Step 3: Reassembly

Once you have fixed your tachometer or speedometer, or thoroughly tinkered with it to figure out how it works :) it is time to put it back together.

1) Before putting the unit back together, take and make sure the mechanism is clean and the screws holding the dial face on are nice and tight.
2) Using the pliers, flatten the ring out some more to make it easier to slide back over the cases.
3) Place the ring over the top half of the case with the pealed open edge facing the back of the case, place the back half of the case over the front and slide the ring down and over the ridges in the two cases so that the front of the ring is seated nicely all the way around the ridge on the front case half.
4) Use the pliers to bend/crimp the ring back down all the way around the case. It works best if you put the jaw of the pliers that is on the front side of the case all the way up against the case and the jaw on back is on the edge of the ring, rock the pliers back as you squeeze the pliers to gently crimp the ring back down. Go around the case again after the first pass to make sure the crimp is nice and tight.
5) Reinstall the clocks back on the bike and test them.
<p>i still use original speedometer to increase my deeply love for my CB</p>
<p>Perfect. Just picked up a used GL500i and both the Tach and Speedo were like this. Glad I looked around to see how to do this before I started doing something I would regret. Thanks!</p>
<p>Thanks for this. Got my face plate put back on easy peasy. </p>
A easier but more destructive way is to carefully cut the ring using a Dremel tool, then drill a small hole on either side of the cut. When reassembling, use a wire through the holes to pull the ends of the ring together. Twist the wire to secure.
Why could I have found this instructable a week earlier before I busted my tachometer on my cb400<br>
Three cheers for you! While I've done this to my '77 GS550, I'm glad to see a write up for all the old Hondas out there. Now, to follow your lead and get cracking (hopefully not literally) on the CB360's tach. Good job!
wow i was wondering how to do this last night because i want to put my dash lights on my cb 650 in the tac and speedometer so i can mount my mp3 player between them thanks i was going to try it one from the junk yard to see how to do it without risking my set but you did the work for me

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More by Ohm:How to open a Honda CB/CX/GL style tachometer and Speedometer Modify a Futaba S3001 servo for continuous rotation How to use a 35mm film bulk loader 
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