How to Change the Oil Hose on a Stihl Chainsaw

Stihl gas-powered chainsaws run with either a two- or four-stroke engine. Two-stroke engines use a mixture of gas and oil all in one tank to power the chainsaw. Four-stroke engines have a separate oil and gas tank. To supply oil to the pistons of the engine, an oil supply line is used on the four-stroke model. If the oil hose is clogged or broken, it will need to be replaced. Luckily, the design of the Stihl chainsaw makes this a one-hour or less repair.

Drain pan
Pliers
Screwdriver or nut driver
Replacement oil hose

Instructions

- 1
  Locate the oil hose at the bottom or side of the oil crank case.
- 2
  Drain the oil tank by removing the oil tank plug and draining the oil into a drain pan. This prevents spills when removing the hose.
- 3
  Squeeze down on the clamp that holds the oil hose in place with a pair of pliers. Unscrew the clamp with a screwdriver or nut driver if it is a screw clamp. Repeat on the other end of the hose then remove it.
- 4
  Insert a new oil hose into the clamps. Tighten the clamps down with the pliers, screwdriver or nut driver.
- 5
  Replace the oil drain plug then refill the oil tank to complete the repair.

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