Originally Posted by
AKRX
Okay, so this is how it is now. I've tweaked around with the limit screws, and the tension screw, and now i have this problem. When i am on the lowest gear (biggest sprocket), and i shift to the second gear, it will not shift. i have to shift twice before it will get on the next sprocket. from there, the gear will generally shift smoothly , until around the last gears, where the ring will jump over a gear to get to where the chain should be.
I had this exact problem with a mountain bike. Seven speed Suntour indexed gears. Changing down was fine, each click moved onto the next biggest sprocket. Changing up, as you say, it lagged one step behind then changed two at once.
In my case it was resolved by renewing the outer cable (housing). The old cable setup must have just had too much friction for the return spring on the mech to pull the cable through. New cable and housing made the controls lighter as well.
Tony S