LifanForum.com

General Category => Chit Chat => Topic started by: hungdaddy on April 12, 2008, 06:51:19 PM

Title: 125 J
Post by: hungdaddy on April 12, 2008, 06:51:19 PM

Hi guys, recently bought a 125 J from my uncle who has had it from new since December, he used it to learn on...

When I rode the machine yestederday for the first time, it feels as though the rear end shifts, wobbles every time you open throttle slightly or change gear..?/

Any idea's?

David in the UK

Title: Re: 125 J
Post by: Buyingchina on April 12, 2008, 08:06:53 PM

Quote from: hungdaddy on April 12, 2008, 06:51:19 PM

Hi guys, recently bought a 125 J from my uncle who has had it from new since December, he used it to learn on...

When I rode the machine yestederday for the first time, it feels as though the rear end shifts, wobbles every time you open throttle slightly or change gear..?/

Any idea's?

David in the UK

HI guy. I would get the back end  up off the ground and check for a loose wheel bearing or loose swing arm bearing. Its most likely that one or the other is the culprit, if not both.

When you say "shifts" I assume you mean side to side?

Edit: Another possibility is that the rubber cushions between the  sprocket carrier and the wheel hub may be worn out.

Check it out and let us know what you find.

Buyingchina

Title: Re: 125 J
Post by: hungdaddy on April 13, 2008, 07:27:34 AM

Well, the bike is only 4 months old and I was hoping it was more likely to be a slack chain than anything else...

I didnt realise Lifan had such a following in the US!!!

Its picking up here in the UK too...

Title: Re: 125 J
Post by: Buyingchina on April 13, 2008, 08:38:19 AM

Quote from: hungdaddy on April 13, 2008, 07:27:34 AM

Well, the bike is only 4 months old and I was hoping it was more likely to be a slack chain than anything else...

I didnt realise Lifan had such a following in the US!!!

Its picking up here in the UK too...

Its possible that to much chain slack could be adding to your problem. The side to side "shift" could be accentuated by the chain  whipping from slack to tight during  gear shifts. The wheel wobble  causes me to wonder if its a perception or actual movement of the wheel. You should check this as mentioned in the previous post.

Chain slack is  easy enough to check. Heres a link that shows the SIMPLE method I use on my LF200III. You should check your manual for the factory recommended chain slack specification that you will find to be very close if not identical.

Heres the link to my post on Lifancycle dot com about "Chain Adjustment and Lubrication:

 http://lifancycle.com/viewtopic.php?f=6&t=36

Buyingchina