How To Clean And Inspect The Carburetor On A Briggs And Stratton 10Hp Portable Generator
Portable generators are a blessing when natural disaster strikes and the electric goes off, but you need to keep them properly prepared for an emergency if you want them to work right. One of the problems that can arises is when you use old ethanol-based gasoline left in the tank to power your generator and it causes the carburetor to get clogged. Ethanol-based gasoline can create a sticky varnish-type substance as it breaks down in the fuel tank and lines; especially if the gas has been sitting in the generator since last winter. You need to inspect and clean the carburetor on the generator to make sure it is ready before this winter storm season starts. Here is how a regular homeowner can inspect and clean a Briggs and Stratton 10hp portable generator.
Turn Off Fuel
The fuel shutoff switch is located at the back of the generator and is just above the pull cord housing. Turn the switch so the red part of the handle is perpendicular to the fuel line to turn the fuel off.
Remove Filter & Housing
Also on the backside of the generator on the left-hand side is the air filter and housing. There are two screws that hold the cover to the filter housing. Remove the screws and take the cover off. Now, remove the filter. Behind the filter are two screws holding the back housing plate to the engine. Remove the screws and take off the back plate.
The carburetor is behind the back plate for the air filter housing unit. Unplug the fuel line from the top of the carburetor. There will be a pinch clamp on the fuel line. Use a pair of pliers to push the raised ends of the clamp together to release the pressure on the fuel line and pull it off the nipple on the carburetor. There will probably still be gas in the fuel line so make sure you put a small cup or something underneath the end of the fuel line to catch any fuel that drips out.
Remove the screws holding the carburetor to the engine and take it off the generator. You can now disconnect the hose line going to the back of the carburetor.
Inspect & Clean Carburetor
Take the carburetor to a well-lit area so you can see well. Take out the two screws that hold the bell-shaped bottom to the carburetor. Be careful while taking the bottom off, there is a little spring that will likely fall out. This spring goes on the bottom of the cylindrical piece of plastic in the carburetor. The piece of plastic holds the jet nozzle inside of it. Remove the plastic piece to expose the inside of the carburetor.
If the carburetor has residue on the walls and in the chambers, spray it liberally with carburetor cleaner and wipe with a clean rag.
You may also have to clean out the jet nozzle if it is plugged. Here you can use a thin wire to push through the hole in the middle of the jet nozzle. This will knock out any residue that has plugged the hole.
Put the carburetor back together in the opposite order you took it apart. Drain all the old fuel out of the tank and put in fresh gas,The generator should now start right up and run nicely. For more information, contact companies like Powell's Electric Service, Inc.