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308054043 Carburetor

Part Number: 308054043
Availability: 25+ in stock
Price: $54.12
Ships within 1 business day

*This part replaces obsolete part #: 308054034 and 308054028.

This is a genuine OEM replacement part, it is sold individually.
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
1 of 1 people found this instruction helpful
Tool Type:
Parts Used:
Carburetor - 308054043
Repair Difficulty:
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, Wrench Set, torx wrench
carb gaskets bad
Remove air cleaner cover. Then loosen the two screws behind it. Look to see how all the parts are placed before removing the screws. Remove the fuel lines from the old carburetor and connect them to the new carburetor as the were on the old one. Replace parts in reverse order. You may want to replace the carburetor gasket.
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Discussion for Carburetor - ( 308054043 )
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Question: Carb Ajuster


were can i buy a juster for this carb
Reply: Carb Ajuster


Check the type of heads the adjusting screws have and then do a search for that tool on Ebay. Many Ebay sellers have that tool; at reduced pricing too!
Reply: Carb Ajuster


Hello Shoutout,

EPA Carburetors

Your machine has an "EPA" carburetor. Starting in 1997 The EPA placed requirements on how clean small engines are required to burn. As part of this restriction the carburetors are set at the factory. The carb then either has the adjustment ports capped or they use special adjustment screws so that the carb can only be adjusted by a tech trained in compliance with the EPA directives. The manufacture offers the special carb adjustment tools their authorized repair shops but not to the general public. The manufacture is liable to ensure that the equipment they sell complies with the EPA directive and therefore will typically not offer the adjustment tools for sale to the general public. You can learn more about the EPA emissions requirements for small engines at the following link...

Before you adjust the carburetor you should determine why it needs adjustment first. A carb should only need adjustment when it is new and needs to be adjusted for altitude or after a carburetor rebuild has been performed. If a piece of equipment has been working fine and then starts acting up there will be more repair issues than a simple carb adjustment. The carburetor itself will not simply go out of adjustment. You will want to look at things like a tune up, a clogged carburetor, a plugged exhaust system, ignition problems, etc. Adjusting a carburetor requires some knowledge and experience with small engines. You can easily overheat and seize the engine if you are not familiar with the proper procedures. It is also a good idea to use an engine tachometer to be sure that you make the correct adjustments.

I hope this helps with the repair of your small engine!

Question: Carb. Rebuild Kit


How can I buy a rebuild kit instead of buying a whole new carburetor?
Reply: Carb. Rebuild Kit


Hello royalhayn,

Unfortunately the manufacture does not supply a rebuild kit for this carburetor. We have prepared an article and video on How to Clean A 2 Cycle Engine Carburetor. Hopefully this will get you going again.

Good luck,
Reply: Carb. Rebuild Kit


There are gasket and diaphragm kits available to fit the Ryobi, Homelite, Ruixing carburetors. Just search "Ruixing carburetor" on Ebay. There are also FULL repair kits that will fix these little 2 stroke diaphragm carbs on there too.
Product Information
Manufacturer: Ryobi, Ryobi, Homelite
Category Number: 308054043
Classification: Part
Weight: 0.23 lbs.
Shipping: Ships Worldwide world wide shipping icon
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