[Spirit_1100]

Any easy way to figure out if a used bike with aftermarket pipes has been properly rejetted?

The easy way is to check the plugs and listen for popping on decel. The plugs should be checked after a 5 minute highway speed run then shut the bike off and coast to a stop. Remove the plugs and check them. (Be careful, they will be hot.)

The only real way to tell is to tear into the carbs and look.

Joe