Shimano 7speed Integrated Lever Repair

After a few years bike hand grips get pretty stuck on. The first step to repairing your shifters is to remove these grimy cesspools of sweaty palm. Easiest way to remove them is by cutting them off

Cables need to be changed frequently so if your cables are a couple years old just snip them. A new cable set will do wonders for your bike.

A 3-way Allen thingie is my favorite bike tool ever

These shifters are dumb because the function of the shifter is completely dependent on the integrity of the plastic body. This one is clearly cracked. Something must be done

The functionality of your wonderful vintage integrated shift/brake levers.

This time we'll fix the plastic with some of this awesomesauce. Sorry I don't have a picture of it all gooped up. Didn't wanna get my phone dirty.

The pall seen in this picture near the index finger of the hand model, is frozen. It is not engaging the notches at all and the spring is ineffective.

The magic that is WD-40 is mostly bad for most bike things. This is one exception. It will help loosen everything in the shifting mech. Play with it a lot until everything works crisply.

Put it all back together and you've got a nice newly maintained shifter!