brake problems--Question

bruce · 11-16-2008, 08:47 PM

Hello

Just found this website.

I purchased what I think is called the Zongshen MK150GY2. The rear brake is disc and has an anti-lock system attached.

Problem is, after a few minutes of riding, the pads begin to compress on the disc. Drive it further, and the rear wheel actually locks up. I have moved the brake fluid reservoir outside the frame, thinking the fluid was being heated and expanding due to close proximity to exhaust, causing the lock-up. This did not fix it.

I can only drive the bike a very short distance before it locks up.

I have no owner's manual, which doesn't help.

Any ideas?

Thanks,

Bruce

IronFist · 11-16-2008, 09:00 PM

Yes
Use the search feature. don't ride till fixed.

There are a few things to check, http://www.chinariders.net/modules.p...ght=break+lock

http://www.chinariders.net/modules.p...ght=back+brake

http://www.chinariders.net/modules.p...ght=back+brake

There are 214 hits matching "back and break" using the search feature. The rule is to search first then post.

Rules page http://www.chinariders.net/modules.p...=viewtopic&t=2

This is the official bike Prep thread. http://www.chinariders.net/modules.p...&t=172&start=0

Jim · 11-16-2008, 10:03 PM

This happened on my dad's gy5, and on my gy6 because the plunger on the master cylinder was nto adjusted right, it was just a matter of adjusting these bolts...

Willys · 11-16-2008, 10:04 PM

I would guess that your master isn't allowing the fluid back into it so it's allowing the pads to stick on to the disc...just my guess. It's not releasing your brakes completely

bruce · 11-16-2008, 10:22 PM

Thanks for the "heads-up". Sounds like I am not the only one with this problem at least.

My back rotor is black from heat.

Bye,

Bruce

tigertamer · 11-17-2008, 08:11 AM

This is what I found using "back" and "brake" in the search window :wink:

Search found 2968 matches

(sp) makes a BIG difference :idea:

Respectfully,
Tigertamer

theENIGMATIC · 11-18-2008, 10:27 PM

I had a similar problem with my rear brake, although no lock up the fluid was leaking like a bitc$ out of the caliper, after removing everything making sure to have pumped the pistons out as much as I could I sprayed with brake cleaner put everything back bled in new fluid, adjusted all screws and bolts and bingo, no problems since, hope this helps dude1

11-16-2008, 08:47 PM	#1
bruce Join Date: Nov 2008 Posts: 2	brake problems--Question Hello Just found this website. I purchased what I think is called the Zongshen MK150GY2. The rear brake is disc and has an anti-lock system attached. Problem is, after a few minutes of riding, the pads begin to compress on the disc. Drive it further, and the rear wheel actually locks up. I have moved the brake fluid reservoir outside the frame, thinking the fluid was being heated and expanding due to close proximity to exhaust, causing the lock-up. This did not fix it. I can only drive the bike a very short distance before it locks up. I have no owner's manual, which doesn't help. Any ideas? Thanks, Bruce
	0

11-16-2008, 09:00 PM	#2
IronFist Join Date: Apr 2007 Location: Toronto Ontario Canada Posts: 2,585	Yes Use the search feature. don't ride till fixed. There are a few things to check, http://www.chinariders.net/modules.p...ght=break+lock http://www.chinariders.net/modules.p...ght=back+brake http://www.chinariders.net/modules.p...ght=back+brake There are 214 hits matching "back and break" using the search feature. The rule is to search first then post. Rules page http://www.chinariders.net/modules.p...=viewtopic&t=2 This is the official bike Prep thread. http://www.chinariders.net/modules.p...&t=172&start=0 __________________ IronFist ___________________________________ The "chain" of command is used for beating spammers. ___________________________________
	0

11-16-2008, 10:03 PM	#3
Jim Join Date: Mar 2007 Location: Abbotsford, BC, Canada Posts: 4,880	This happened on my dad's gy5, and on my gy6 because the plunger on the master cylinder was nto adjusted right, it was just a matter of adjusting these bolts... __________________ "Be excellent to each other" "We are all human. Let's start to prove it!"
	0

11-17-2008, 08:11 AM	#6
tigertamer Join Date: Jul 2008 Location: Wheeling, West Virginia Posts: 683	This is what I found using "back" and "brake" in the search window :wink: Search found 2968 matches (sp) makes a BIG difference :idea: Respectfully, Tigertamer __________________ 07 H-D XL883C 06 LF 200GY-5 Yin and Yang CAUTION Obey The Traffic Regulation. Always Wear a Helmet. Don't Ride After Drinking Wine. Before Operation, Read The Owners Manual Carefully.
	0

11-16-2008, 10:04 PM	#4
Willys Join Date: Nov 2008 Location: Just north of Toronto Posts: 68	I would guess that your master isn't allowing the fluid back into it so it's allowing the pads to stick on to the disc...just my guess. It's not releasing your brakes completely
	0

11-16-2008, 10:22 PM	#5
bruce Join Date: Nov 2008 Posts: 2	Thanks for the "heads-up". Sounds like I am not the only one with this problem at least. My back rotor is black from heat. Bye, Bruce
	0

11-18-2008, 10:27 PM	#7
theENIGMATIC Join Date: Feb 2008 Posts: 392	I had a similar problem with my rear brake, although no lock up the fluid was leaking like a bitc$ out of the caliper, after removing everything making sure to have pumped the pistons out as much as I could I sprayed with brake cleaner put everything back bled in new fluid, adjusted all screws and bolts and bingo, no problems since, hope this helps dude1
	0