Joined: Oct 2011
Posts: 2,714
Likes: 13
From: Normal, Illinois
Bikes: Trek 600 ,1980Raleigh Competition G.S., 1986 Schwinn Passage, Facet Biotour 2000, Falcon San Remo 531,Schwinn Sierra, Sun Seeker tricycle recumbent,1985 Bianchi Squadra
Check and make sure all of your cog bolts are tight, and that your small cog is not bent in some way, then, if that's not the case, check your FD limit screw, and position of the FD to the cogs, angle and height. This will get you started.