How To Clean Mikuni Snowmobile Carburetor Repair Guide

Difficulty

Moderate

Steps

Time Required

                          1 hour

Sections

How to Clean Mikuni Snowmobile Carburetor
18 steps

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Introduction

What you need

Step 1

              How to Clean Mikuni Snowmobile Carburetor

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

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.

Remove the belt cover by removing the pin.

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.

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.

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.

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.

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.

Using a 3/8"(9.525 mm) socket on the 3/8" ratchet, remove the air horn bolts, and pull the air horn out.

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.

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.

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)

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)

Step 8

Using a flat head screw driver, loosen the hose clamps on the carburetor boots so that it can be removed later.

Using a flat head screw driver, loosen the hose clamps on the carburetor boots so that it can be removed later.

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.

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.

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.

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.

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.

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.

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.

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.

Step 13

Remove the main jet with a 1/4" deep socket on a 1/4" ratchet.

Remove the main jet with a 1/4" deep socket on a 1/4" ratchet.

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.

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.

Step 15

Use the carburetor cleaner to spray the floats and pilot air jet.

Use the carburetor cleaner to spray the floats and pilot air jet.

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.

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.

Step 17

Spray the carb cleaner on the top part of the carb. Ensure clean mechanical action of needle guide.

Spray the carb cleaner on the top part of the carb. Ensure clean mechanical action of needle guide.

Step 18

Spray carb cleaner on the bowls.

Spray carb cleaner on the bowls.

To reassemble your device, follow these instructions in reverse order.

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Author

                                      with 2 other contributors

                    Zack Reuter

Member since: 10/03/2017

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Team

                       Michigan Tech, Team S3-G2, Galliah Fall 2017                        

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Introduction#

What you need#

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Introduction

What you need

Team