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Stihl Chainsaw Carburetor Tuning High and Low Screw

Fine Tuning Screw L Low Speed Fuel Adjustment Screw The screw with the {L} marking is the Low Speed screw. Set the low speed fuel adjustment. Slowly turn in the screw until the engine surges or starves for fuel. Make a mental note of the position of the screwdriver slot. Now slowly turn the adjustment […]

Stihl Chainsaw Troubleshooting Guide

4. If saw runs but, not on gas in tank, check gas tank for old gas. Empty old gas and, look for syrup in the bottom of the tank, if present clean thoroughly. Use carburetor cleaner, gas and a brush that can reach in and not melt. Try to start with fresh gas mix.

Stihl Chainsaw Carburetor Troubleshooting Chart

Hard Starting, Will not idle, Rich Idle

Stihl Chainsaw Carburetor Adjustment

Tunning up a Stihl Chainsaw Carb is 123 Easy. Here’s How. Simple concise tune up adjustment for a Stihl, Poulan, Homelite or Husqvarna chainsaw carburetor

Lincoln LN-25 Care, Maintenance and Troubleshooting

IDLE ROLL PRESSURE SETTING
The idle roll pressure is set at the factory backed out two turns from full pressure. This is an approximate setting. For small wire sizes and aluminum wire, the optimum idle roll pressure varies with type of wire, surface condition, lubrication and hardness. The optimum idle roll setting can be determined as follows:
1. Press end of gun against a solid object that is electrically isolated from the welder output. Press the gun trigger for several seconds.
2. If the wire