




MIKUNI offers this 40mm carburetor, known as the TM, for motocross, enduro, trial, mopeds, and other 4-stroke applications. This float-type carburetor is manufactured in Japan. The finish is truly flawless in every respect. The carburetor itself is meticulously engineered to deliver maximum performance. It’s very compact and fairly lightweight thanks to its aluminum construction, which will reduce wear on your intake pipe. Unlike carburetors from other brands on the market, this one can be completely disassembled. It’s also equipped with a rebound pump for even greater responsiveness when you open the throttle again. The advantage of choosing the MIKUNI carburetor is that it’s very high-performance—if not one of the best on the market—but in our opinion, it’s a bit complicated to tune properly. We therefore recommend this type of carburetor to experienced mechanics who will be able to get the most power out of it.
The settings for this MIKUNI TM 40mm 4-stroke carburetor are:
Main jet: MKC 165
Idle jet: MKU 17.5
Air jet: MKN 1.1
Needle: 9DJY01
Needle well 568-Y6
Ball 2
Needle 3.8
The dimensions of this carburetor are:
Outer diameter at the pipe end: 44 mm
Outer diameter at the air filter: 55 mm
Total height from float bowl cap to cover: 160 mm
An exploded view is available below. If you need a part, please feel free to contact us by email using the form on the website.
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