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Overheating the chain/bar is usually caused by insufficient oil getting to the chain, but can be caused by the chain being too tight to begin with (you should be able to turn the chain by hand), grit in the chain groove, or a poorly sharpened chain. The saw has an oil volume adjustment screw on the lower part of the case near the chain return area. Turning it CCW should increase oil flow. Oil volume can be judged by running the saw tip at speed near some cardboard for a moment--it should throw off a thin line of oil. Chain sharpening condition can be judged by the sawdust residue coming from the cut--if a powder-like material, the teeth are not sharp or are improperly filed. You should not have to bear down excessively on the saw to make it cut quickly. Hope some of this helps!
Release the chain brake, then remove the bar and chain. Clean the area where the bar fits to on the engine. Start the engine to see if the oil oozes out of the small port. If nothing, then the oil pump, oil line, or tank filter will require service. If oil does come out, then clean the small oil passages in the drive end of the bar that run from the large holes out to the chain groove on each edge. Re-assemble the bar and chain--adjust the chain so that it just comes up to the lower bar edge, but you can still turn it by hand. Make sure the chain teeth cut toward you on the lower run of chain. Run the bar tip at speed near some cardboard--it should throw off a thin line of oil after several moments. Hope this helps!
Remove the bar and chain (release the chain brake first) and clean the side of the engine case where the bar fits to. Start the engine and observe whether oil oozes out of the side port. If ok, clean the small oil passages in the drive end of the bar that run out to the chain groove on each edge from the large holes. If no oil came out, then the oil pump, oil line, or oil tank filter may require service. Good luck!
Some saw manufactures design their oilers to only work with their bars. Are you running the mfg suggested or stock bar? Chain? Stihl Chain is designed to use 30% less oil because of oil groves cut into each drive link directed to the rivets. So if your running an aftermarket bar/chain, the oiling ports may not line up. Especially if it oils with no bar & chain
Remove the bar and chain again, and check the two small oil passages that run out to the chain groove on either edge of the bar for plugging--they commonly fill with sawdust and dirt. Clean the entire chain groove, then reinstall the bar and chain. Make sure the bar fits up to the engine case tightly and that the chain adjustment 'tang' drops into one of the large holes in the bar end. There is usually a rubber seal on the engine case side where the oil oozes out--make sure it is intact and in place. Hope this helps!
Remove the bar and chain. Clean the oil port in the engine side where the bar fits to. Start the engine and look for oil oozing out of the port. If ok, clean the bar drive-end oil passages that run from each large hole out to the chain groove on each side. Clean the entire chain groove, then reassemble the bar and chain. Tighten the chain until it pulls up to the lower bar edge, but not so tight that you can't turn the chain by hand. Recheck tension again after tightening the bar cover nut(s). Start the engine and run at speed for several moments with the bar tip near some cardboard--it should throw off a thin line of oil. Hope this helps!
I assume you are asking about the oil for the chain. Any good quality "Bar and Chain Oil" will do fine. Do not use motor oil you use in your car engine as it will not properly lube the chain and will result in quicker dulling and early demise of the chain.
You can get the "Bar and Chain Oil" at most hardware stores or Farm Supply stores.
Need to make sure your oiler is working. If not the chain will get hot and expand thus locking it up from friction. There is about a 1/4" hole in the rear of the bar where the oiler feeds oil to the chain. Sometimes this hole gets filled with sawdust. Clean it out and make sure you're getting oil to the chain. When you rev the engine and the chain turns you should see it throwing a small amount of oil off the tip of the bar towards the ground. If you don't see the oil then you need to get that fixed.
Sounds like you're not getting enough oil to the chain. Basically you've got an oil pump, pickup and filter involved in getting oil from the resovior to the chain/bar. If you cleaned the obvious area and the chain is not coated with oil, you may have a clog further up (inside) the oil delivery mechanisms. Also, drain the oil from the tank, and see if you can "blow" air through there. With the saw running & pointed down, you should be able to see oil on the ground being slung off the chain, if not, you are not getting enough oil to the chain.
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