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- Hammer
- Small slotted screwdriver
- Micro slotted screwdriver
- pick
- punch
- pliers
- vice grips
- wire brush
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- Begin by removing the small pivot screw this can be tricky
- this is a high wear part and should be replaced
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- this trick sometimes is necessary
- attach the vice grips to the micro screwdriver and use them for leverage
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- once you break it free you can finish removing it by hand
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- you may have to use the pliers to get the pin out
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- inspect the roller and replace it if its worn out or has and grooves
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- next use the punch to remove the pin that holds the arm to the top part of the selector box
- the pin is tapered so it will only come out one way (with the arm pushed all the way in as if it were in 1st gear).
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- after you get it started spin the arm the other way (as if it were in 4th gear) and pull the pin out with the pliers
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- with the pin out the two pieces are separate and you can slide the top part off
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- this is what you should have
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- inspect the teeth for any wear
- this can be a cause of your bike slipping out of gear if the teeth are badly worn.
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- these are all the parts of the disassembled selector
- clean all the parts that you are going to reuse
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- use the wire brush to clean the mating surface to prevent oil leaks
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- insert the shaft into the box
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- make sure they are lined up and push it the rest of the way in
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- line up the holes and insert the pin
- remember its tapered so stick the smaller end in first
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- finish the job with a hammer
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- tighten it down with a screwdriver as tight as you can get it
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- finally insert the spring and your almost done!
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- there is an indentation that accepts the spring on the body of the selector
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- install it on the motor with a new gasket
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