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Old 09-03-2010, 07:16 PM
Bikeguy Joe Bikeguy Joe is offline
Godfather of Motorized Bicycles
Join Date: Jan 2008
Location: up north now
Posts: 11,531
Default Re: 2nd motor broke. Was working fine, now makes clanky and metal on metal scratching

Use a screw driver with the plastic end against the bone right in front of your ear. It works like a stethoscope. The find where the noise is coming from. Take it apart, find the offending broken goodies, and repair/replace. I doubt running it wide open for 3 miles broke anything major, especially on a four stroke. I'd bet it's something like the pull start, flywheel, or something non "lethal".
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