Originally Posted by
vermilionx
1. when i wanna shift to 2nd gear (2nd biggest cog in the cassette) from 3rd gear... it's trying to skip 2nd gear and just goes on this rattling on trying to fall into gear and chain is sitting on top of 1st gear but not really locking.
2. it won't even shift to the 10th gear now. it just gets stuck on 9th gear and just makes rattling noises.
im playing with the 2 screws (high low screws i believe) right now but im not really familiar with them.
help?
These do nothing but set how far the RD travels and stops (were it stops) has nothing to do with anything in between.
Remove chain shift lever all the way down (I'd remove cable also at RD) line up jockey wheel with the small cog using the limit screw. Move the RD with your thumb all the way to the big cog adjust limit screw so it lines up with it. Same time locate B screw adjust so you have about 1mm from upper jockey wheel and large cog.
Let RD go turn in any barrel adjusters you have on bike, reinstall cable on RD pulling out slack tighten cable clamp use shift up one gear if it doesn't move turn barrel adjuster CCW so it moves up on gear, shift to next gear, it should go up if its slow turn barrel adjuster CCW a little 1/8 turn or so shift up another gear, it should run all gears good, shift down to a middle cog if you have chain rattle a slight turn go barrel adjuster should remove it.
Now at this point if you have trouble with it still something else is wrong bent hanger worn cable and housing or bent parts someplace that you need to check that you need to see, take it in to someone that can look it over its not a simple adjustment it you fallow the above in order.
You say it seems good for now good on the road adjustments are easy at this point slow shifting up to larger cog turn a barrel adjuster CCW slow shifting down to smaller cogs turn barrel adjuster CW simple these turns are small at this point 1/8 no more than 1/4 could be even small 1/16 if you are picky