Going off at a tangent for those reading this thread,when a bike manufacturer builds a bike they have to submit it to the TUV for an emissions test,now they know the rules of the game before they turn up the test is done give or take a few hundred revs at 4250.

So to cheat the test the manafacturers build a fuel map putting as little fuel as possible in at the above setting,giving less emissions,so when you buy any after market fuel mod be it Kev's or the dozens of others versions like his for other models or a PC/Rapid Bike or even a Rexxer what they do is blow fuel into the mid range where the motor is starved of fuel giving an instant response.

Hence why with the gap in the middle filled in it has connected the first part of the fuelling to the last,when I fitted Kev's mod it made a huge difference in the said midrange took a little bit of adjusting to find the optimum but didn't take more than an hour of riding,it's more complex than that but I'm trying keep it in laymans terms.

Anyone looking at a PC,I only bought one because it was cheap and I'm a tinkerer performance wise there's little in it,the PC just make's the bike more civilised with the fuel injection but it's not life and death.

Hey chaps,

My "herd mentality" remark was only intended in response to waynovetten's post that suggested that I must be some kind of imbecile for daring to say I was unable to perceive a difference with Kev's mod. Apologies to anyone that thought I was putting down the forum membership.

In general, this has been a great forum, and I don't want it to seem I am critical of the key members on here, but that post left me a lttle "miffed". :)

Also, I spoke to Kev and we're both good. I totally believe that the units I received were fully functional, and that in most cases they make a marked improvement. Kev was very helpful, very understanding, and very kind in offering a refund.

I would like to point out that in my case, I've never had a problem with the running of the bike. Maybe others, who have felt their bikes are not running well, gain more of an improvement with mods or PCs. In my case, my reason for going for the mods was 100% down to the "suspicious" dyno run I had done. All I wanted was to be confident that the bike was not going to suffer any ill effects from running stage 1 and 2 filters. So it's not that Kev's mods didn't solve a problem with the running, as I didn't have one in the first place. When I spoke to Kev, his advice was that if it seemed to run the same, then it wasn't too lean and the mods weren't needed. Simple. So, I don't know why my bike seems to run OK without mods, or why there was no change for better or worse with the mods, but I do agree with Kev that there's little point in spending money on something that doesn't appear to be needed. I still don't know if the bike is too lean, but Kev assures me that he knows of many XTs running stage 1 and/or 2 without extra fuel, so I am happy to put away the toolkit and leave it alone.

Thanks again to all posters, and a big thanks to Kev for his assistance and generosity. Sorry to be that 0.1%!

:thumbsup:

Some times things in life can not be explained, I know if I had the bike & could do some of my own A/F ratio testing I would know what was going on with the bike.

Question.....
 

Perhaps this bike has already had some mods?????? Just a thought....