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Join Date: Nov 2007
Location: Chandler, Arizona
Al those things Knifemaker mentioned can cause a knock. Could also be piston slap. A loose cam chain usually causes a rattle. If it actually is a knock, that is not good. It is usually reciprocating parts that cause a knock.
I am a motorcyclist, NOT a biker.
1997 Vulcan 750, purchased about a week ago
2006 Sportster 1200 Low
2013 Royal Enfield Bullet 500, converted to carb
2001 Yamaha XT225, heavily modified
2004 Honda Rebel 250
1979 Vespa P200E
2002 Vulcan 750 parts bike
1994 Yamaha XT225 parts bike