
In the code or designation of a Mikuni carburetor like HSR 42 or TM 42, HSR or TM indicates the design of the carburetor and 42 indicates the bore (internal diameter) size ( in mm) on the engine end of the carburetor (your carburetor has two ends, one end is connected to the engine (engine end) and the other end is connected to the air filter (air filter end)).Įxamine the engine end of the carburetor and you may find the stamped marking like HSR 42 or similar to that which indicates the design and size of your carburetor. You can do this yourself if you have previous experience of handling carburetors or take the help of your mechanic. Our next question is how to identify your Mikuni carburetor in terms of its size and code.įor this, you need to take out your carb from your motorcycle and clean and dry it. If you have seen and handled a Mikuni carburetor earlier, you’ll be easily able to differentiate the original from the fake by just taking the carburetor in your hand one clear cue can be that the fake one will be much lighter (otherwise, how can they be priced low). Original or genuine Mikuni carburetors have a body of aluminum alloy die casting and you can see the markings ‘ MIKUNI CORP’ and ‘ MADE IN JAPAN’ very prominently on the body (the markings are cast into the body). How to know your Mikuni carb is fake or original? How to know which Mikuni carb you have?.


You only know that it is fitted with a Mikuni carburetor and you want to know its code and size and whether it’s a genuine Mikuni carburetor? II.
