Back wheel

jcmd13 · October 27th, 2016, 01:24 PM

Guys,

I took the back wheel off to find someone to change the tire out for me. Needless to say I couldn't find anyone so I put it back on. But I think it's on wrong. The axle was really difficult to put back on and one of the brake pads fell out. I put the pad back in and was able to get it back on the rotor, finally, but now the back break doesn't feel like it's engaging. In fact when the brake is pressed the whole caliper arm, that's connected to the axle, flexes towards the wheel.

Any idea what I did wrong?

csmith12 · October 27th, 2016, 01:38 PM

STOP! Do not ride your bike John!!!

Get someone who knows how all the parts go together and can reinstall everything properly.

1st off... Pads just don't fall out!!!! There is a pin in the caliper that holds them in place. If that is broken or not in installed you will have safety issues.

2nd... When removing a wheel and then reinstalling it, resetting the brake system is 100% normal and not really a problem. When reinstalling the wheel the rear brake pads may need to be spread apart giving yourself room to work and align the axle and all other parts. So just after reinstall, the rear brake doesn't work until pressure is built back up. If you don't know how to do this, the get help from someone who does know! STAT!!!

jcmd13 · October 27th, 2016, 02:06 PM

I'm not diving it, however I did a little to test it. It appears to be riding fine just the back break isn't connecting. I can't figure out why the whole mount flexes when the brakes are engaged. Or why the axle was so much more difficult to put back on

Z1R rider · October 27th, 2016, 02:12 PM

The inner pads on the pregens are riding on a pin like Chris said, but the outer pad (the one against the caliper pistons) just sets in notches in the caliper body and fall out (or partly out) at the slightest provocation. Almost certainly the outer pad slipped out of it's notch and is binding when applying pressure with the brake pedal. Make sure it's all put together properly before riding.

Z1R rider · October 27th, 2016, 02:13 PM

Quote:

Originally Posted by jcmd13

I'm not diving it, however I did a little to test it. It appears to be riding fine just the back break isn't connecting. I can't figure out why the whole mount flexes when the brakes are engaged. Or why the axle was so much more difficult to put back on

It's also possible that you have the spacers in wrong.

jcmd13 · October 27th, 2016, 02:23 PM

It was the smaller pad that just sits in there. I think I got it aligned correctly but I'll recheck it.

The spacers are what I'm worried about. There is one on the right side that has a lip around it, I have it lip facing out. The other side is just round so I stuck it in there. Then my chain tensioners have a washer welded to them that I have facing in towards the wheel on both sides. Does this sounds right?

Z1R rider · October 27th, 2016, 02:34 PM

The washer should be facing out on both sides, you should see an alignment mark that will line up with the marks on the swingarm. I don't remember for sure the positions of the spacers, you can look them up on a parts fish. http://www.partsfish.com/oemparts/a/...ar-wheel-chain

jcmd13 · October 27th, 2016, 05:20 PM

That is probably the problem then. I'll pull it tomorrow and see if it's better

Mohawk · October 27th, 2016, 11:32 PM

I thought I'd help by locating a how to video on YouTube, but just tried half a dozen & they are so lame, I gave up. All the right info is there but not in one simple video.

Check your caliper, it's assembled wrong, do a search for an online parts diagram like this, which will show the layout of the parts & download the service manual from this site to get a full instruction.

Parts
http://www.kawasakioriginalparts.com...-F9&country=US

Be careful.

jkv45 · October 28th, 2016, 07:04 AM

Read through this section for more info about the brakes - http://faq.ninja250.org/wiki/Brakes

Info about rear wheel removal and installation - http://faq.ninja250.org/wiki/Removin...the_rear_wheel

Make sure everything is assembled correctly and the chain is adjusted properly before riding.

October 27th, 2016, 01:24 PM	#1
jcmd13 ninjette.org member Name: John Location: Greenville, Tx Join Date: Oct 2016 Motorcycle(s): EX250F Posts: 15	Back wheel Guys, I took the back wheel off to find someone to change the tire out for me. Needless to say I couldn't find anyone so I put it back on. But I think it's on wrong. The axle was really difficult to put back on and one of the brake pads fell out. I put the pad back in and was able to get it back on the rotor, finally, but now the back break doesn't feel like it's engaging. In fact when the brake is pressed the whole caliper arm, that's connected to the axle, flexes towards the wheel. Any idea what I did wrong?

October 27th, 2016, 01:38 PM	#2
csmith12 The Corner Whisperer Name: Chris (aka Reactor) Location: Northern KY Join Date: May 2011 Motorcycle(s): 2010 250 (track), 1992 250, 2006 R6 (street/track), 2008 R6 (track) Posts: Too much. MOTY 2015, MOTM - Nov '12, Nov '13	STOP! Do not ride your bike John!!! Get someone who knows how all the parts go together and can reinstall everything properly. 1st off... Pads just don't fall out!!!! There is a pin in the caliper that holds them in place. If that is broken or not in installed you will have safety issues. 2nd... When removing a wheel and then reinstalling it, resetting the brake system is 100% normal and not really a problem. When reinstalling the wheel the rear brake pads may need to be spread apart giving yourself room to work and align the axle and all other parts. So just after reinstall, the rear brake doesn't work until pressure is built back up. If you don't know how to do this, the get help from someone who does know! STAT!!! __________________________________________________ Goal: Shake A Million Hands \| Look through the corners \| Track Day Prep \| Closest track? \| The Mid-Ohio School Last futzed with by csmith12; October 27th, 2016 at 03:03 PM.
	1 out of 1 members found this post helpful.

October 27th, 2016, 02:12 PM	#4
Z1R rider ninjette.org certified postwhore Name: Roger Location: Mitchell, South Dakota Join Date: Apr 2014 Motorcycle(s): 1978 Z1R, 1999 EX250 Posts: A lot. MOTY - 2018, MOTM - Oct '16	The inner pads on the pregens are riding on a pin like Chris said, but the outer pad (the one against the caliper pistons) just sets in notches in the caliper body and fall out (or partly out) at the slightest provocation. Almost certainly the outer pad slipped out of it's notch and is binding when applying pressure with the brake pedal. Make sure it's all put together properly before riding. __________________________________________________

October 27th, 2016, 02:34 PM	#7
Z1R rider ninjette.org certified postwhore Name: Roger Location: Mitchell, South Dakota Join Date: Apr 2014 Motorcycle(s): 1978 Z1R, 1999 EX250 Posts: A lot. MOTY - 2018, MOTM - Oct '16	The washer should be facing out on both sides, you should see an alignment mark that will line up with the marks on the swingarm. I don't remember for sure the positions of the spacers, you can look them up on a parts fish. http://www.partsfish.com/oemparts/a/...ar-wheel-chain __________________________________________________

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October 27th, 2016, 02:06 PM	#3
jcmd13 ninjette.org member Name: John Location: Greenville, Tx Join Date: Oct 2016 Motorcycle(s): EX250F Posts: 15	I'm not diving it, however I did a little to test it. It appears to be riding fine just the back break isn't connecting. I can't figure out why the whole mount flexes when the brakes are engaged. Or why the axle was so much more difficult to put back on

October 27th, 2016, 02:23 PM	#6
jcmd13 ninjette.org member Name: John Location: Greenville, Tx Join Date: Oct 2016 Motorcycle(s): EX250F Posts: 15	It was the smaller pad that just sits in there. I think I got it aligned correctly but I'll recheck it. The spacers are what I'm worried about. There is one on the right side that has a lip around it, I have it lip facing out. The other side is just round so I stuck it in there. Then my chain tensioners have a washer welded to them that I have facing in towards the wheel on both sides. Does this sounds right?

October 27th, 2016, 05:20 PM	#8
jcmd13 ninjette.org member Name: John Location: Greenville, Tx Join Date: Oct 2016 Motorcycle(s): EX250F Posts: 15	That is probably the problem then. I'll pull it tomorrow and see if it's better

October 27th, 2016, 11:32 PM	#9
Mohawk ninjette.org guru Name: Chris Location: Bristol, UK Join Date: Feb 2016 Motorcycle(s): ZZR250, VFR800 Posts: 478	I thought I'd help by locating a how to video on YouTube, but just tried half a dozen & they are so lame, I gave up. All the right info is there but not in one simple video. Check your caliper, it's assembled wrong, do a search for an online parts diagram like this, which will show the layout of the parts & download the service manual from this site to get a full instruction. Parts http://www.kawasakioriginalparts.com...-F9&country=US Be careful.

October 28th, 2016, 07:04 AM	#10
jkv45 Rev Limiter Name: Jay Location: WI Join Date: Jul 2013 Motorcycle(s): '06 SV650n, '00 Derbi GPR, '64 CA77 Dream 305, '70 CL450 Scrambler, numerous dirt bikes Posts: A lot. MOTM - Jun '18, Oct '16	Read through this section for more info about the brakes - http://faq.ninja250.org/wiki/Brakes Info about rear wheel removal and installation - http://faq.ninja250.org/wiki/Removin...the_rear_wheel Make sure everything is assembled correctly and the chain is adjusted properly before riding.