XS1100 #2 Carb Main Nozzle

[Koestum]

My #2 carb main nozzle is has less feeder holes than the others. Is this correct for the #2 carb or is it the wrong nozzle?

This has 2 feeders & 3 feeders... all the others have 4 & 4.

My first Yamaha, all my Hondas we're consistent.

Thanks

 

[Sderbyshire]

Idk but surely they should all be the same ?

 

[cxman]

on the ones i have done they are the same yamaha calls for them to be the same

they only list one part number (6) for each carb here on the diagram

Yamaha Motorcycle 1979 OEM Parts Diagram for Carburetor | Partzilla.com

Buy OEM Parts for Yamaha Motorcycle 1979 Carburetor Diagram

www.partzilla.com

 

[teazer]

Are there any numbers stamped into the nozzles? Typically Mikuni allocate a number from their series. That way it is usually easy to see if they are correct. But the model specific parts are not always available from Mikuni or the OEM.

In this case, if all other dimensions are exactly the same, it may be possible to drill additional air bleed holes with jet drills.

 

[Koestum]

Thanks, ya I saw the single part # on the diagrams too.

Since posting I have found that on some bikes the factory used fewer feeder holes on the #2 & #3 carbs to try to keep center combustion chamber temps more consistent with the cooler outer combustion chambers.