Saw Replacement Parts

The purpose of the Blade Pulley Tire is to keep the blade tracking correctly. Over time they will become brittle or stretched out. You then will have the problem of the blade coming off the pulleys or not tracking properly.
The tires simply stretch onto the pulleys. No tear down of any parts is needed.

Worn brushes frequently are the cause behind a motor running poorly.
Replacing brushes can fix a motor that’s operating intermittently.
New brushes can restore a motor’s electric braking.

Carbon brushes are one of the most commonly replaced power tool parts. This is because carbon brushes are wear items, meaning that through friction and use they will gradually wear away until they need replacing. Worn brushes are a common causes of intermittent motor function, reduced electric braking and reduced motor power. A worn-out brush will often be worn down near to the wire lead and can be cracked, pitted, or burned. When replacing carbon brushes, be sure to inspect your armature for burns, cracks, or other damage which can indicate larger motor problems.

Carbon motor brushes are one of the most commonly replaced power tool components. Because carbon brushes are wear items, meaning that through friction and use they will gradually wear away, they will eventually require replacement. Worn brushes are common causes of intermittent motor function, reduced electric braking, and reduced motor power. A worn out brush will often be worn down near the wire lead and may be cracked, pitted, or burned. When replacing carbon brushes, be sure to also inspect your armature for burns, cracks, or other damage which indicates a larger motor problem.

By pressing the bulb it will purge the air from the carburetor.
Then fuel will come up from the fuel tank through the fuel line then into the carburetor.
The excess fuel will be forced back into the tank through the fuel return line.

Over time the primer will lose its elasticity or crack and need to be replaced.