I'VE OWNED A STIHL 08S FOR MANY YEARS, REPLACED SEVERAL PARTS, HAVE PARTS LIST, SERVICE MANUAL, ETC. IF YOU ARE RUNNING THE 7 TOOTH 0.404"(COUNT THE TEETH) THERE ARE 2 BAR TYPES (1) DUROMATIC 3002-000-9223 (46RS72E) HARD NOSE 68 DRIVE LINKS. AROUND $100.00 BUCKS. (2) ROLLOMATIC E SUPER 3002-000-9723 (46RS68E) REPLACEABLE SPROKET NOSE. REPLACEMENT NO.(3003-650-2538). HOPE THIS HELPS!
The Stihl chainsaw model 08S has 3.75 horsepower or 2.8 kW. The displacement is 60.3 cc, the length of the bar is 24.8 inches, and the weight is 15.9 pounds.
An 18" or 20" bar would be ideal on a Stihl 041 http://store.chainsawr.com/
A STIHL 045 av is 75cc and the max recommended bar size for it is 32". However... If you have a 045 av Super then it would be 87cc and the max recommended bar length would be 36". So it depends if you have a SUPER or not. It is easy to tell as it will say SUPER on the top tag right below 045 av.
Can I put a 18inch bar on a stihl
remove bar, chain there should be a small cover over the drive sprocket, held on woth a screw, remove cover, then there should be a screw or bolt holding the sprocket on, remove that, pull old sprocket off, replace it in reverse.
The Stihl 032 was introduced in 1978 and the maxrecamended bar length is 20". But I know from experiencethey can easilyhandle up to 24".
20 in. Bar
The Stihl 023 is 40.1cc - 2.45cu.in. -weight 10.1 lbs. w/o bar and chain
Some Stihl chain saws have an adjuster underneeth the saw to turn up the oiler .
20 inch bar and chain
You can use several length bars on this saw. It looks like it came from the factory with a 20" bar.
For a 20" Bar 325 Pitch .063 Gauge Chain 81 Links