A forum for owners of Yamaha TTR250 trail and enduro bikes!

Members Login
Username 
 
Password 
    Remember Me  
The TTR250 FAQ web pages -> TTR250 -> Repairs and maintenance -> New wheel bearings, seals, spacers plus chain and sprocket set
Post Info TOPIC: New wheel bearings, seals, spacers plus chain and sprocket set
TTRfan


Super Guru

Status: Offline
Posts: 8607
Date:
New wheel bearings, seals, spacers plus chain and sprocket set
Permalink  
 

My 325 looks after me very well so, with an MOT soon due, I decided to treat it to some new bits biggrin

There was a bit of play in the rear wheel bearings so I stripped them out and the cause was obvious. Water had got in and, with it, the dreaded rust no

The cause of the water ingress was grooved spacers allowing water past the seals (which need to run on a flat surface to work properly) and into the bearings. See comparison of old and new spacers below:

Spacers and bearings 001.jpg

 

The front sprocket was hooking and the rear one was looking a bit worn so the TTR has also been treated to new chain and sprockets. I use 14/48 gearing on the 325 which is just about perfect for the Devon green lanes.

I also treated the TTR to some nice new chrome countersunk sprocket bolts. Just have to put it all back together when I have finished my cuppa biggrin

Spacers and bearings 002.jpg

 

Just need to check lights etc and then book it in for MOT.

Brian



__________________

Exeter, Devon, UK

http://www.ttr250.com  - The one and only dedicated TTR250 FAQ!  

TIP: For easy viewing bookmark the "Recent Posts" view - http://ttr250.activeboard.com/p/recent/ 
Cubber


Super Guru

Status: Offline
Posts: 2610
Date:
Permalink  
 

MoT time soon returns - unless pre 1961 and then they don't need one. biggrin

It's amazing that the spacers are so grooved by rubber.
Have they been running "dry" - would they be better smeared liberally with grease, regularly? confuse

Jezz passed my TTR's MoT with a clean bill of health so I think yours will be OK Brian.

Martyn

 



__________________

You're never too old to learn something stupid

East Budleigh. Devon
TTRfan


Super Guru

Status: Offline
Posts: 8607
Date:
Bit of a surprise!
Permalink  
 

They only get cleaned and greased when I have the wheel out Martyn. I guess my TTR is a bit like the cobbler's shoe disbelief

When putting the wheel back in, I thought the chain wasn't sitting properly in the lower guide and found this bit of tree wedged in. You can see where the chain had been running on it.

Not sure how it got in there but I had quite a job getting it out!

Wood in chain guide.jpg

 



__________________

Exeter, Devon, UK

http://www.ttr250.com  - The one and only dedicated TTR250 FAQ!  

TIP: For easy viewing bookmark the "Recent Posts" view - http://ttr250.activeboard.com/p/recent/ 
ttboof


Super Guru

Status: Offline
Posts: 1481
Date:
RE: New wheel bearings, seals, spacers plus chain and sprocket set
Permalink  
 

nice the I'm sure the ttr feels better .

I did my lower shock bearing yesterday and lubed/cleaned everything else while I was at it .

I fitted an all balls set of spacers a while ago and just lube em up each time I fit a tire about 4 times a year .still find a bit of water in there

Got a day off work today so heading out to see how it goes 



__________________
Page 1 of 1  sorted by
 
Quick Reply

Please log in to post quick replies.
The TTR250 FAQ web pages -> TTR250 -> Repairs and maintenance -> New wheel bearings, seals, spacers plus chain and sprocket set


Create your own FREE Forum
Report Abuse 		Powered by ActiveBoard