I had to rebuild a set of Yamaha YZ125 H 1981 forks today. But first I had to make a T bar wrench to aid torquing up the dampener rod bolt.
I had some 8mm mild steel rod for the job and a nut that would fit into the dampener rod end.
The top of the damener rod has a socket end as per the following image.
Ji
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Thread: Fork Dampener Rod Wrench
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04-17-2010, 01:44 AM #1
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Fork Dampener Rod Wrench
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04-17-2010, 01:45 AM #2
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To notch the 8mm rod I placed it into my drill press and drilled it out until I reached 8mm.
JiGrip it and Rip it
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04-17-2010, 01:47 AM #3
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This drilling thing notched the rod well enough to fit it up just nice.
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04-17-2010, 01:48 AM #4
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I positioned the rods together using a welding magnet and tack it using TIG.
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04-17-2010, 01:49 AM #5
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I then continuously TIG welded up the T bar.
The dampener rod bolt has to be tightened up to 35N/m so I tested it to 45N/m, no problems.
JiGrip it and Rip it
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04-17-2010, 01:51 AM #6
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I then lathed up an insert and pressed it into the nut with a 20 ton press. It all fitted up beautifully.
JiGrip it and Rip it
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