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Motorized Bicycle General Discussion All topics regarding bicycles with engines.

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Old 05-08-2011, 04:30 PM
MeatCarcass MeatCarcass is offline
Motorized Bicycle Newbie
Join Date: Aug 2010
Location: New Orleans
Posts: 14
Default Is it a good idea to do this?

so the other day, my muffler cap fell off while i was riding, the sound my engine was making sounded pretty gnarly, almost like a muscle car with that deep rumble. i went back and screwed the cap back on and kept going on my adventure. i was wondering if its a good idea to leave the cap off...
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Old 05-08-2011, 04:44 PM
Mike B's Avatar
Mike B Mike B is offline
Motorized Bicycle Elite Member
Join Date: Mar 2011
Location: Central CA
Posts: 2,259
Default Re: Is it a good idea to do this?

When mine fell off, the engine got really loud, made less power and started four stroking.

The low end torque fell off too.

So yeah, if you want a loud motor that runs like crap...

Get an expansion pipe if you want performance with your sound.

I brazed mine on so it will never fall off. If it lasts long enough to load the now sealed muffler with carbon, I will get the SBP pipe because I can't clean it out now.
The only thing in my garage with 4 wheels is the lawnmower
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