sprocket worn out, chain brake on....does chain turn free by hand?
What is the part number of the sprocket of stihl 025 ?
The fuel mixture for a Stihl chain saw is gas and oil.
you have to prevent the crankshaft from turning when you loosen the retaining nut. the nut is probably left-hand threads(loosen by turning clockwise). remove the spark plug, turn the sprocket (and crankshaft) to the left until the piston is at the bottom of the cylinder, insert enough nylon pull starter rope into the spark plug hole to fill the cylinder, turn the sprocket to the right until the rope is compacted enough to prevent the piston from moving, put a wrench on the nut and tap with enough force to break it loose. replace the sprocket and use the same process in reverse to tighten the nut, don't go nuts tightening, it will tighten itself as you use the saw. a dealer might give you the correct torque specs.
The Stihl 064 is a 84.9cc chainsaw.
For factory 16" bar; 3/8" pitch, low profile, .050 drive link width, and 55 drive links.
The Stihl 023 is 40.1cc - 2.45cu.in. -weight 10.1 lbs. w/o bar and chain
The Stihl company, Headquartered in Germany makes all Stihl tools,including chainsaws.
At your local Stihl dealer
Stihl 029 super 56.5cc 3.8hp
Can I put a 18inch bar on a stihl
20 inch bar and chain