Poulan chains saws at operate on a two cycle, or 2 strokeengine. The fuel of the engine is regulated by means of a carburetor. There are screws, or points, on a carburetor that can be adjusted to assist a motor operate. These factors regulate low rate fuel intake, high speed fuel intake and idle rate.
Common Tools
Chain saws could be adjusted using a screwdriver. Particular models of Poulans, however, utilize a sort of screw called a”spline screw.” This specialty screw can be adjusted by using a tool. They can be purchased from several retailers but are no longer readily available from the carburetor makers.
Carburetor Makers
Poulan utilizes two manufacturers for its carburetors: Zama and Walbro. The spline dent application may be needed by both for alteration. Some models might have a cap mechanism on the screws to prevent tampering. Before adjusting, this small plastic cap can cover a couple of screws and has to be eliminated. Substitute caps for post-adjustment could be arranged from the manufacturers, although removing it’s going to break the cap.
Why So Difficult?
One reason Poulan sometimes makes it hard to get to and adjust the carburetor points is that correcting a carburetor is among the most easy was to kill your machine. The high-speed adjustment screw is dangerous as it could pump fuel that is way too much in your chain saw, blowing it out and causing it to exceed the rpm. Manufacturers generally recommend professionals to do alterations. Mechanics like adjustment tools that are unusual and twist locks can ward off several owners that are less-experienced from attempting adjustments.
The Question of Pollution
Regulations enforced by nations and the Environmental Protection Agency have dissuaded some carburetor manufacturers from selling alteration tools. Besides the fact that self-adjustments can lead to damage to the engine, the pollution your chain saw sputters to the environment can be also increased by improper alterations. The screw caps or locks are set up to maintain the chain saw running at, or below emissions levels.