Here's an odd thing. My lower chain tensioner (xt660x 2005) has completely gone. No not just the roller cushion the whole lot including the bracket. This bracket is welded to the frame upon which a spindle sits then the cushion roller and retaining nut etc.

So I will be speaking with Yammy tomorrow to see what can be done, but as the main bracket is welded to the frame I do believe it's not a part they can supply.

The chain just misses the pipes when running but does make the odd chime when shifting down gears down. Makes a lovely grating sound when pushing backwards to park in my drive.

Has anyone else had this problem and if so what was your solution?

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You must have gradually worn out the spindle to smitherins and then when there was no more spindle the chain must have started to cut into the spindle bracket, and that together with the vibrations would have worked the whole thing loose to the point where it must have come off all together.

I can only assume that by now your chain must be fugged too.

Goodness, so how many miles or kms were on this bike??? I now have over 23k kms in 2 years so I guess that I must change chain and sprockets soon??? Ciao

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(Now sold on, sob) 2011 Blue XT660X with gold wheels, was 26,500 km.
Engine mods: K&N Stage 1 filter, DNA Stage 2 filter, snorkel removed, Kev fuel mod fitted.
Plus: smoked Puig screen, Yam aluminium sump guard, Yamaha / Acerbis handguards, Givi Trekker aluminium side cases, Leo Vince X3 cans plus Kev front fork mod and Fender Xtender. Just fitted Michelin Road Pilot 3 tyres.

SOLD the XTX for a Super Ten 1200. And just bought a Raptor 700 so staying on here for some tips....

Have you got shorter dog bones to raise the rear? This puts a lot more strain on the roller, as does a larger rear sprocket?

There was a thread a while back about mashed up lower rollers, but I don't recall broken brackets. However, it does give some insight into possible mods to prevent it happening in the future.

http://www.xt660.com/showthread.php?t=7646

For now though, I guess you'll have to get a bracket made up and welded in place, which is a bit of a ball ache, but do-able.

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you`re not alone badga:

this guy`s mecanic invented a spring loaded bolt on solution
http://www.xt-660.de/forum/viewtopic.php?f=9&t=13801
other case:
http://www.xt-660.de/forum/viewtopic...t=4441&start=0

we recently did have various similar cases in the german forum.
Options: weld a new bracket to the frame or make your own construction from angle and fix it with with the 2 screws of the boot protector (no welding)

Interesting is the fact, that it only seems to happen on XTX`es

good luck,
Joe

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Saludos,
Joe
http://web538.ypsilon.ibone.ch/index...d=89&Itemid=42

neoprene fork protectors Acerbis / blue Puig wind shield / fork spacers 24mm / snorkel and resonater out / Acerbis hand protectors / 25 mm bar risers / 12 V outlet / "soft throttel mod" / engine protector home made / PC III USB / DNA ST2 / K&N ST 1 / BSM "Future extreme" exhaust / Wilbers "Adjustline" Shock / XTX links / luggage carrier home made / automatic chain oiler home made

Gents, thanks for the quick replies, Larry (the bike, it's a long story lets not go there) has done just under 46000 miles.

No mods to that area so no extra stress involved.

Joe I will use google translate to see what this chap has done but the bolt idea sounds best to me, as I already had it welded once. I wonder if i can get away with just losing a link out of the chain altogether.

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We're part of the solution... don't make us part of the problem!

I guess that`s not an option as you need the free play. Otherwise you`ll put a lot of tension on the chain an bearings once the swingarm moves upwards.
I will ask these guys about some more detailed fotos.
Some fotos seem to be expired.

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Saludos,
Joe
http://web538.ypsilon.ibone.ch/index...d=89&Itemid=42

neoprene fork protectors Acerbis / blue Puig wind shield / fork spacers 24mm / snorkel and resonater out / Acerbis hand protectors / 25 mm bar risers / 12 V outlet / "soft throttel mod" / engine protector home made / PC III USB / DNA ST2 / K&N ST 1 / BSM "Future extreme" exhaust / Wilbers "Adjustline" Shock / XTX links / luggage carrier home made / automatic chain oiler home made

Joe that would be great, I'd really appreciate it, I did have a look and all the solution pics seem to have expired like you say..... thanks again for your help maybe they could email them to me at bbgrafix@hotmail.com

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We're part of the solution... don't make us part of the problem!

No no no matey, it was all in tact, spindle, roller and retaining nut. I had it welded before as it had a crack in the main bracket which bonds it to the frame. Chain is good and it still rides ok somehow. When parked the chain touches the near side pipe but the slack goes when riding. I'm hoping to either get something better made up or do away with a link in the chain. Will see what they say at woking Yam, they are a great bunch. ;0) I must say though for something that takes a lot of pressure it sure is a thin crappy arrangement. Check that German guys pics that Joe has provided. Same issue, but with a low miles bike. Will let you know how I get on of course.

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We're part of the solution... don't make us part of the problem!