"
Reply With Quote
  #3  
Old 01-17-2012, 11:55 AM
Venice Motor Bikes's Avatar
Venice Motor Bikes Venice Motor Bikes is offline
Custom Builder / Dealer
 
Join Date: Mar 2008
Location: Los Angeles, CA.
Posts: 4,426
Default Re: Show us your Pipe!

Here's good one that Jeff (CCC) & I built from EMT.


__________________
For motorized bicycle sales & service in Los Angeles, please visit us at- www.VeniceMotorBikes.com
Reply With Quote
  #4  
Old 01-17-2012, 05:35 PM
toojung2die's Avatar
toojung2die toojung2die is offline
Motorized Bicycle Newbie
 
Join Date: Feb 2011
Location: La$ Vega$ NV
Posts: 17
Default Re: Show us your Pipe!

Quote:
Originally Posted by 2door View Post
I like EMT. It bends well, you can TIG weld it and it polishes up nice with a little effort on a bench buffer and some compound. I've built several custom exhaust pipes with it and haven't found a better alternative.
Yours is very nice. Neat, clean and functional. Thanks for sharing.
I'd like to see a close-up of how you joined the conduit to the flange at the cylinder.
Tom
Thanks for the props. Some 000 steel wool and elbow grease makes EMT shine. Here's the flange to conduit weld. I have a hobby size (70amp) stick welder. My welds are not pretty but that's what a die grinder is for. The eBay exhaust I bought is junk. It's the one with a big compression nut to hold the muffler to the pipe. The welds on the compression fitting broke while riding last night. So much for a removable muffler. I gutted the baffles, what a joke they are. I'm going to make a new glass pack insert and weld the muffler to the pipe. Is there any appreciable difference between fiberglass insulation for packing and real muffler glass pack?

Reply With Quote
  #5  
Old 01-17-2012, 05:44 PM
toojung2die's Avatar
toojung2die toojung2die is offline
Motorized Bicycle Newbie
 
Join Date: Feb 2011
Location: La$ Vega$ NV
Posts: 17
Default Re: Show us your Pipe!

Quote:
Originally Posted by Venice Motor Bikes View Post
Here's good one that Jeff (CCC) & I built from EMT.
Very nice and it fits the style of the MB. That's what I'm talking about.
Reply With Quote
  #6  
Old 01-17-2012, 06:10 PM
biknut's Avatar
biknut biknut is offline
Motorized Bicycle Elite Member
 
Join Date: Sep 2010
Location: Dallas
Posts: 2,090
Default Re: Show us your Pipe!



Copper to copper is all I know how to weld. The silicone rubber hose from SBP works well to join to steel.

Last edited by biknut; 01-29-2012 at 12:24 AM.
Reply With Quote
  #7  
Old 01-17-2012, 06:32 PM
andrewflores17's Avatar
andrewflores17 andrewflores17 is offline
Motorized Bicycle Elite Member
 
Join Date: Jul 2010
Location: colorado springs
Posts: 239
Default Re: Show us your Pipe!

that copper exhaust would realy work well on a retro style build .
__________________
Great bikes are built not Bought

http://motorbicycling.com/showthread.php?t=34006
Reply With Quote
  #8  
Old 01-17-2012, 08:25 PM
FPSaustralia's Avatar
FPSaustralia FPSaustralia is offline
Motorized Bicycle Member
 
Join Date: Dec 2011
Location: sunshine coast
Posts: 22
Default Re: Show us your Pipe!

Biknut .... HEy nice bike BUuuuuuuTT ... do u want to to proplu use your expantion chambour .... ???? u have 2 have it Comming off the Engine for it to worke and Givve the right wave resanations .. any wayz NICE
Reply With Quote
  #9  
Old 01-17-2012, 09:05 PM
The 26incher's Avatar
The 26incher The 26incher is offline
Motorized Bicycle Elite Member
 
Join Date: Dec 2009
Location: Pepeekeo, HI
Posts: 384
Default Re: Show us your Pipe!

I wanted to show my exhaust because I am really happy with the way it came out. I can't seem to re-post the pic so I'm posting the link. http://motorbicycling.com/f41/new-is...ser-30672.html
Reply With Quote
  #10  
Old 01-17-2012, 09:09 PM
Mike B's Avatar
Mike B Mike B is offline
Motorized Bicycle Elite Member
 
Join Date: Mar 2011
Location: CA
Posts: 703
Default Re: Show us your Pipe!

__________________
The only thing in my garage with 4 wheels is the lawnmower
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 03:33 PM.


Sponsors

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2012, vBulletin Solutions, Inc.
Motorized Bicycle Engine Kit Forum