P250 rear brake pads -- how difficult?

[jprestonian]

Well, after nearly 12,500km, it seems that I need to replace my rear disc brake pads on the People 250. The brake handle travel is almost maxxed out, so I reckon that's a good sign that it's time...?

So, as a guy who's not allergic to oil changes, etc., how difficult is this?  Is it just a matter of taking the caliper off and apart, and then essentially reversing the process?

Please tell me I don't have to take the back wheel off.  :)
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[heypete]

Not 100% sure about the P250, but I just took the rear brake caliper (but not the pads) off my Bet & Win 150 for inspection. Only two bolts needed to be removed, and the rear wheel stayed on.

That said, something about the brakes confuses me: the shop manual states that DOT 3 brake fluid should be used, however the master cylinders on my B&W state that one should use DOT 4. According to sources I've read, the two are compatible, though DOT 4 has higher boiling temperatures. Hopefully things won't go Horribly Wrong when I get around to changing the brake fluid.

[Shaka]

Heypete-  Dot 3 & Dot 4 are interchangeable.  You are correct in that Dot 4 does have a higher boiling point.  I believe that the Dot system goes all the way to 8, that I have heard of.  I think the Dot 8 is used for Formula one cars!  I have never seen anything readily available besides Dot 3; which is what I have always used in everything from cars, motorcycles, & bicycles.  I'm not sure of the exact temp. difference, but it's not something you will ever need.

[zombie]

Yeah jpres. It is as easy as you would hope... Open the reservoir, and use an OAK, or PLASTIC wedge to drive between the pad, and the caliper. this will push the piston back into the caliper. you can then loosen the retainer bolts, and swap the pads. I always smear a FILM of coper rtv on the back of the pads to keep them from squealing. I also use aluminum Anti Sieze. on the bolts to keep everything serviceable. The dot 4 is because of the small size of the caliper. There is nowhere for the heat to go. I gravity drain my disc system each time I change the gear oil. (about twice a year) Easy Breezy...

[scooterman]

So where can i buy some brake pads & rotor from.

[jprestonian]

Stadium Yamaha.
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[TechGuy]

A little late but on my P250, I got the pads from CycleGear and they were the same pads as a Ninja 250 so they were cheap and easy to find. 

I followed the instructions in the service guide and removed the muffler and then the caliper blocks and then the pads.  I had a harder time getting the air out and  still think I have one bibble.  The parts I got from the Kymco Dealer were wrong for the rear pads. They were the same pads front and rear on my P250. I don't think you can get to all the bolts unless you remove the muffler.