Help i can't work it out

[89KElaser]

hi everyone,

my 89 KE laser 1.6L (carb) has chucked a wobbly!!!! when idling, when it wants to, it runs unevenly i have checked the following:

distributor cap, rotor, plugs and leads
vacuum lines
compression
valve clearances
fuel filter,carby and pump
EGR valve
plus numerous other one way valves

it accelerates great and runs at normal speed no problem

i am at a complete loss, anyone have any ideas???? :