He is quite correct 80 HP no problem on the quads, they are boring them to 105mm & stroking the cranks, gas flowing the heads, bigger valves, high lift cam, big bore throttle body, ignition advancer, PCIII & some of them are even turbo charged.

Thanks Kev. I thought I was going to need to to do some explaining there for a minute.

The 80 bhp claimed is from serious competition racers spending serious cash and reliability is compromised to say the least.

Thanks for the feedback guys. Not many people know these bikes like you guys do so your approval really means a lot to me.

Great review. I also own a 2005 XTR and share your viewpoints. Just three comments: I also mounted a 14 tooth sprocket, it runs a lot better, even thought of going down to 13 for serious fun off road (I have my bike with T63 and Metzeler Karoo 2 in the front) so a "speedo healer" would be perfect - can you please explain what it is and how to get one in Spain (I live in Madrid). Right now I rely on the GPS to check the actual speed. You can have a lot of fun with this bike on the road, part in widding roads, I did 120km yesterday around Madrid, just fine, the road tyres add an extra emotion as you never know... without speeding up...

Finally, I am surprised you didn't change the handlebar, the stock one is a bit narrow in the ends. I have a magura with "elevators" which allow to run standing up off road.

I mounted the kev mod a few months ago and still surges a bit, although it runs a lot better. Probably will install a DNA 2 filter soon... (co=20, mod=-5)

Cheers,

You never really get rid of the surge completley not even a Power Commander can do that, but with adding more air & fuel the bike does run better the stage 2 filter is worth the extra money.

Speedo heeler can be bought from this link, just make sure you tell them that it is for a Yamaha XT660X & your year model.
http://cgi.ebay.com.au/Speedo-Healer...QQcmdZViewItem

Thanks Kev - very helpful as usual! Cheers,

If you want to lower the gearing even more, I would buy a 47 tooth rear sproket and use it with the 14 tooth front. From what I have read it takes the strain off the chain and it is easier to change the back sproket if you need taller gearing for a road trip. I am going to try that combination today. You would need a strong chain though.

I did fit renthal bars that are both wider and taller than the originals, for off road riding. (Forgot to mention it for some reason) I want to fit bar risers as well but I am conscerned the clutch cable and some of the electricals will be too tight.

One side effect I did notice was that with the renthal bars and the Acerbis aluminium and plastic handguards there is really not much vibration. I have only had numb hands once and the reason was that the left handguard allen bolts had vibrated loose (or some kid had tried to take it). I have read of people selling their xt because of vibration. Another guy on this site has had a few GPS's die due to vibes.

If anyone out there is experiencing excessive vibration, fitting heavy duty handguards may solve your problems.

Hi Napalm.

I'm the one with the vibration problems trashing my GPS system.

I think I've got around the problem now by installing a Touratech Holder kindly donated to me by Garmin Uk for all the grief I've been having.

Seems to have done the trick. Saying that, I've only done 300 miles since installing but the last sat nav died after 160 miles last time.

http://www.touratech.com/shops/008/i...verriegeln.gif