When is the needle in the leanest position?
The needle is in the leanest position when the clip is on the top, and richest on the bottom. The needle calibrates the fuel to the change in throttle valve (slide) opening. The further down the needle is, the later the main jet comes on and the leaner the mixture at that point.
Where can I get Mikuni tuning and jetting parts?
They also have parts for PWCs, ATVs and snowmobiles. They’re one of the largest Mikuni dealers anywhere and their prices are very reasonable. They also have a great selection of parts, fast shipping and superb customer service.
What kind of work does Mikuni do on motorcycles?
Mikuni engineers work with motorcycle manufacturers to adapt their carbs to a particular design to meet factory specifications. For instance, certain models may need an idle screw on the left side rather than the right to make it more accessible – or maybe the choke lever needs to be operated from the right rather than the left.
What should venturi size be on Mikuni bike?
If you put on too big or too small a carb, your bike is going to run like kaka – if at all. Let’s say your bike is basically stock. You pull off the old carb and determine that the venturi size is 28mm on that carburetor (this can be done by measuring with a caliper).
Is the Mikuni HSR fitted with tuning parts?
Your Mikuni HSR is fitted with the tuning parts we found to work with the great majority of engine perfor- mance modifications. However, the large number of differing after market exhaust and air cleaner systems makes it virtually impossible to accommodate all possible combina- tions with one carburetor set-up.
They also have parts for PWCs, ATVs and snowmobiles. They’re one of the largest Mikuni dealers anywhere and their prices are very reasonable. They also have a great selection of parts, fast shipping and superb customer service.
Can a Mikuni BN 34mm carburetor be rebuilt?
Mikuni Carburetor Rebuild Kits for both Original Equipment and aftermarket Mikuni BN 34mm, BN38mm and BN44 Personal Watercraft Carburetors. These Kit replaces vital components in the BN Carburetor including the fuel pump diaphragm, Gaskets, Seals, and Float Bowl Screws to return the popular BN Watercraft Carburetor to like-new operation.
Can a Mikuni mk-512 carburetor rebuild be used?
This Mikuni MK-512 Carburetor Rebuild Kit is designed to replace multiple internal parts including the Float Valve, Internal Gaskets, Needle Clip, and external items such as Screws and Springs. Please note that due to jet variations for different applications, this Kit does not include any Main Jets or Pilot Jets.