Sthil?? Chinese cr*p; or Stihl?
This problem can occur on any type of chainsaw (Husqvarna, Dolmar, Solo etc.) and not only on Stihl.
There could be several problems.
1) Maybe the clutch is worn out or even broken
2) Piston rings might be worn out
3) Piston and cylinder might be worn out (these two are very expensive)
4) Fuel filter and fuel lines as well as fuel vent (if there is such on your type of chainsaw) might be clogged
5) Air filter might be clogged
6) Ignition coil might be faulty...
I had a similar problem on my Stihl 041 AV. I replaced the clutch (took the good clutch from 031 AV and installed it on 041 AV - it fits and works great, btw :D) and piston rings.
When your truck loses power, the ABS system loses power.
A chainsaw (or chain saw) is a portable mechanical saw, powered by electricity, compressed air, hydraulic power, or most commonly a two-stroke engine. chain saw: portable power saw; teeth linked to form an endless chain Used for cutting shrubs, bushes and trees.
If a car shakes and loses power when idling it can be the spark plug. If a spark plug is fouling, it can cause power losses.
A power loss can be from a dead or almost-dead battery. If the car loses power on a hill, it might be a fuel injector or fuel pump, if I'm not mistaken.
The power to move the cutting blade is provided by the motor or engine of the tool.
Inflation
Plugged fuel filter? Plugged air filter? Loose timing chain? Plugged catalytic converter?
It loses power because going uphill is harder then going downhill therefore causing it to use more gas and then making it lose power bit by bit.
if cutting in and out while still power in car may be engine computer or computer wiring. if all power cutting out then its possible car battery cables.
Random Access Memory (RAM) is the kind of memory that loses its content when the computer power is turned off.
Is the engine running ? no
Try changing the fuel filter.