The very idea that anything originating in stock form from the Stihl company as being “Ported” has to be false information. Cutting to the chase though it consists of no more than removing the baffles and making the exit hole around 70-80 percent of the area size as the exhaust port and retuning the carb for more flow. My muffler modded and tweeked 310 falls short of my last unmodified full stock 361.
These are the exact steps I follow to wood ports my chainsaws and got 10%-25% power gain. One more thing to add, if you are a homeowner, you might never need to woods port your chainsaw. If you use your chainsaw for milling, read our guide on portable chainsaw mill and chainsaw mill attachment for getting the most out of your chainsaw.
how to port a chainsaw exhaust Related Question:
What is Woods porting a chainsaw?
They typically include: opening up the muffler (by grinding, drilling, or adding factory port options), opening up the intake and exhaust ports (by grinding and polishing), lowering the jug by milling or using thin/no gasket to raise the compression (called squish), turning down the piston around the top edge to allow
Why is my chainsaw sputtering?
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 may evaporate, leaving behind a thicker, stickier substance. This sticky fuel can clog up the carburetor and cause the chainsaw engine to stall.
Can a chainsaw run without a muffler?
A chainsaw will run perfectly without a muffler but using it without the muffler is not recommended for two main reasons. Firstly, the muffler reduces the noise made by the saw, and secondly, it provides protection to the cylinder by keeping debris from getting in.
Can you fix a scored cylinder?
A home user will not be able to fix a scored cylinder with ball hones, nor will any hone they will have. If you can feel a gouge with your finger nail, the cylinder needs to be bored, platted, and polished to its final size before it can be polished.
Can scored Pistons be reused?
There is no problem with a scored piston. Use a not too fine file to clean it up, and use the rings as a tool to clean up the ring grooves.
Can you hone a chrome cylinder?
The only honing that should be done to a chrome cylinder bore is with scotchbrite. You can not bore or hone a chrome bore motor however I do use a fine ball hone to ruff up the glazing as novalves said.
What are chainsaw cylinders made of?
Harder than steel, Silicon Carbide (a very hard ceramic) is dissolved in nickel and then electroplated onto the cylinder bore. This is the process used by Formula One race car engine cylinders. They undergo extreme usage, so you know it’s a process that is good for small engines.
Why does my chainsaw dies when I give it throttle?
If the filter becomes clogged, not enough fuel will reach the engine for it to run properly. Because your chainsaw will idle, but dies when it is revved up to full power, it means that the filter is only partially clogged; it will allow enough fuel to the engine to run on idle, but not enough to sustain full throttle.
Why does my chainsaw bog out?
Clogged Air Filter Many chainsaw operators first notice a problem with chainsaws bogging down when they’re using the chainsaw under load, and this is usually the result of poor air circulation. This issue is caused by a clogged air filter on the chainsaw.
Why does my Stihl chainsaw bog down when I give it gas?
The Job of the Carburetor One controls the fuel mixture when the engine is idling, one controls it when the engine is operating at low speed and one is for high-speed fuel control. When the saw bogs down during cutting, it’s usually the high-speed screw you need to adjust.
How hot do chainsaw Mufflers get?
I’m quite sure a chainsaw muffler will get well over 200 degrees. Even a car muffler, several feet from the engine, gets hot enough to boil water (212 degrees).
What chainsaw do loggers use?
Stihl is the most popular chainsaw for professional loggers. It has a long-lasting chain, and you can also enjoy the exceptional cutting speeds available with this brand of chainsaw. Additionally, the chains are high-performance, low vibration, and quiet in their performance.
When did they stop using chainsaws in childbirth?
In light of this success, the chainsaw was eventually mechanized in the later 19th century to increase its ease of use by OB/GYNs on expectant mothers. However, shortly after this, the chainsaw was superseded by the Gigli twisted wire saw, which was most commonly used to cut bone.