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airblazer

Active Member
It's been a minute...more like 1,814,240 to be precise. It's nice to come back and see familiar names.
I've splattered my Z50 K1 all over my garage to figure out where I left off 3.5 years ago. I've got orders in for the parts I need to make this bike a runner. I did a thorough scrubbing of all the grime and dirt on the outside of the tank. It cleaned up ok but my joy didn't last long - I put a few gulps of fuel in then watched in disgust as it weeped steadily out of the front seam. It endured plenty of abuse from the previous owner banging against the frame - the front tank frame tabs were broken off, a bungee cord was holding it in place and no rubber frame pad under it when I bought the bike, so I shouldn't be surprised. I'm intending to replace the tank rather than repair it for now. I'll try paintless dent repair, a torch to help bend the front tab collars back into correct shape, an evaporust bath, and POR-15 to stop leaks and seal the inside once I feel confident that I can do it.:rolleyes:
 

airblazer

Active Member
I intend to start cleaning & overhauling the hubs, and would appreciate some experienced advice on how best to remove and install old and new bearings. The old ones barely rotate. Thanks in advance for any and all tips!
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dirtbkr188

Active Member
A blind bearing puller to remove the inner bearing from the brake drum side, and, after removing the center collar, a long drift punch setting the tip in 90° increments and slightly tapping all around the outer race of the outer bearing.
For the install, I put the bearings in the freezer overnight, and then use a flat washer just smaller in diameter than the bearing, along with a deepwell socket and hammer to drive the bearing into place in the hub until it seats.
 
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kirrbby

Well-Known Member
I would pull the seals first and look to see if...at least the rear, MIGHT have a inner snap ring that holds the bearing in place. I've broke a hub before...not knowing it was there. I think maybe only the earliest Z50 hubs have them. And, I THINK it was only on the rear hub.

The long spacer...sits between the bearings. On ONE end of that spacer...I think it's the brake side...there is room inside to drive the spacer OVER...off center...then you can get to the back side of that bearing with a long punch or screwdriver to drive the bearing out. Go slowly and carefully to drive it out straight/square. Once that bearing is out...it's easy to drive the other out.

A little heat can help if necessary...but usually not.
 

airblazer

Active Member
I see the snap ring on the front hub, I can get it to move around, but I can’t get it out. I’m guessing that is due to my high quality $5 harbor freight snap ring pliers💩🤬. Can anyone recommend the right tool for the job?
 

kirrbby

Well-Known Member
I hear Snap-on makes a good set. Lol

I'd just stop at any good hardware and buy a brand name. Those inner ones are always kinda tricky tho. You might just need to give it the right-kind of wiggle.
Or, grab one end with a pic, or needlenose, and...YANK it and replace it.
 
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