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| Wilson123 |
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Wilson123
Nearly there...
Joined: 19 Jun 2009
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 Posted: 12:43 - 29 Jan 2010  Post subject: YBR 125, Slack chain |
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My chain is slack as anything, when I gear down it rattles about and slaps things, it's annoying, I thought it was my gearbox but I just greased up the chain and realised how slack it was
How to de-slack?  Thanks
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| neil. |
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neil.
World Chat Champion
Joined: 24 Feb 2008
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| Posted: 13:12 - 29 Jan 2010 Post subject: |
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Back off the adjuster nut on the back brake rod, Loosen the brake rod torque arm nut, loosen the axle nut, then the wheel can move back/forth. Undo the locknuts (2) on the chain adjusters and then turn the bolts (3) on both clockwise in equal amounts until you get the tension you want (about 1 to 1 and a half inches of movement where the chain crosses the back tyre). Then check the wheel is aligned properly by looking at the markings on the chain adjusters (1) - should be the same on both sides.
When it's good, tighten both locknuts on the chain adjusters, then the axle nut and then the brake rod torque arm nut. Adjust the brake pedal free play by tightening the adjuster nut on the brake rod until you get an inch or so movement in the pedal and the back brake doesn't drag when there's nothing pushing the pedal down.
Finally, check the brake light comes on when it's supposed to and if it doesn't, you can adjust the switch which is near the pedal (above it under the fairing - its a nut you turn that sets when the light comes on depending on how far down the pedal is pushed).
https://hondacg125.awardspace.com/images/servic12.gif
It sounds more complicated than it actually is.
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CBT February 2008 | A2 June 2008 | Yamaha YBR125 (written off) | Honda CBF125 (current) |
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| Feasty |
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Feasty
World Chat Champion
Joined: 01 Nov 2006
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| Posted: 13:19 - 29 Jan 2010 Post subject: |
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Pull your wheels further apart.
It sounds simply and it pretty much is! 
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Previous: Aprilia Habana Retro 50cc (beauty), Yamaha SR125 (fell apart), Honda XR125 (nippy little commuter), Honda SLR650 (Geewhizz), Yamaha Diversion 900S (Smoooooth) written off courtesy of a stupid escaped horse.
(7 year gap), BMW F650 (Relaxing ride). Aprilia Caponord ETV1000 (Big and bold). Yamaha FZS600 (got me in trouble too quick!).
Current: Yamaha TDM 900 (Comfy, light but big, power when needed). |
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| P.addy |
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P.addy
Red Rocket
Joined: 14 Feb 2008
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| Posted: 14:37 - 29 Jan 2010 Post subject: |
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| neil.martin wrote: | Back off the adjuster nut on the back brake rod, Loosen the brake rod torque arm nut, loosen the axle nut, then the wheel can move back/forth. Undo the locknuts (2) on the chain adjusters and then turn the bolts (3) on both clockwise in equal amounts until you get the tension you want (about 1 to 1 and a half inches of movement where the chain crosses the back tyre). Then check the wheel is aligned properly by looking at the markings on the chain adjusters (1) - should be the same on both sides.
When it's good, tighten both locknuts on the chain adjusters, then the axle nut and then the brake rod torque arm nut. Adjust the brake pedal free play by tightening the adjuster nut on the brake rod until you get an inch or so movement in the pedal and the back brake doesn't drag when there's nothing pushing the pedal down.
Finally, check the brake light comes on when it's supposed to and if it doesn't, you can adjust the switch which is near the pedal (above it under the fairing - its a nut you turn that sets when the light comes on depending on how far down the pedal is pushed).
https://hondacg125.awardspace.com/images/servic12.gif
It sounds more complicated than it actually is. |
this guys got it...
but if thats tl;dr..
loosen rear wheel, use adjusters and pull wheel back more, check its straight and tighten up.
Ideally you would want to be sitting on it and have someone adjust it.. as when you sit on it, the chain will become less slack anyway. |
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Old Thread Alert!
The last post was made 16 years, 62 days ago. Instead of replying here, would creating a new thread be more useful? |
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