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Carburetor Zama

Part Number: 545070601
Poulan
Availability: 12 in stock
Price: $30.77
Quantity:
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*This part replaces obsolete part #: and 530035590.

Description:
A carburetor basically consists of an open pipe through which the air passes into the inlet manifold of the engine.
The pipe is in the form of a Venturi: it narrows in section and then widens again, causing the airflow to increase in speed in the narrowest part.
Below the Venturi is a butterfly valve called the throttle valve — a rotating disc that can be turned end-on to the airflow, so as to hardly restrict the flow at all, or can be rotated so that it (almost) completely blocks the flow of air.
This valve controls the flow of air through the carburetor throat and thus the quantity of air/fuel mixture the system will deliver, thereby regulating engine power and speed. The throttle is connected, usually through a cable or a mechanical linkage of rods and joints.

Fuel is introduced into the air stream through small holes at the narrowest part of the Venturi and at other places where pressure will be lowered when not running on full throttle.

Repair Stories
2 of 2 people found this instruction helpful
Tool Type:
Chain Saw
Parts Used:
Carburetor Zama - 545070601
Repair Difficulty:
Medium
Time Spent Repairing:
30-60 minutes
Tools Used:
Screwdriver, Socket set, Nutdriver
Chainsaw hard to start, running rough and bogging high rpm
Pulled off top shell, popped off air filter, Removed the screws from the old carburetor. Removed gas lines, (remember where they are placed) and throttle cable. Replaced and installed new carb.
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0 of 2 people found this instruction helpful
Tool Type:
Chain Saw
Parts Used:
Carburetor Zama - 545070601
Repair Difficulty:
Medium
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, Socket set, allen wrench
Chainsaw would start but wouldn't run at full throttle, then would stall.
Removed the top cover then the air filter. I disconnected the primer bulb line from the old carb. and reused it. That way I didn't need to change that also. Should've ordered a new gasket kit, but was able to salvage the carb gasket and reuse it. Saw ran great after I was done. Just have to remember to drain the gas when it gets stored for any length of time.
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Product Information
Manufacturer: Poulan, Poulan, Poulan
Category Number: 545070601
Classification: Part
Weight: 0.31 lbs.
Shipping: Ships Worldwide world wide shipping icon
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