Lately when I start I really need to mess with the throttle to keep the thing running. RPM's go up and down. I hadn't noticed this until just the last few weeks.
Heres' what I know.
I am the original owner since early 2000's.
I have cleaned or replaced the air filter a few times and maybe the plug once.
I haven't needed to run it much lately since the snow is finally over (hopefully).
I have around 420 hours on it.
I have used it to mow a smallish yard and blow out the snow in the winter.
It has been quite cold here lately below freezing for a week or so.
I have replaced the gas filter within the last year.
I do notice that the filter is never full of gas. 50% full at best.
I have never cleaned the carb or used any additives.
The engine hasn't given me any issues up until now.
Does this sound like a dirty carb? Bad pump?
Water ice in the lines?
Should I be looking into getting some Seafood or other additive in there. What is the best way to get water out of the lines.
Any advice would be appreciated?