New guy that knows nothing.

[Onedawg]

I’ll get a pic of the whole carb and post it. I’m not sure what the carb model is, I’m sure someone will be able to identify it.

The first pic is not a float bowl drain, it’s not under the float bowl. It’s directly under the main body of the carb and the needle screws into the main jet. I want to say it’s a mixture control, but if that’s the case, what’s the adjustment screw in the second pic?

The second pic is not the idle adjustment screw, because I’ve identified the idle adjustment.

 

[Onedawg]

Here’s some more pics…

 

[DieselTech]

Here’s some more pics…View attachment 222658View attachment 222664

I can't think of what model carb that is.

But the T-handle adjustment screw is a adjustable main jet.

The other screw on the side is a air/fuel mixture adjustment screw.

Lmao the Whizzer men will correct me if wrong.

 

[Onedawg]

Thanks for the reply. Your assessment is the same as mine. So my next question is, why would you want a variable main jet? And any suggestions for an initial setting?

 

[mason_man]

Tillotson ML5B carburetor
Wing nut 3/4 turn out.
Low speed 2 to 1 1/2 turn

 

[DieselTech]

Thanks for the reply. Your assessment is the same as mine. So my next question is, why would you want a variable main jet? And any suggestions for an initial setting?

Temperature & elevation changes.

 

[DieselTech]

Thanks for the reply. Your assessment is the same as mine. So my next question is, why would you want a variable main jet? And any suggestions for an initial setting?

Tillotson ML5B carburetor
Wing nut 3/4 turn out.
Low speed 2 to 1 1/2 turn

Just take this guys advice. He is the man when it comes to whizzers.

Plus we got @Wrench & @Risk Man that are fluent in the Whizzers.

 

[Onedawg]

Tillotson ML5B carburetor
Wing nut 3/4 turn out.
Low speed 2 to 1 1/2 turn

Thank you!

 

[Chainlube]

Tillotson ML5B carburetor
Wing nut 3/4 turn out.
Low speed 2 to 1 1/2 turn

Of course that is a base setting, you will have to adjust up or down for best performance.

 

[mason_man]

Of course that is a base setting, you will have to adjust up or down for best performance.

Best settings will be after motor is warmed up, and this setting will be very close. Motor condition will also dictate.