What type of Mikuni carb do I have?
It’s simple to identify a Mikuni Carburetor by looking at the top view of the float chamber cover, the cover gasket of the float chamber or the jet chamber cover gasket. The word Mikuni ought to be printed somewhere on the carburetor. It could be in small or large letters.
Where are the Jets in a Mikuni carb?
The pilot circuit has two adjustable parts, fig 2. The pilot air screw and pilot jet. The air screw can be located either near the back side of the carburetor or near the front of the carburetor. If the screw is located near the back, it regulates how much air enters the circuit.
How do Mikuni carbs work?
The starting system works by opening a passage that allow more fuel to pass through a different set of jets making the mixture richer. The vent allows air to escape as the fuel come in. At the bottom of the carburetor is the float bowl or chamber and the accelerator pump.
How do I identify my Mikuni carb snowmobile?
Re: Identifying Mikuni carb size? Measure the inside diameter of the carb on the engine side. That will give you the size. Most of the internals will be marked as to what size they are and a lot of them can be ordered separately as needed.
How can you tell if a Mikuni carb is real?
The fake carburetor has the “Minkui” imprinted on the top and side of the carburetor. On a genuine carburetor you will find the “Mikuni” logo. Also you will notice that the fake carburetor doesn’t have the “NOT FOR AIRCRAFT USE” decal and the anchor plates.
Are all Mikuni jets the same?
There are many different kinds of Mikuni main and idle jets, and there seems to be little rhyme or reason as to which carb takes what jets. It seems like VMs above 18mm take the 4/042 (large hex) main jets, but the smaller VMs take all sorts of different main jets, and each size comes in various models.
How does the choke work on a Mikuni carb?
The way they work is the choke plunger covers a passage in the carb body that when the plunger is raised it allows fuel to flow through the passage. When the choke is off the plunger seals up that passage. You must make sure you completely seal that passage in the body so fuel can not flow.
Which way is choke on Mikuni carb?
The pivot point on the lever can be set up a couple different ways, but the plunger that the lever activates is the only thing that matters. Just remember that if the plunger is UP, the choke is ON. If the plunger is DOWN, the choke is OFF.