chain tensioner/guide
 

hello chaps,has anybody had any problems with the chain tensioner/guide just behind the front sprocket ,mines a 07 xtx with 2000 miles and mine has fell t bits
now i bought a new one and when i tried t fit it ,it wouldntgo straight on,the gap between where the bolt goes in and the rubber chain guide wasnt big enough,so i got my son t sit on the bike which made the gap bigger and then fitted it,went for atest ride and after about 3 miles the new one fell t bits.
the tensioner is made up of 3 parts ,small metal inner tube,white plastic sleeve and like a spongy ring,ive had raising links fitted from 700 miles and just wondrin whether the extra height is reducing the gap between the tensioner and the rubber chain guide making the chain press harder on the tensioner and breaking it,ive also stiffened my rear shock a couple of notches about 100 miles ago (fat *******) any ideas !!!!!!!!!!!!!!!!!!!!!:Christo_pull_hair:

feel free to ask Kev, my bike was the older model with the adjustment at the end of the swingarm so I haven't got the foggiest.

Do you have some photo's?

sorry kev,the way ive described it makes it abit confusing ,if your looking at the nearside of the bike,look at the heelplate and directly underneath there is a bolt with the tensioner/roller fitted just under the chain,this is the tensioner im on about

sorry no photos

I think its to do with the chain tension and your raiser links. I had a similar problem with my XT660R when i fitted my raiser links but i just found that the chain had to either be slackish or tight. I think you have it tight which means its rubbing on the rollers too much.

Either that or is your roller rolling? If not you will need to strip it and grease it and place it all back on. When you turn the rear wheel get someone to look at it and the wee roller should be rolling freely with out stopping if the can is in contact with the roller.

Hope this helps

Had the same problem with my 2004 XT chain tensioner.
I have also risen the rear up as you and had the same problems.

Make sure that when you replace the tensioner+screw that the white/yellow roll moves freely with no obstructions and that the inner tube is oiled.
Also make sure the chain is not set too tight and you replace the inner white plastic tube in the right way.

One other thing regarding rear rising in combination with a much larger rear sprocket:
Due to the 48 sprocket i have fitted and the resulting greater amount of torque on the tensioner by doing wheelies, the tensioner on my bike has broken off completely only to leave a little metal edge at the place where it used to be.

still have to make an appointment to have a new one welded on. So be ware, it's not that strong...

hello maxwell,i ordered a new one on saturday but they said it would take a week,ill try loosening chain a bit see if that makes any difference

cheers mate

i do do lots of wheelies naughty me!!!!!!!!!!

Na naughty us. hahahaha

:bike:

had the same problem once I applied the OTR link raisers.
http://www.xs4all.nl/~mgraaf/xt660/xtketten.mpg
had to switch to the oem raisers again.
Do you use also different link raisers?

greetings from holland.

marcel

:YellowCrazy_J8GDC6:

hello marcel ,yes i do use raising links and have done since i first bought the bike,iam just wondrin whether i have had the chain to tight

cheers bms

If you put your bike on a stand underneath the engine so the rear wheel lifts off the ground, then you should check the space between the roller/chain/drive chain guide. There should be some space left. Could you please post a picture of this?

Chain Tentioner
 

I am having the same problem , but the pipe that goes up to my Akropoviks , is iterfearing withe the rubber.
It stops in turning and melts it , I tried a teflon roller , but it melted it before i got to work.
My bike is also raised.
I have filled an alluminium roller now , but I dont think its going to last too long.
Anyone else found a solution yet?
Oh and once the roller wears down , your chain runs against the Exhast pipe on deceleration and rattles like a ***** on rough roads.

I have akrapovics and the roller just clears the pipe. Maybe you could sort your problem by loosening off all the bolts in the exhaust and having a fiddle so that the roller is cleared before bolting it all up tight again.

I now have Kev links on mine and the chain certainly its the roller, but no problems as yet. Maybe we should just treat the roller as a consumable? There should never be excessive strain on it- after all it's never subjected to the torque of the engine power as it's on the bottom run of the chain, unlike the rubber top one.

hello lads,fitted new roller,loosened chain went for a 100 mile ride and everything seems to be okay ,ithink havin the chain a little bit to tight has put pressure on the roller causing it to smash SO BEWARE !!!!!!!!!!!!!!!!!!!!!
dont have your chain to tight. :toothy4:happy days.

good job at least your all sorted now:eusa_dance:

if you're using custom link raisers, you chain roller needs to be changed also for a smaller one. For instance, you can buy one from OTR. You will also need to buy a new bolt for that.
I use the xtx raisers on my xtr; in this case you can use the oem chain roller.
On the attached pics you will see (from bottom till top) 1 OTR - 2. OEM XtX - and 3. OEM XTR link raisers.
The OTR give you the best lift, really skyhigh, but you need to change the roller, otherwise you will damage the drive chain guide and roller, especially when driving offroad (sorry xtx friend, no offroad for you; buy a pair of xtr wheels? ;()
The OTR roller even got a bearing, that's cool ;)
greetings from Holland,
marcel

Hi guys

I know this is an old thread, but i thought i'd add my solution for the sake of the guys still wanting to install the "raised links".

Kev warned me that i need to watch my bottom chain roller once i installed the shorter links to raise the rear. My roller was destroyed in no time. I could see that the reduced clearance caused by raising the rear made fitting a new roller impossible. On the bracket holding the roller, there is a hole closer to the frame (mine had a hole). It is smaller and lack the "welded on nut" at the back. I drilled this hole bigger (9mm i think_just check your roller bolt dia). I then removed the top roller, added a spring washer the same diameter as the inner chrome(?) bush(between the bolt head and bush, to make sure the roller turns easily), and bolted it onto the bracket with the help of a Nylock nut at the back. This seems to work for me..
I guess you don't have to remove your top roller, just buy a new one from Yamaha....or use your existing lower roller if you've read this before you do the conversion.

I hope the photo helps.

http://i493.photobucket.com/albums/r...g?t=1232390037

http://img.photobucket.com/albums/v4...tensioner2.jpg

The metal plate that holds the lower chain roller/guide has broken off the frame of my bike...
Is there someone who could measure it up so i can get a replacement plate welded on?
I would be very gratefull!! (my chain is now eating away at my exhaust pipe and centre stand...)

skorzeny

here you are.
Using raisers on a XTR will only work if you're using the original connecting arms that came with the XTX. If you're using the OTR one's than your chain tensioner guide will be distroyed, as well as the seal guard. Especially when doing jumps or stoppies when the rear wheel comes off the ground.

I used a roller bought by OTR, removed the bearings and fitted this into the genuine roller. Now the roller has got bearings so don't have to worry anymore about worn out rollers.
Changing the roller, just put the bike on its side and off you go ;)
The good thing about this you can now build your own custom chainguide bracket which should cause no problems anymore. Make it adjustable....

Ok thanks for all the pictures and info,this will make things much easier...
What do you mean by original connecting arms of the XTX?
If i make the bracket adjustable, can't i leave the OTR raisers on the bike without other adjustments?

if you make it adjustable than no problems with the OTR arms.

I am having the same problem got new one off OTR with bearings in it instead of the standard part and it dont seem to be working had it on about 2 days and already showing alot of wear ?

Bumping an old thread :rockwoot:

I found out today the XT 660 X I bougt is missing the lower tensioner. To be specific the whole metal part where it bolts onto snapped off. It did not have raised links by the way.

So have to figure out how to reconstruct a new tensioner and figured the easiest would be to just recreate the original and perhaps strengthen the base a bit. All I have to go by are the photo's here and it will get me a long way I think. Just wondering whether about a few more dimensions as the metal assembly is bent. Can anyone provide the red A (talking about the top line, sides should be 56 mm) and green B as shown in the picture? Thanks in advance!!!

http://i66.tinypic.com/33ct8o8.jpg

I was thinking of attaching this pully from ebay. It has the same dimensions as the top tensioner and the added advantage of bearings + obviously costs f*** all :D

http://www.ebay.nl/itm/Black-Chain-P.../261867245920?