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Honda CB750K5 Restoration by Royhall
royhall:
I spent a bit of time cleaning the black plastic parts and treating them with plastic polish. Some items came up like brand new so it was well worth the effort. So just another couple of shots of the back end before I move on to the front,
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Onto the front. I fitted new AllBalls taper rollers, after some careful measuring to ensure that the correct thickness spacer washer was used (a bit tricky). The bearing casings went into the freezer overnight to shrink them a bit and they went into place really easily. At this point I discovered a couple of things about the yokes. The powder coating had not been masked correctly (they said they would rather do it than me), and the lower pinch bolts which should be a fine thread had been tapped out at some point in the past to standard threads. So I spent the next two happy hours scraping out powder coating with a scalpel, next time I will do the masking. That done the yokes fitted no problem.
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Next up was to build up the forks. Sorry in the excitement I forgot to take the photo's, but there are before and after shots. I sent the original fork tubes out for hard chroming but they were returned as parts of both tubes had pitting too deep to be repaired. So that meant a set of reproduction tubes, not really my first choice but they look decent quality.
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royhall:
Finally on the forks I needed to fill with new fork oil. As I don't have an accurate measuring jug for use in the garage I did my usual thing. I use a disposable clear plastic cup and a marker pen. Using the kitchen measuring jug I fill with water to the correct level then tip the water into the cup. After it settles I make a marker pen line aroung the cup them empty out the water leaving the mark at the correct quantity. After drying out the cup with tissue I fill with new fork oil and pour into the fork and fit the top caps. Forks finished.
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Just a shot now of the fork yokes fitted with the Yamiya ears and new seal rings. Note the now non standard bottom pinch bolts.
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JamesH:
Great progress Roy - feels like you’ve got some real momentum now and she’s looking very nice indeed!
Trigger:
Put the gators on the ears first as the rings will not move up far enough while mounted to seat the gators ;)
royhall:
Tried all ways Trig, they just would not go on. They fit the Yamiya ones and the originals no bother. I think I just got a bad set as Silvers said the others in stock were okay.
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