These are among the simplest design for shifter on the market. If the cable is taut it WILL pull. Perhaps the cable is broken, grossly loose or rusted inside the housing.
If the model is incorrect look for yous at http://techdocs.shimano.com/techdocs/index.jsp
Answers & Comments
These are among the simplest design for shifter on the market. If the cable is taut it WILL pull. Perhaps the cable is broken, grossly loose or rusted inside the housing.
If the model is incorrect look for yous at http://techdocs.shimano.com/techdocs/index.jsp
Procedures... http://www.parktool.com/blog/repair-help/categories/derailleur-systems