The Stihl MS 170 is a compact, lightweight chain saw for home use built to replicate the functionality of chain saws used by professionals. The MS 170 is designed for cutting and trimming small trees, firewood and can help with tasks like clearing debris after a heavy storm. The Stihl MS 170 offers features like a trademarked Ematic bar, which helps reduce oil usage by up to 50 percent. As of 2011, the MS 170 has a distributor suggested retail price of $179.95.
Power and Weight
The Stihl MS 170 chain saw features a single-cylinder, two-stroke 1.3 kilowatt (kW) engine with a 30.1 cc displacement, bore and stroke of 1.46 inches by 1.10 inches, and an idle speed of 2,800 rpm. The MS 170 has a dry weight of 8.6 lbs.
Chain, Oil and Fuel Capacity
The Stihl MS 170 features a 3/8-inch PMMC3 low kickback, oilomatic chain. The chain saw has a chain oil capacity of 4.9 oz. and a total fuel capacity of 8.5 oz.
Lubrication and Ignition
The Stihl MS 170 chain saw features fully automatic, speed-controlled rotary piston oil pump chain lubrication. The chain saw has an all-position diaphragm carburetor with an integral fuel pump and a breakerless electronic magneto ignition system.
The Stihl MS 170 chain saw offers standard features such as an automatic bar and chain oiler, anti-vibration system, easy-access air filter, patented Quickstop chain brake system that stops the chain in fractions of a second, large starting handle, master control lever that controls the choke, starting throttle lock and on-off switch, rear hand guards to lower the risk of injury and a translucent fuel tank that allows users to check the fuel level without obstruction.
No Power at Full Throttle on My Stihl MS 170
When your Stihl MS 170 chainsaw drops its power under full load, it generally means there is an improper mixture of fuel...