How to remove the wheel bearings?

[Rianna]

Thanks, TechGuy. Yes I paid their price and bought it anyway. I should have bought that loctite brand when I saw it at the grocery store for $5. I thought I might find it cheaper at the auto parts store, but it looks like I thought wrong. It was on sale, too. The regular price was $6.29! I got a deal!

I was all set to use it tonight. I greased that axle and put everything back together except the speedometer gear. I'm almost ready to use it now.

[Rianna]

I still have some noise with the caliper attached.

Ya think I could ride it down to the machine shop this way since we ruled out the tire, wheel bearings, axle, forks, etc. and just use mostly the back brake and go easy on the front one if I do need to use it, Tech Guy? I'm considering it after I put some threadlocker on those fork mount bolts.

[TechGuy]

So, if everything except the caliper or disk is in place, it's quiet? The pads may drag a little (all the time) but not enough to make big grind noise.  If they do, we should look at if you have the correct caliper, have some bolts or washers in the wrong order, or are missing a spacer or something. They should not grind.... but they may not be silent either.

Were you planning on riding it to the machine shop, taking the front wheel off there in the parking lot, remove the brake disk, having them machine it and then put it all back together and ride home?  Unless they agree up front, they may not do it while you wait. Also, they may take offense to you doing work in the lot.  Ask first or risk offending someone.

Permatex brand = Loctite brand They are essentially the same and both reputable brands. My $2 guess-itmate may have thrown you off. But... $5 to keep the forks on the bike is a small price to pay. Yes, a torque wrench would be nice (better) but this is a close second.

[Rianna]

Well, it's too late in the day to go across town today. I forgot it's Friday. Folks are small town minded around here so that's probably not an option again until Monday anyway. There are a couple places close to it where I could likely work without attracting much attention, but, yeah...it would probably be better to take it off at home and take the buses there and back.

Okay, so, yes, with everything in place except the caliper all is quiet. With the caliper attached the rotor sticks in one spot every spin of the tire. I know it's the same exact spot because when I hear the noise I look at the rotor and I always see the same letters passing through the caliper assembly. This is what makes me think the rotor may be off. It does this every revolution and I'm not using the brake lever or touching everything.

OH, and I did get the $10.99 torque wrench.

[TechGuy]

When you take the disc to the machine shop, be very honest with the guy behind the counter.  There is a possibility that the disc is heat warped and may not machine out. Ask him about that possibility before he spends your money machining a piece of garbage.

I have been wondering, how unique is a Kymco brake disc? I am actually thinking it's not.  In truth, it's just a chunk a stainless with mounting holes. I know the "performance" ones are very special, but wonder if one of the "regular ones" at a local dirt bike or ATV shop wouldn't work fine. I wonder if the diameter and mounting wholes were the same and thickness was 4mm to begin... it should be fine.


I don't know this for sure... but I have been thinking about it.  All the dirt and motocross guys do this all the time.  They buy a bike an they upgrade the disc almost immediately.... or they go out on a weekend and bend the disc on a stump or rock and need a new "regular" one.

[Rianna]

I can order a "regular one" for about $35 if I can find the website again. I wish I hadn't lost my bookmarks because it took me a week to find that one.

I got to thinking about what you said about having the correct caliper. I looked and down inside the caliper (under the clip) it says ZY-1. I might have to search around to see what that means. I do not see those letters/numbers on the Stadium Yamaha site for the caliper assembly for the Agility 50. The brake pads have 06A11 on them and I don't see that on Stadium Yamaha either. They say KYMCO on them but they have a funny looking logo/symbol on the pads and the caliper that I have never seen associated with Kymco before. Now I'm wondering if I don't have the wrong setup...

[TechGuy]

The Stadium price for the disk is this:

45121-LBD5-E00          DISK FR BRK         $56.48         1         $56.48

http://www.stadiumyamaha.com/pages/parts/viewbybrand/73/Kymco.aspx

Does the logo look like this:



If so, my brakes have them, too.  They can be seen with pride in the new Kymco advertising for the new scooters.

[Rianna]

Wow, how did you find that?

Uh-oh...mine does not look like that. Well, not exactly. Is that a lowercase "h"?

I do remember wondering if it was a wavy capital "H" or possibly even lowercase "ff" though. It's kind of small and I wasn't sure which way to look at it. I couldn't figure out what an h or an f had to do with Kymco. Hmm...I really need to try to get a pic.

[Rianna]

I'm sorry, TechGuy, I snapped 4 more pics and they just won't come out right. There's not a lot of light so the automatic flash keeps kicking in even though I turned it off. My camera has a mind of it's own. I might try again in the daytime and then just resize it online if it turns out.

[Rianna]

When I push the brake lever 3 times one of the pistons has already moved about halfway out, but the other piston has barely budged from it's spot. I remember that one on the right was more difficult to push back in. Should they move evenly?

[TechGuy]

If you place you photos at a place like Picasa or flickr and link them, you don't need to resize them.

You link them by going to you photo storage site, ( i uses Picasa) and then you right click, choose "copy image location",

you come here and click on the photo frame (second icon, below the slanted i) and paste the contents of the clipboard into the area between the two image blocks

[img ]http://paste here [/img ] << sample one
[img ]http://lh6.ggpht.com/_SuCrmBOm6gw/TIgBAZ3Q8lI/AAAAAAAAIpc/z1jwW50QDKo/Blue-Fade-Front-avatar-1.png[/img ] <<one I broke so you can see the "before" post button. I "broke" it by adding extra spaces

[TechGuy]

When I push the brake lever 3 times one of the pistons has already moved about halfway out, but the other piston has barely budged from it's spot. I remember that one on the right was more difficult to push back in. Should they move evenly?

It probably means you need more brake fluid in the reservoir.  They may not move out evenly until they contact the disc completely and firmly.  I would not worry about ti until you get your disc issue resolved. Otherwise you will fix it and then need to take it apart and then to fix it again. Don't press them out too far without brake pads and a disc in place or the pistons will push all the way out and you will have a huge mess... and tons more work.

 ( i assume you know this but... never assume)

[Rianna]

Okay, thank you. I'm just trying to figure out how to make sure it's working as it should.

[Rianna]

Yeah, I think I knew that, but I forget a lot, too, lol. I pushed it back in and put the pads back in.

[TechGuy]

It's late back there... I understand... it's only 10:30 here.