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Old 10-05-2012, 01:01 PM   #57
Süsser Tod
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Joined: Dec 2010
Location: Mexico City, Mexico
Oddometer: 902
I'm pretty sure that expansion chamber will mess up the jetting, those engines & carbs are meant to run with a basic muffler...

But that expansion chamber and boost bottle should easily get her around 15hp, if not more. I wonder what the powerband will be like, that expansion chamber is meant for a 50cc.
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