Small Engines Replacing a Carburetor

Published on March 20th, 2015 | by Jacks

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Replacing a Carburetor

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Carburetors can wear out for multiple reasons. If your engine is hesitating, stumbling, stalling, letting out black smoke, or has a hard time starting you may need to replace the carburetor. As intimidating as it may look, replacing a carburetor is an easy task that can be completed in just a few steps.

Below is a guideline to help you replace your carburetor. Be sure to check your owner’s manual for specific recommendations for the power equipment you are servicing.

bad carb and tank

new carb and gas tank

1. First remove the two screws holding the top of the air filter on.

remove the 2 screws

2. Remove the air filter and the four bolts holding the air filter base on.

remove the 4 bolts

3. Remove the two bolts holding the muffler on and remove the complete muffler.

remove muffler bolts

4. Remove the two screws holding the choke/throttle control on the gas tank. Move the assembly to the side.

remove throttle control screws

5. Now you have access to the bolt holding the throttle linkage to the carb and the two bolts holding the carb to the engine. Remove all three.

remove throttle linkage bolt

remove 1st carburetor bolt

remove 2nd carburetor bolt

6. Lastly remove the bolt on the bottom of the fuel tank support bracket then remove the carb and tank as an assembly.

remove gas tank support bolt

carburetor and tank removed

7. Before you discard the old tank and carb be sure to remove the carb breather tube with the rubber boot and the speed set assembly from the old tank bracket. They both need to be transferred to the new assembly.

remove screw holding breather tube

remove bolt holding speed set

8. Install the speed set assembly on the new tank which is held on by only one screw. Then install the new carb with the new gasket onto the new fuel tank along with the breather tube and elbow from the old carb.

reinstall speed set adjuster

install carburetor and gasket on new tank

9. Install the new carb and tank assembly onto the engine following the opposite order that you removed them.

install new gaskets

reinstall carburetor and throttle linkage

finished

Jack’s Safety Tips: Before servicing or repairing any power equipment, disconnect the spark plug and battery cables. Remember to wear appropriate safety glasses and gloves to protect against harmful chemicals and debris. View our Disclaimer.

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About the Author

Jack's Small Engines has been providing parts for outdoor power equipment online since 1997. We also run a service center for outdoor power equipment like riding mowers, snow blowers, generators, chainsaws, and just about anything else.



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