Let the buyer beware. It is legal jargon meaning you take responsibility for your own (trans)action and accept the consequences having entered into a contract freely.

take it back if your not happy i wish i had taken mine back when i first got the bike,It is great to ride when your giving it some on fast roads but around town it`s the worse bike i have ever rode(crap) and should never be sold like it which is a pitty realy because it could be so good if it ran right.
Andy

Hi guys,i've got an 08 XTR with race cans and K&N filters,also XTX wheels.
You said that it runs better with standard settings,have you got any mods fitted?
It's much better with the mods i've done but still jerks when going around roundabouts,no fun in the wet.Any body else fiddled with the mixture and how did she run after?Thanks,Chris.

surging
 

My 07 XT660X surges a lot, but having read all about this problem before I bought the bike I was expecting it to do so. It is around the 30MPH mark its at its worst, the speed is to high for second gear and too low for third, worse if the traffic is busy and keeps going from 25MPH to 30MPH all the time with no way for over taking. For mini round-a-bouts I use the clutch to smooth it out. Must admit I quite like the surging, makes the bike feel a little wild :-)

Jason

Hi mate don't listen to the dealers crap take it back..... tell them that Yamaha will replace the ECU under warranty. Do not mess with the Co2 settings as this will only make the bike worse but never better. Had the same prob myself ECU replaced and turned the bike into a proper hooligan like it should be!

As an XTZ owner I am glad I havnt suffered these problems. But I think its crazy that Yamaha can get away with this. Yamaha Dealers seem to be under the impression we are all thick. I have had this attitude before from delears and I think its a real shame. I bought my bike from Tamworth but will get it surviced at Alf England as they seem to have a good reputation.

off the topic a bit...sorry...you are right...think all Yamaha dealers go to same school...they do think we are thick...very fast and smooth when it comes to selling the bike...when something goes wrong, or they get chance to rip you off, they are just as "smooth"...

Hi there, new member here from Zurich. I haven't got a bike yet but have my heart set on a XTR - a cheaper alternative to a KTM 690 enduro. But I am a little worried about this surging issue. Is it all bikes suffering from this to a larger or smaller extend, or is it only a few?

:hello: and :welcome: to :660:

I wouldn't want to lie to you but, the surging issue is a characteristic of these bikes, however there are a number of them which do not soffer this problem at all.

The latest production engines as fitted in the Tenere have totally new remapped ECU which has shown ZERO surging. We hope same mapping will be applied to the new 09 XTX/XTR models, however, even a little surging can be tweaked to a near optimum result, and you will find all these tips in this forum amongst our technical threads.

All I can say to you is go and try one and see if you like it.

Good luck

xtx 660 surging
 

I had a power commander fitted and its as good as you will ever get from a big lump. It is nice to ride now at slower steady speeds and wicked when opened up. Cost me �495 fitted and dyno set. Splint.xtxxxx660.