ok did my oil check and seems to be good output is good no major heat etc and spark looks strong and to be honest is not that old so next thing I guess is the ECU mixture? I had a look at it today and the nob on the side is all the way to the right ie I can not turn it clockwise any more so tried the otherway (anti cw) and the idle went slighlty up (only about 4-5 clicks) hmmm could it be running too lean ..I dont get much info on the ecu in my manual but will try and borrow a co2 meter if I get a chance otherwise will need to play by ear anytips here??

thanks again