Why does my chainsaw not start when hot?
When your chainsaw quits after it gets hot, you either have a problem with gas flow being restricted into the engine or with the spark. This is a common occurrence on older-model chainsaws. By replacing your spark plugs and keeping your gas lines clear you can reduce the chances of this problem recurring.
What causes vapor lock in a chainsaw?
Vapor lock occurs when the fuel (usually gasoline) within the fuel delivery system overheats and vaporizes too rapidly. The resulting excess gas bubbles accumulate to the point of actually blocking normal fuel delivery.
What happens if you overheat a chainsaw?
The air filter will eventually get to a point where it will become so clogged that it won’t let fresh air pass through. At this point, the engine will stop working because it cannot run without air. This will make the chainsaw overheat due to the lack of cooling fresh air.
Why is my Stihl Chainsaw not starting?
The carburetor might be clogged. A clogged carburetor is often caused by leaving fuel in the chainsaw for a long period of time. Over time, some of the ingredients in the fuel will evaporate, leaving behind a thicker, stickier substance. This sticky fuel can clog up the carburetor and prevent the engine from starting.
What are signs of vapor lock?
Vapor lock causes:
- Loss of fuel pressure (and flow)
- Loss of power.
- Stalling.
- Difficulty restarting the engine.
What happens when a chainsaw overheats?
How do you cool a chainsaw?
Hold the chainsaw by the front handle so the starter side is tilted downwards slightly. Brush off the entire starting, flywheel and cooling area, letting the sawdust fall away from the engine.
Is it normal for a chainsaw bar to get hot?
It is normal for the blade of your chainsaw to produce some heat. But it should not overheat or smoke. If you notice any overheating or smoke coming out of the blade, you should stop its use at once.