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| | | | High Performance Bicycle Engine Tips We all want our bicycle engines to push our bikes faster. Get exclusive engine modification tips and suggestions from us. | loud and fast Discussion at Motorized Bicycle Engine Kit Forum in the High Performance Bicycle Engine Tips forum. so i took the screw out from the end of my muffler and took the cap and connected pipe out. ...  | | 
08-27-2008, 12:59 AM
|  | Motorized Bicycle Apprentice | | Join Date: Aug 2008
Posts: 16
| | loud and fast so i took the screw out from the end of my muffler and took the cap and connected pipe out. took it for a spin and could'nt believe the difference. it was way faster and more responsive, no more "four cycling". could i burn something up running it like this? are there some simple mods that i can do and still keep it semi quiet? | 
08-27-2008, 01:23 AM
|  | Custom Builder / Dealer | | Join Date: Mar 2008 Location: Venice Beach, CA.
Posts: 507
| | Re: loud and fast Quote:
Originally Posted by rickdiculous so i took the screw out from the end of my muffler and took the cap and connected pipe out. took it for a spin and could'nt believe the difference. it was way faster and more responsive, no more "four cycling". could i burn something up running it like this? are there some simple mods that i can do and still keep it semi quiet? |
I ran my "Bomber" Bike like this!!!
They are really fast & powerful without the baffle!!!!
It won't hurt it running it like that.
The best compromise is to drill a few 3/8" holes in the end of the baffle. (A little more power, a little more noise!)
Last edited by VENICE BOY : 08-27-2008 at 01:29 AM.
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08-27-2008, 07:40 AM
|  | MODERATOR | | Join Date: Jan 2008 Location: Ashtabula county, Ohio
Posts: 4,245
| | Re: loud and fast Remove baffle, replace end cap, enjoy.
__________________ If it ain't broke, and you mess with it long enough, it will be. | 
08-27-2008, 11:18 AM
|  | Manufacturer/Dealer | | Join Date: Dec 2007 Location: Charlottesville, VA
Posts: 339
| | Re: loud and fast HI,
For quiet you can do this.....Large volume muffler means zilch back pressure for all practical purposes....Quiet too!
Andrew | 
08-27-2008, 01:23 PM
|  | Senior Motorized Bicycle Builder | | Join Date: Jan 2008 Location: Canada
Posts: 96
| | Re: loud and fast A classic cherry bomb would look good but I would imagine that the glass pack would just collect the black ooze that normally comes out of the pipe . ...... D.J. 
__________________
If you don't have dreams , your dreams can't come true .
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08-27-2008, 11:30 PM
|  | Motorized Bicycle Apprentice | | Join Date: Aug 2008
Posts: 16
| | Re: loud and fast thanks guys. today i port matched the intake and ehuast, cut off the pipe connected to the muffler end cap and drilled the holes in the baffle plate out. it just started raining so i cant take any hot laps. i'll have to get back to ya with my progress. | 
08-28-2008, 12:15 AM
| | Motorized Bicycle Apprentice | | Join Date: Aug 2008 Location: OC, California
Posts: 5
| | Re: loud and fast Too bad we have noise pollution laws here. I took the end out and what a difference. But I did wake some napping kids in the neighborhood. I got to try cutting the pipe as well. | 
08-28-2008, 08:15 AM
|  | MODERATOR | | Join Date: Jan 2008 Location: Ashtabula county, Ohio
Posts: 4,245
| | Re: loud and fast When I removed the baffle from my first engine I could hardly tell any difference when run side by side with a "stock" muffler.
__________________ If it ain't broke, and you mess with it long enough, it will be. | 
08-28-2008, 09:59 AM
| | Motorized Bicycle Apprentice | | Join Date: Aug 2008
Posts: 1
| | Re: loud and fast Hey guys im new to the site and I was wondering, I know removing the baffle elimanate back pressure but isnt some back pressure necessary for a two stroke to work properly | 
08-28-2008, 03:04 PM
|  | MODERATOR | | Join Date: Jan 2008 Location: Ashtabula county, Ohio
Posts: 4,245
| | Re: loud and fast It doesn't remove all backpressure. A two stroke will run without a muffler, it's just hard to get good throttle response from off idle to upper midrange..
__________________ If it ain't broke, and you mess with it long enough, it will be.
Last edited by Bikeguy Joe : 08-29-2008 at 07:25 AM.
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