Difficulty
Moderate
Steps
17
Time Required
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Sections
1
- Carburetor
- 17 steps
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BackSterwins 460BSP500E-3 Mower
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What you need
Step 1
Required Tools
- Socket wrench, and 5/16 inch and 9/32 inch sockets
- Pliers
- Container for gasoline
- If you don’t have US Standard (inch) sockets, you can substitute a 8 mm metric for the 5/16" socket and a 7 mm metric for the 9/32".
Socket wrench, and 5/16 inch and 9/32 inch sockets
Pliers
Container for gasoline
If you don’t have US Standard (inch) sockets, you can substitute a 8 mm metric for the 5/16" socket and a 7 mm metric for the 9/32".
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Step 2
Disassemble the Pull Starter
- Removing the pull starter allows for much easier access to replace the carburetor.
- Unscrew the 3 mounting screws with a 5/16 inch wrench.
Removing the pull starter allows for much easier access to replace the carburetor.
Unscrew the 3 mounting screws with a 5/16 inch wrench.
Step 3
Remove the Pull Starter
- Lift up the pull starter once the screws have been removed.
Lift up the pull starter once the screws have been removed.
Step 4
Remove the Air Filter
- Take off the air filter cover.
- Remove the filter element to access the carburetor mounting screws.
Take off the air filter cover.
Remove the filter element to access the carburetor mounting screws.
Step 5
Remove the Air Filter Housing
- Remove the 2 screws marked “A” on the photo with a 5/16 inch socket.
Remove the 2 screws marked “A” on the photo with a 5/16 inch socket.
Step 6
Carburetor disassembly
- Remove the 2 screws marked “B” on the photo with the 9/32 inch socket wrench.
Remove the 2 screws marked “B” on the photo with the 9/32 inch socket wrench.
Step 7
Dismount the Air Filter Housing
- Detach the housing by disconnecting the breather hose.
- Remove the housing.
Detach the housing by disconnecting the breather hose.
Remove the housing.
Step 8
Remove the Fuel Tank and Carburetor
- Slide the tank up to unhook it.
- Pull the carburetor towards you.
- Tilt it downwards to separate the rod from the regulator marked “C” in the photo.
Slide the tank up to unhook it.
Pull the carburetor towards you.
Tilt it downwards to separate the rod from the regulator marked “C” in the photo.
Step 9
Detach the Fuel Tank
- Using the pliers, slide off the clamp to disengage the fuel hose.
Using the pliers, slide off the clamp to disengage the fuel hose.
Step 10
Empty the Fuel Tank
- Drain the gasoline into an appropriate container.
Drain the gasoline into an appropriate container.
Step 11
Replace the Carburetor
- Reconnect the hose from the tank to the carburetor.
- Reposition the spring clamp with the pliers.
Reconnect the hose from the tank to the carburetor.
Reposition the spring clamp with the pliers.
Step 12
Mount the Fuel Tank / Carburetor Assembly
- Holding the carburetor on its side, insert the throttle rod onto the throttle plate control.
- Rotate the assembly up 90° and position the carburetor on the intake pipe.
- Slide the fuel tank into its mounting notches.
Holding the carburetor on its side, insert the throttle rod onto the throttle plate control.
Rotate the assembly up 90° and position the carburetor on the intake pipe.
Slide the fuel tank into its mounting notches.
Step 13
Reassemble the Carburetor and Air Filter Housing
- Refit the breather hose.
- Reposition the air filter housing, taking care to align the screw holes with the support bracket.
Refit the breather hose.
Reposition the air filter housing, taking care to align the screw holes with the support bracket.
Step 14
Replace the Air Filter Housing Screws
- Tighten the 2 screws marked “A” on the photo with a 5/16 inch socket.
Tighten the 2 screws marked “A” on the photo with a 5/16 inch socket.
Step 15
Replace the Carburetor Screws
- Tighten the 2 screws marked “B” on the photo with a 9/32 inch socket.
Tighten the 2 screws marked “B” on the photo with a 9/32 inch socket.
Step 16
Install the Air Filter Element and Cover
- Refit the filter element and the cover, taking care to align the notches in the cover.
Refit the filter element and the cover, taking care to align the notches in the cover.
Step 17
Reinstall the Pull Starter
- Reposition the pull starter and secure it with the three screws using the 5/16 inch socket.
Reposition the pull starter and secure it with the three screws using the 5/16 inch socket.
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