I could certainly benefit from getting my K4 Carbs cleaned...........God knows when my bike last ran, or how it ran. When I stripped them off the bike and opened up the float bowls, I was astonished at the crap that was in there. One of the Floats has simply disintegrated......I quickly put the bowls back on and decided it 'was a job for later'. LYD (Like you do).
Where are you based?