Bosch

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It does not take much to take the cutting edge off a chain saw. A few accidental excursions into sand or dirty logs quickly dull the teeth. Check that your chain cutting teeth are sharp, blunt teeth will overload the motor and cause it to run hot. Chains can be sharpened several times before needing replacement and can be done DIY or taken to specialist sharpeners.

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If your chainsaw still starts and then stops working, check the air filter. Clean or replace the air filter if it is dirty or damaged. Another reason that your chainsaw starts and then stops working could be that the spark arrestor is dirty or clogged. If this is the case, clean it with a wire brush.
If your chainsaw is using too much bar oil, you may need to clean the bar and chain and rid it of built-up dirt and debris. You can do this by spraying a degreaser onto the bar and chain and letting it sit for a few minutes before wiping them clean with a rag.
This most commonly is a result of a dull chain and exerting to much pressure on the bar and chain trying to make the chain saw cut. This could also be either a lack of bar and chain oil ( tank empty, restricted oiler hole ) or an inferior type of oil that is being slung off the chain and not lubricating.
The chain saw should be oiled before each cut. Manual Oiling System: Lubricate the saw chain by pressing the bulb on the oil reservoir cap twice before making each cut. Hold the bulb down for 3-4 seconds on each press.
In all but very exceptional cases there is nothing wrong with the chainsaw and what appears to be an oil leak is simply oil that has sprayed from the chain as it rotates at high speed, draining from the saw body and guide bar.
Olive Oil. Olive oil is another option you could bank on for your chainsaw bar and lube. If you have a handy bottle of olive oil nearby, it`ll work just fine for your chainsaw bar and lube. It has good lubrication properties, and it is biodegradable.
Over time, the spark arrestor can become clogged with soot. If the spark arrestor is clogged, the chainsaw may run stall or run rough. To unclog the spark arrestor, remove it and clean it with a wire brush. You can also replace the spark arrestor.
BATTERY LIFE PER BATTERY CHARGE

For example, a STIHL MSA 120 C-B chainsaw with the recommended AK 20 battery lasts for up to 40 minutes or can achieve a battery life of up to 55 minutes when equipped with an AK 30 battery.

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 may evaporate, leaving behind a thicker, stickier substance. This sticky fuel can clog up the carburetor and cause the chainsaw engine to stall.

Discover Relevant Questions and Answers for Your Specific Issue

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Bad Clutch?? 455 rancher 20″ bar) I have owned it for two years and cut tons of fire wood with it. I recently replaced the oil pump. Yesterday I’m cutting oak like butter. Chain saw is cutting fine.. For no apparent reason it starts struggling to cut. I figure I hit something with the chain. I go to sharpen and notice that the clutch it’s red hot. I take it apart clean it up sharpen it up put it back together fire it up and start to cut. It starts to cut on angle and has no power?? runs fine revving it but will not cut?? What do you think?
ANSWER : Hi Before other checking change the spring of the clutch(2). best regards savumihai71

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My 290 isn’t oiling chain. I tried adjusting oil flow and still no oil?
ANSWER : You have to remove the bar and clean it out

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On a husqavarna 362 xp special 71cc chainsaw very little oil is coming out to the chain i have removed the chain and bar and cleaned and still very little oil is making it to the chain what should i do ??
ANSWER : Check to see if there is an oil-volume adjustment screw located near the lower part of the chain where it goes into the cover, but mounted in the main case. It might be underneath the case in about the same location. Turn it CCW somewhat, if found, and check for oiling by holding the bar tip running at speed near some cardboard. If properly oiled, it will throw off a thin line of oil after several moments. If there is no adjustment, then you will have to investigate the oil pump, lines, and filter/valve in the oil tank. Make sure to clean the small oil passages in the drive end of the bar. Hope this helps!

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What kind of oil in the oil tank and how much for the remington electric pole saw ?
ANSWER : Bar & chain oil is the best. You can use regular or synthetic. Some say you can use atf (auto transmission fluid) or sae30 oil. I use bar & chain oil.

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My husky 455 rancher is not oiling the chain properly. I have tried to clean all the oil ports on the bar and saw but it still is hardly pumping any oil to the chain. What could be the problem? How does the oiling system work?
ANSWER : The problem is very likely to be a clogged but more likely faulty internal oil pump (especially if your chainsaw is old).Hope it helps.

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What type of GAS and OIL need for the chain saw?
ANSWER : Hi gjoun…
You will need “Chain and Bar” oil to lube the chain and bar. Special oil made just to lubricate the chain and bar as the chain is running.
For the engine you can use the low grade of gasoline…and 2 cycle oil.
Fuel mix…50 to 1 = 1pint of 2 cycle oil to 6 gallons of gasoline.
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I have a husqvarna 137 chainsaw. The problem is with the bar oil. When the saw runs oil is flowing but where the rubber corner piece which allows the oil to flow out of appears to be just dripping the oil straight out. It looks like it should fill a small reservoir behind the metal plate and the oil then moves upwards where the chains drags the oil through the oil hole on the bar which is moving outwards as in the top chain on the bar. However the chain-brake area is just getting messy with oil splattering all over and the bar not actually getting oiled. I have fitted a new metal plate to see if the corner of the original was not sealing properly but that has not helped. The bar holes are clean. Any suggestions as I can’t see what it could be?
ANSWER : It’s the rubbers. I had the same problem with my 137 and 141. The rubbers shrink over time and the oil never makes it up the channel. The replacement part is one piece and less prone to leaking than the original 2 piece design.

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How to adjust bar oil flow as bar heating up too much even though chain is sharp
ANSWER : Not all Husqvarna models have an adjustable pump, if it is adjustable there will be a slot head screw either at the side of the sprocket, or just under neath the sprocket, there will be a small symbal of a drop of oil and a + and – sign.

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