ninjette.org

Go Back   ninjette.org > 2008 - 2012 Ninja 250R > 2008 - 2012 Ninja 250R Tech Talk

Notices

Reply
 
Thread Tools
Old December 20th, 2018, 03:38 PM   #1
nocturncal
ninjette.org newbie
 
Name: Cal
Location: San Francisco
Join Date: Jun 2017

Motorcycle(s): '09 Ninja 250

Posts: 5
Trouble With Rear Wheel Adjuster Bolt

Hello all,
I have a '09 Ninja 250.

Recently, I noticed that my left rear adjuster bolt was missing its cap and 2 nuts that are used to align the wheel. I bought new ones, aligned my wheel, and then went to ride it.

After riding for about an hour, I went to look at the bolt and the left rear adjuster bolt was bent again! the cap and 2 nuts stayed on the bolt this time though.

This is the first time I've tried aligning my wheel by myself, and am wondering what is going on. Any help would be appreciated.

What my rear left adjuster bolt looks like right now:

https://photos.app.goo.gl/qcGTGH8CT3ufp6ao6
nocturncal is offline   Reply With Quote




Old December 20th, 2018, 05:23 PM   #2
Ducati999
ninjette.org sage
 
Name: Ant
Location: Wooster
Join Date: Dec 2013

Motorcycle(s): Ducati 999 2012 Ninja 250r Ducati748 Yellow finally running 2003 SV650 S (SOLD)

Posts: 952
Very difficult to tell what went wrong from here in Ct but I would guess you did not tighten your axle bolt enough and the wheel was moving froward and back with de/acceleration. From looking at the picture you appear to have locked the nuts together and I will guess you adjusted your wheel and the chain was at the appropriate tightness. The only cause I can think of would be not enough torque on the axle nut. There is a slight possibility that the adjuster inside of the swing arm is broken/damaged but this should have been apparent when you replaced the cap and nuts. Also if the read wheel bearings were bad then you should have felt something while riding and even if they were missing, had the axle been properly tightened then the adjuster should not have moved.


Good luck and let us know if you need any further help

Ducati999
Ducati999 is offline   Reply With Quote


Old December 20th, 2018, 06:08 PM   #3
jrshooter
ninjette.org guru
 
Name: john
Location: placerville
Join Date: Apr 2016

Motorcycle(s): ninja 300

Posts: 270
mabe axle was loose, wheel moved to the rear, end cap spun sideways and sprocket bolt hit the end cap. other than that i cant see how it happened
jrshooter is offline   Reply With Quote


2 out of 2 members found this post helpful.
Old December 20th, 2018, 11:19 PM   #4
DannoXYZ
ninjette.org certified postwhore
 
Name: AKA JacRyann
Location: SF East Bay
Join Date: Dec 2011

Motorcycle(s): CB125T, Ninja250R racer, Ninja250R street bike, EX250F#1, EX250F#2, VF500F, CBR600RR

Posts: A lot.
MOTM - Nov '17
Also possible bolt/stud vibrated loose from adjuster block and backed out. Two possible causes of what happened.

1. adjuster-block stud - not really bolt because it doesn't have head and it doesn't spin. How did you install stud into adjuster block? Did you fully thread it in all the way and bottom out threads? A!so use red loctite to install stud fully into adjuster block so it doesn't back out.

On some bikes, adjuster bolt screws in & out of block to position axle. But not on this one; stud should be firmly affixed to adjuster block. Then larger nut moves block to position axle. Smaller nut locks big nut in place. Axle nut clamps whole thing togther.

2. axle-nut - yeah, axle may not be tight enough. What torque did you tighten it to? Really need a HUGE torque wrench to get it tight enough. With 18" breaker-bar, I have to add a 2-ft extension pipe. Look up torque specs in manual and get it that tight!



Last futzed with by DannoXYZ; December 21st, 2018 at 11:20 AM.
DannoXYZ is offline   Reply With Quote


Old December 21st, 2018, 04:17 AM   #5
Alex
ninjette.org dude
 
Alex's Avatar
 
Name: 1 guess :-)
Location: SF Bay Area
Join Date: Jun 2008

Motorcycle(s): '13 Ninja 300 (white, the fastest color!), '13 R1200RT, '14 CRF250L, '12 TT-R125LE, '15 CRF110F, '13 TT-R50E

Posts: Too much.
Blog Entries: 7
/moved to new-gen tech

(And Danno, Y U messing with the new guy? )
__________________________________________________
Montgomery Street Motorcycle Club / cal24.com / crf250l.org / ninjette.org

ninjette.org Terms of Service, ninjette.org Member Map

Shopping for motorcycle parts or equipment? Come here first.

The friendliest Ninja 250R/300/400 forum on the internet! (especially Unregistered)
Alex is offline   Reply With Quote


Old December 21st, 2018, 07:02 AM   #6
jkv45
Rev Limiter
 
jkv45's Avatar
 
Name: Jay
Location: WI
Join Date: Jul 2013

Motorcycle(s): '06 SV650n, '00 SV650n project, '00 Derbi GPR, '64 CA77 Dream 305, '70 CL450 Scrambler, numerous dirt bikes

Posts: A lot.
MOTM - Jun '18, Oct '16
Watch this video on adjusting and aligning the chain -

http://www.canyonchasers.net/video/howto/chain.php

Can't say I have any idea how that would have happened, but check everything over, replace what's required, and make sure you have the wheel pulled forward tightly and the axle nut torqued to the required spec (98 Nm or 72 Ft Lbs.)

Torque specs for New Gen - https://faq.ninja250.org/torque/ex250j/

More Ninja Final Drive maintenance and adjustment info - https://faq.ninja250.org/wiki/Final_Drive
jkv45 is offline   Reply With Quote


Old December 21st, 2018, 11:23 AM   #7
DannoXYZ
ninjette.org certified postwhore
 
Name: AKA JacRyann
Location: SF East Bay
Join Date: Dec 2011

Motorcycle(s): CB125T, Ninja250R racer, Ninja250R street bike, EX250F#1, EX250F#2, VF500F, CBR600RR

Posts: A lot.
MOTM - Nov '17
Here's video on adjusting chain on Ninja 250. Made by geezer, so you know it's right!

Link to original page on YouTube.

DannoXYZ is offline   Reply With Quote


Old December 23rd, 2018, 09:31 PM   #8
nocturncal
ninjette.org newbie
 
Name: Cal
Location: San Francisco
Join Date: Jun 2017

Motorcycle(s): '09 Ninja 250

Posts: 5
thanks all! i'll check the videos out n attempt to re-align it again :-D
nocturncal is offline   Reply With Quote


Old December 23rd, 2018, 10:08 PM   #9
DannoXYZ
ninjette.org certified postwhore
 
Name: AKA JacRyann
Location: SF East Bay
Join Date: Dec 2011

Motorcycle(s): CB125T, Ninja250R racer, Ninja250R street bike, EX250F#1, EX250F#2, VF500F, CBR600RR

Posts: A lot.
MOTM - Nov '17
Be sure to lock down the adjuster "bolt" into block with red Loctite, don't want it working loose.
Also record torque used for axle nut.

It doesn't look like it in video, but Dave Moss is buff geezer! In person, he's got Popeye arms and can tighten an axle nut to proper torque with his bare hands!!!

Last futzed with by DannoXYZ; December 26th, 2018 at 09:10 AM.
DannoXYZ is offline   Reply With Quote


Old December 24th, 2018, 08:06 AM   #10
jkv45
Rev Limiter
 
jkv45's Avatar
 
Name: Jay
Location: WI
Join Date: Jul 2013

Motorcycle(s): '06 SV650n, '00 SV650n project, '00 Derbi GPR, '64 CA77 Dream 305, '70 CL450 Scrambler, numerous dirt bikes

Posts: A lot.
MOTM - Jun '18, Oct '16
Quote:
Originally Posted by DannoXYZ View Post
Be sure to lock down the adjuster "bolt" with red Loctite, don't want it working loose.
Also record torque used for axle nut.

It doesn't look like it in video, but Dave Moss is buff geezer! In person, he's got Popeye arms and can tighten an axle nut to proper torque with his bare hands!!!
I don't think you want Red on that. I might use Blue (medium), but it's jam-nutted so that should hold it.

By using something between the sprocket and chain to pull the wheel tightly forward as you tighten the axle nut (as seen in the videos) it will snug everything. If you can move the adjuster plate at all, it's not pulled forward tight enough.
jkv45 is offline   Reply With Quote


Old December 24th, 2018, 08:17 AM   #11
jrshooter
ninjette.org guru
 
Name: john
Location: placerville
Join Date: Apr 2016

Motorcycle(s): ninja 300

Posts: 270
i believe dan means loctite the stud to the adj block. i gob rtv over the top of the jam nuts.
jrshooter is offline   Reply With Quote


Old December 24th, 2018, 07:44 PM   #12
DannoXYZ
ninjette.org certified postwhore
 
Name: AKA JacRyann
Location: SF East Bay
Join Date: Dec 2011

Motorcycle(s): CB125T, Ninja250R racer, Ninja250R street bike, EX250F#1, EX250F#2, VF500F, CBR600RR

Posts: A lot.
MOTM - Nov '17
Yes, not on adjuster nut part, but deep into adjuster block itself. Stud has already worked itself out twice already (assuming axle nut was tight enough).
DannoXYZ is offline   Reply With Quote


Old December 26th, 2018, 07:27 AM   #13
jkv45
Rev Limiter
 
jkv45's Avatar
 
Name: Jay
Location: WI
Join Date: Jul 2013

Motorcycle(s): '06 SV650n, '00 SV650n project, '00 Derbi GPR, '64 CA77 Dream 305, '70 CL450 Scrambler, numerous dirt bikes

Posts: A lot.
MOTM - Jun '18, Oct '16
Quote:
Originally Posted by DannoXYZ View Post
Yes, not on adjuster nut part, but deep into adjuster block itself. Stud has already worked itself out twice already (assuming axle nut was tight enough).
Gotcha. Is that just threaded into the block?

Still seems like some odd issues he's having.
jkv45 is offline   Reply With Quote


Reply




Similar Threads
Thread Thread Starter Forum Replies Last Post
Rear sprocket bent chain adjuster linkinpark9812 2008 - 2012 Ninja 250R Tech Talk 2 March 30th, 2014 08:52 PM
Trouble aligning rear wheel and chain CmichRider 1986 - 2007 Ninja 250R Tech Talk 11 June 20th, 2012 10:18 AM
Trouble refitting the rear wheel! Exeter250 1986 - 2007 Ninja 250R Tech Talk 8 May 5th, 2012 04:23 PM


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


Motorcycle Safety Foundation

All times are GMT -7. The time now is 07:28 PM.


remote server monitor
Powered by vBulletin®
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Except where otherwise noted, all site contents are Copyright 2016 ninjette.org, All rights reserved.