How to Clean Mikuni Snowmobile Carburetor

Step 1 How to Clean Mikuni Snowmobile Carburetor

• Remove the side panel.
• Pull the 2 rubber straps off.
• Pull the panel up and out.
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Step 2




• Remove the belt cover by removing the pin.
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Step 3
• Use the secondary tool to expand the clutch. Turn clockwise.
• After this is done, roll the belt over the clutch to remove belt. Rolling the belt towards the back end of the machine.
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Step 4
• Remove the bolt on secondary clutch with a 1/2"(12.7 mm) open ended box wrench.
• Pull the bolt and washers out.
• Slide the secondary clutch off of the shaft.
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Step 5
• Using a 3/8"(9.525 mm) socket on the 3/8" ratchet, remove the air horn bolts, and pull the air horn out.
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Step 6
• Pull the rubber strap off of the air box.
• Remove the airbox by pulling the box up and out towards yourself.
• Caution: Be careful of pulling wires and cables.
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Step 7
• Turn the fuel off by turning the red fuel knob to the off position so that it is perpendicular to the hose.
• Note: straight piece on knob that is in line with hose means open. Perpendicular to the fuel hose means it is closed. (i.e. picture 2)
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Step 8
• Using a flat head screw driver, loosen the hose clamps on the carburetor boots so that it can be removed later.
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Step 9
• Using a 10 mm open ended box wrench, loosen the top and bottom nuts on the choke and throttle cable that are attached to the carburetor.
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Step 10
• Pull the carburetor off so that it can be rotated to the side.
• Pull the choke and throttle cables off by sliding cable through slots.
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Step 11
• Using a needle nose pliers, remove the hose clamp from the fuel hose that leads to the fuel rail.
• Pull the fuel line off of the fuel rail connector. Be careful to not break the hose and/or connector.
• Set a rag underneath the carb and fuel line to catch the fuel that pours out.
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Step 12
• Set the carb rack on paper towels in case fuel leaks out.
• On bottom side, take a 11/16" socket on a 3/8" ratchet to remove the bowls.
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Step 13
• Remove the main jet with a 1/4" deep socket on a 1/4" ratchet.
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Step 14
• Using a #2 Phillips head screw driver, remove the screw holding the bottom cover on.
• Be cautious of the gasket falling out of slot on the cover.
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Step 15
• Use the carburetor cleaner to spray the floats and pilot air jet.
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Step 16
• Remove the 4 screws using a #2 Phillips screw driver that connect the top plate to carbs.
• Caution: the gasket can be removed with top cover plate.
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Step 17
• Spray the carb cleaner on the top part of the carb. Ensure clean mechanical action of needle guide.
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Step 18
• Spray carb cleaner on the bowls.
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Author

with 2 other contributors

Zack Reuter

Member since: 10/03/17

101 Reputation

1 Guide authored

Badges: 2

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Team

Michigan Tech, Team S3-G2, Galliah Fall 2017 Member of Michigan Tech, Team S3-G2, Galliah Fall 2017

MTU-GALLIAH-F17S3G2

1 Member

1 Guide authored

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