new master cylinders or rebuild kits By quail (Read 1,947 times)

[quail]

I am looking for new master cylinders or rebuild kits for my 08 Roketa MC-54B 250. I would rather rebuild them as the cylinder bore and spool valves are not damaged. I would prefer quality parts over the Roketa parts. Does anyone have any leads or EXPERIENCE in replacing the M/Cs with some other name brand. I would like to avoid wasting money guessing. I am sure I there must have been a post about this but the search engine found nothing

[JR]

Quail I believe it was Yoster I'll have to check but finding just the master cyclinder was tough! Problem is there are tons of them but the mirror mount was a pain. Kits? Good luck!

Call Dave with Abscooters and he may ask for a picture but he'll get it right! Just ordered and recieved a new back brake caliper and sent him a pic to make sure it was right and so was Dave! Had it in 3 days.

JR

[yoster]

Yep, it was me.

Ultimately, no OEM rebuild kits are available. I contacted our preferred vendors here, but no dice. I found a seller offering high-quality aftermarket replacement seals and o-rings, but they only worked for the ATV master cylinders. He said that if I sent my old ones to him in the mail, he'd match mine up to his, and send me the correct ones (if he had them,) but I never got around to sending him my old set. I can give you his contact info if you'd like to explore that option.

At the end of the day, I ordered a whole new system from this guy:
.ebay.com/itm/Front-Hydraulic-Brake-Lever-Assembly-for-150cc-250cc-Gas-Scooters-Moped-GY6-Part-/180764762573?pt=Motorcycles_Parts_Accessories&hash=item2a166b61cd&vxp=mtr" rel="nofollow" target="_blank">.ebay.com/itm/Front-Hydraulic-Brake-Lever-Assembly-for-150cc-250cc-Gas-Scooters-Moped-GY6-Part-/180764762573?pt=Motorcycles_Parts_Accessories&hash=item2a166b61cd&vxp=mtr

That's a front lever, but he sells the rear as well. Came with master cylinder, hose line, caliper and new brake pads. I simply disconnected the new master cylinder from the system, bolted it up to mine, bled it, and bingo.

[quail]

I found a seller offering high-quality aftermarket replacement seals and o-rings, but they only worked for the ATV master cylinders. He said that if I sent my old ones to him in the mail, he'd match mine up to his, and send me the correct ones (if he had them,) but I never got around to sending him my old set. I can give you his contact info if you'd like to explore that option.
Yoster


Yoster
Did you ever send those parts in?
Quail

[tvnacman]

Jul 19, 2012 9:24:36 GMT -6 yoster said:

Yep, it was me.

Ultimately, no OEM rebuild kits are available. I contacted our preferred vendors here, but no dice. I found a seller offering high-quality aftermarket replacement seals and o-rings, but they only worked for the ATV master cylinders. He said that if I sent my old ones to him in the mail, he'd match mine up to his, and send me the correct ones (if he had them,) but I never got around to sending him my old set. I can give you his contact info if you'd like to explore that option.

would you have the glass for the master cylinders or know who does ?

John

At the end of the day, I ordered a whole new system from this guy:
.ebay.com/itm/Front-Hydraulic-Brake-Lever-Assembly-for-150cc-250cc-Gas-Scooters-Moped-GY6-Part-/180764762573?pt=Motorcycles_Parts_Accessories&hash=item2a166b61cd&vxp=mtr" rel="nofollow" target="_blank">.ebay.com/itm/Front-Hydraulic-Brake-Lever-Assembly-for-150cc-250cc-Gas-Scooters-Moped-GY6-Part-/180764762573?pt=Motorcycles_Parts_Accessories&hash=item2a166b61cd&vxp=mtr

That's a front lever, but he sells the rear as well. Came with master cylinder, hose line, caliper and new brake pads. I simply disconnected the new master cylinder from the system, bolted it up to mine, bled it, and bingo.