My TB42 has been getting ever so slightly down on power in the last few weeks.
Last night the old girl got real bad real quick. Will start fine and rev up but does not want to stay there idling. I have to keep feathering the throttle as the revs will just die down and stall. Occasionally it will idle with the hand throttle pulled out(but only up around 1500 rpm-- used to idle around 700 beautifully till yesterday) but then if I put it in drive it dies straight away unless I feather the throttle. It'll drive fine for about 1 minute then die. Feels like a fuel blockage?
I got a new filter this morning and fill fit that and have a look at carb this weekend. (carb was completely rebuilt about 18 months ago and been running sweet till yesterday).