One cylinder not seeming to heat up as quick as the others...

[toads]

I have this problem intermittently and it usually turns out to be an oiled plug. If you leave the bike on the sidestand it can happen more often even. I have taken to using the mainstand all the time and that seems to have solved it. So firstly check the plug, if it's looking OK and not wet and black then you could have a lead problem .... that too is easily fixed once you have got a new one.
Good luck, I hope this helps.

hey thanks for this advice, my son has a honda cbr 250rr and it has had the same problem, despite replacing the plugs and leads etc, he noticed a bolt was missing from the side stand making it lean over more than it should, it doesn't have a centre stand but we will look out for some racing stands for it, cos it obviously will continue to foul the plug. cheers for sharing!!

[FROSTY:Me]

Devil --Im 100% certain your problem is what I told ya. You mite need a new plug cap because the old ones screw mite have broken off
good engleesh aye?
For the record -the plug lead had pulled away inside the plug cap of devils bike so it had to ark about 5mm to run the plug