slawosz

I took this video: Doesn't particulary shows anything bad, as before - on gear when I use 70% or so of throttle, it does not react. The...

But arent some of those sympthoms (elbow blocked, spray pattern and clearances) would also happen on full speed idle?

Yes, both fuel filters. I squeaky-cleaned my tank last year, and after that I am adding lot of anti-bug fluid, so its unlikely its a fuel.

As @Tranona says, try cleaning the prop first, A heavily fouled prop increases torque which usually results in black smoke.

When you say new filters, you do mean fuel filter don't you. Your problem will likely be at the prop end as Tranoma has suggested or at...

Sound like classic overloading behaviour from dirty propeller - unlikely to be self cleaning. When you have so little power as with a...

Hi, I have issue with my Yanmar GM10. When on idle, its all good, the problem is with running on gear. The engine is running rough and...