How To Install A Fuel Line Repair Kit

How practice you lot rebuild or overhaul a small engine carburetor?

Rebuilding the carburetor may be required if basic adjustments don't fix your small engine problems or improve performance on your lawn mower or outdoor power equipment. Follow the steps below for overhauling small engine carburetors.

WARNING: E'er read the engine and equipment manual(southward) earlier starting, operating, or servicing your engine or equipment to avoid personal injury or property harm. Fuel and its vapors are extremely combustible and explosive. Always handle fuel with farthermost care.

See an authorized dealer or contact Briggs & Stratton if you are unsure of whatsoever procedure or have additional questions. Notice all Engine Safety Warnings

Footstep i: Removing the Carburetor
Step 2: Disassembling A Bladder-Type Carburetor
Step iii: Inspecting the Carburetor
Pace iv: Inspecting Air-Fuel Mixture Screws
Footstep 5: Reassembling the Small Engine Carburetor
Step 6: Attaching The Carburetor & Air Cleaner Associates

Rebuild Small Engine Carburetor by Briggs and Stratton

Step 1: Removing the Carburetor

Disconnect the spark plug atomic number 82 and secure it away from the spark plug. And then, remove the air cleaner assembly.

Rebuild Small Engine Carburetor by Briggs and Stratton

Turn off the fuel valve at the base of the fuel tank. If your engine does non contain a fuel valve, utilize a fuel line clamp to prevent fuel from draining out of the tank while the carburetor is asunder from the engine.

Rebuild Small Engine Carburetor by Briggs and Stratton

Some carburetors contain an electrical device at the base of operations of the fuel bowl to control afterfire. Disconnect the device, known equally an anti-afterfire solenoid, past removing the wire connector from the solenoid'south receptacle.

Rebuild Small Engine Carburetor by Briggs and Stratton

With the carburetor still connected to the governor, unfasten the carburetor mounting bolts. If a connecting piping joins the carburetor to the engine block, first remove the pipe mounting bolts. So, disconnect the carburetor from the pipe by removing the nuts and sliding the carburetor off the studs. Sketch the governor jump positions before disconnecting them to simplify reattachment.

Rebuild Small Engine Carburetor by Briggs and Stratton

And then, disconnect the governor springs and remove the carburetor, taking special care not to bend or stretch links, springs or control levers.

Stride 2: Disassembling A Float-Type Carburetor

Your carburetor contains a small-scale amount of fuel. Set up a clean bowl to catch dripping fuel and store modest parts. During disassembly, inspect the bowl for dirt and debris to determine the condition of your carburetor.

Remove the fuel basin from the carburetor body. The fuel bowl may be attached with either a bolt or the high-speed mixture screw.

Rebuild Small Engine Carburetor by Briggs and Stratton

Button the swivel pin out of the carburetor body with a small pin or pin punch. Take care to tap just the pin to avoid damaging the carburetor body.

Rebuild Small Engine Carburetor by Briggs and Stratton

Remove the float assembly, inlet needle valve and fuel bowl gasket.

Rebuild Small Engine Carburetor by Briggs and Stratton

If your carburetor contains an idle mixture screw, remove it along with the spring.

Rebuild Small Engine Carburetor by Briggs and Stratton

Rotate the throttle plate to the closed position, remove the throttle plate screws and the throttle plate.

Rebuild Small Engine Carburetor

Remove the throttle plate shaft and cream seal.

Rebuild Small Engine Carburetor

Then, remove the asphyxiate plate and choke shaft and felt or foam washer in the same manner.
Use your carburetor repair kit to place replaceable welch plugs. These seals cover openings in the carburetor left over from machining. Insert a sharpened five/32" pin dial at the edge of each plug to exist removed and tap cleanly to free the plug.

Rebuild Small Engine Carburetor

Unscrew the main jet from the side of the carburetor pedestal (if equipped). Then, unscrew the emulsion tube; it may be screwed in tight. A carburetor screwdriver is the best tool for the job. It's designed to fit the slot in the head or the emulsion tube so that you won't damage the threads inside the pedestal of the tube itself as yous loosen information technology.

Rebuild Small Engine Carburetor by Briggs and Stratton

Remove the emulsion tube.

Rebuild Small Engine Carburetor by Briggs and Stratton

Step iii: Inspecting the Carburetor

Soak metal and plastic carburetor parts in all-purpose parts cleaner for no more than than xv minutes to remove dust. Or, while wearing safety glasses, spray the parts with carburetor cleaner. Then, wipe away solvent and other balance thoroughly using a clean textile. Never use wire or tools considering they tin can impairment or further obstruct plugged openings.

Rebuild Small Engine Carburetor by Briggs and Stratton

Inspect all components and employ additional carburetor cleaner to loosen stubborn grit and to clear obstructions.
Replace any parts that are damaged or permanently clogged.

Step 4: Inspecting Air-Fuel Mixture Screws

Brass mixture screws command the air-fuel mixture at high speed and at idle. Over tightening can damage the tip of the screw and then that proper adjustment is no longer possible.

Rebuild Small Engine Carburetor by Briggs and Stratton

Remove any non-metallic parts and soak mixture screws in carburetor cleaner for xv minutes.
Then, inspect them carefully for wearable. Replace a mixture screw if the tip is aptitude or contains a ridge.

Step 5: Reassembling the Small Engine Carburetor

Install new welch plugs from your repair kit using a pin punch slightly smaller than the outside diameter of the plug. Tap on the punch with a hammer until the plug is flat (potent blows with the hammer will cause the plug to cave in). Then, seal the outside edge of the plug with enamel nail shine.

Rebuild Small Engine Carburetor by Briggs and Stratton

Assemble the choke by inserting the return spring inside the cream seal and sliding the jump and seal assembly onto the choke shaft. Plastic choke plates have a terminate catch at one cease of the leap; metal plates have a notch to agree the hook at one end of the spring.
Insert the choke shaft into the carburetor body and engage the return spring. If the choke lever uses a detent spring to command the asphyxiate plate position, guide the jump into the notched slot on the choke lever. Place the choke plate on the shaft with the unmarried notch on the edge toward the fuel inlet. Lift the asphyxiate shaft and lever upwardly slightly and turn counterclockwise until the terminate on the lever clears the jump anchor. Push the shaft downward.
Insert the choke plate into the choke shaft or attach it with screws and so that the dimples confront the fuel inlet side of the carburetor. The dimples help concord and align the choke shaft and plate.
Install the throttle shaft seal with the sealing lip down in the carburetor body until the top of the seal is affluent with the top of the carburetor. Turn the shaft until the flat side is facing out. Adhere the throttle plate to the shaft with the screws so that the numbers on the throttle plate face up the idle mixture screw and the dimples face in.
Install the inlet needle seat with the groove down, using a bushing commuter. And then, install the inlet needle on the float and install the assembly in the carburetor body.
Insert the swivel pin and heart pin. And so, install the safety gasket on the carburetor and attach the fuel basin, fiber washer and bowl nut.

Stride 6: Attaching The Carburetor & Air Cleaner Assembly

Position the carburetor so the beveled edge fits into the fuel intake pipage and attach the carburetor with nuts or bolts, every bit required, leaving these fasteners loose for concluding tightening with a torque wrench. Consult your Briggs & Stratton Authorized Dealer for proper tightening torque.

Rebuild Small Engine Carburetor by Briggs and Stratton