Join Date: Aug 2011
Location: Sack-a-Tomatoes, CA, US
Also, check the cable routing - here is the simple test.
Once the bike is warmed enough to idle well, leave the throttle closed and turn the handlebars all the way left, then all the way right - the engine speed should NOT change if the cable routing is good. If the cables are getting pinched or kinked, that can make them stiff.
Black Beast = '71 CB750
Lazarus = '86 VT1100C rescued from a salvage yard.