You can pull the rocker cover and measure the I.D. and the O.D. of both the rocker arm and the rocker arm shafts...a dial caliper will do the trick....if they are beyond service limits, replace them with new ones. i dont like the idea of using used rockers. but if thats all you can afford then go for it.
i have the same issue with my rubicon 500. i thoroughly inspected my valve train, including the chain tensioner, rocker shafts/arms. valve springs, rocker faces, etc....everything is in great shape....all i can think of is a possible valve seating issue....it doesnt affect the performance of the bike so i'll just leave it be.
Last edited by Manny; 05-19-2012 at 06:49 PM.