RPMs vary at idle
Just bought this 2002 Honda Shadow 600. Cleaned the carb and installed a new K&N air filter and new plugs. It runs a whole lot better now.
However, all that work did not cure one problem. The RPMs will vary every couple seconds while at idle. It rides and accelerates just fine.
Any ideas? I'd hate to take it to a shop for something simple and have them charge me a bunch of money, just to say "sucker" behind my back as I walk out the door.