Why Stihl MS 661 C-M Chainsaw is losing chain oil?
If your Stihl chainsaw is losing chain oil, the oil pump may be damaged or worn, requiring a replacement. Another cause could be a faulty gasket between the two halves of the crankcase, or a crack in the crankcase itself. In this case, replace the gasket and inspect the crankcase halves, replacing them if necessary.
What to do if my Stihl MS 661 C-M engine does not start?
If your Stihl Chainsaw engine doesn't start, here are a few things to check: * Make sure you have sufficient fuel in the tank; if not, mix fuel and refuel. * If the engine is flooded, clear the combustion chamber. * If the carburetor is too hot, allow the chainsaw to cool down. * If the carburetor is iced up, allow the saw to warm up to +10°C.
What to do if Stihl Chainsaw engine is flooded?
If your Stihl Chainsaw's engine doesn't start and you suspect it's flooded, clear the combustion chamber.
What to do if Stihl Chainsaw engine does not deliver full power or runs erratically?
If your Stihl chainsaw engine isn't delivering full power or is running erratically, consider these potential causes: worn or broken piston rings, which would need replacing; a carbonized muffler or spark arresting screen, suggesting cleaning or replacement; a dirty air filter, which should be cleaned or replaced; a kinked or torn fuel hose, which requires replacement or repositioning; or a decompression valve that isn't closed, which needs checking and possible replacement.
Why Stihl MS 661 C-M Chainsaw starter rope broken?
If the starter rope on your Stihl chainsaw is broken, it may be due to pulling the rope too vigorously or at an angle. It can also break due to normal wear. In either case, install a new starter rope.
Why Stihl MS 661 C-M Chainsaw chain sprocket wears rapidly?
If the chain sprocket on your Stihl chainsaw is wearing rapidly, it may be due to the chain not being properly tensioned; ensure you tension the chain as specified. Another cause could be the wrong chain pitch, so fit a chain of the correct pitch. Insufficient chain lubrication can also lead to rapid wear, so check the chain lubrication.
What to do if Stihl Chainsaw saw chain does not stop immediately when brake is activated?
If the saw chain on your Stihl chainsaw doesn't stop immediately when the brake is activated, the chain brake spring may be stretched or broken, requiring a new brake spring. Also, the brake band might be stretched, worn, or broken, so fit a new brake band. A worn clutch drum can also cause this issue, so install a new clutch drum.
Why does my Stihl MS 661 C-M idle erratically?
If your Stihl Chainsaw's engine idles erratically, the carburetor might be iced up. Allow the engine to gradually warm up to about 50 °F (10 °C).
What to do if Stihl MS 661 C-M engine stops while idling?
If your Stihl Chainsaw engine stops while idling, it may be because the carburetor is iced up. Allow the saw to warm up to +10°C.
Why does my Stihl MS 661 C-M Chainsaw smoke or smell burnt when sawing?
If your Stihl Chainsaw smokes or smells burnt during sawing, the chain might be dull or improperly sharpened. Sharpen the chain properly.
General| Idle speed | - RPM |
|---|---|
| Motor type | 2-stroke motor |
| Chain pitch | 3/8 \ |
| Blade length | 800 mm |
| Product color | Black, Grey, Orange |
| Automatic oiling | Yes |
| Engine displacement | 91.1 cm³ |
| Power source | Gasoline |
| Sound power level | 118 dB |
| Vibration emission | 6.9 m/s² |
| Sound pressure level | 105 dB |
Weight and Dimensions| Weight | 7400 g |
|---|
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