as above, right when i start it up from cold it will not idle under 1100 revs but will tick over fine on that rev

as its getting up to temp it starts to doing its own thing, the revs will start climbing so i have to turn them down abit, a few seconds or minutes later it will start dropping again so im alway adjusting the revs.

right then, it moves on to another stage then where it will go up to 2000rmp hold for a few seconds then the revs drop till it cuts out.

if i turn the ruvs up to just over 2000rpm it will just catch it before it cuts out, and its pulsesating between 1000 to 2000rpm in perfect timing say every second up down up down up down etc

this problem is cooking my head could it be the dizzy or sensors maybe?

if i start it again tommorow it will do the same all over again

any sugesstions will help alot

thanks diesel