It's the same plug that came with bike , got bike about 6 months ago from dealer
They was meant to do full service , but I did change over to new plug as I thought it may have been problem , but still had issue, so put old plug back in as was a better quality plug , bike had a little box under seat witch replaced air switch on air box , I've taken that off as well , but still cuts out every now and then
On doing idle rpm at first was 1320 ish now is 1470 ish
Now waiting for next ride to see if this has sorted it
Cheers Neil

Sounds like you've taken off one of Kev's mods that most of us pay to put on!!..post a picture maybe to confirm ?..

What kinda condition is the air filter like?

May not be related but have you thought about running Redex through the fuel system?..cant hurt none..

K&n filter in great condition just cleaned and oiled, box had 5 mini switches set in different ways changed settings , or so the information said off internet, it was set to 100% , TBH it's made no change with it off , only on start up I seem to now have choke as the revs are a bit higher on cold start , power wise no change
Don't back fire as much as well on run down ,
Cheers for your reply

1470 rpm is much more like it. 1320 rpm is too low for a reliable idle and on a quickly closed throttle, going down through the gears, cutting out will occur now and again.

Was the box something along these lines...

http://www.nitroxchips.com/eshop/images/IMG2723.jpg

Not the greatest bit of kit. Effectively do the same as a Kev Mod but the setting process is more hit and miss, partly because they are generic (so the resistances don't necessarily suit the XT's AIT sensor range) and partly because they are not infinitely variable within a given resistance range, only offering fixed steps in resistance. The biggest issue is nobody has (AFAIK) ever put one on a dyno to see what they do and whether the work effectively. Kev's mod has been thoroughly dyno and road tested and the evidence clearly shows it does what it says on the tin.

Anyhow, I reckon the up in idle will sort it...

Your very good exactly the same box , thought it was crap , I've heard about this Kev mod but TBH how and where do I get one , cheers for on going help

pm Kev himself..he offers a discount if you buy both his mods at same time. Takes a week to come n an hour to fit both..if your slow like me..

Silly question
Is his forum name just Kev ?
😂

take a look in the tech sction...ASK KEV...

Thank you

You need to become a "supporting member" to access the above section. It only cost a tenner for a year and there are loads of other benefits. See the links in my signature line.

Just out of interest Neil - What model year is your bike?