Can u name where the high speed needle and the low high needle are?

See attached picture.

This engine doesn't have a low speed needle, but rather it has an air bleed low speed adjustment. The indicated screw opens or closes on a small hole drilled in the front of the carb, and this regulates the amount of air into the carb at low speed.

Hope this helps

Ken

Yes I can.....the high speed needle valve adjustment is the part that is sticking out closet to you...the low speed needle valve adjustment is on the other side just forward of the high speed the horizontally mounted screw with the spring under it

Looks like an OS fp and as indicated by RCKen and jetmech is indeed your low speed mixture control. You need to understand however that these 'bleeder type carbs work exactly opposite of a double needle type carb and this is important: To lean the low speed mixture this screw is opened turned counter clockwise. To richen the low speed mixture this screw is turned clockwise. Agine this is opposite of a double needle type carb.

That other vertical screw with the spring under it is the idle stop screw which is usually unscrewed just enought to allow the throttle barrel to completely close.

John

Hi RCKen
What program and what feature in that program do you use to add the red information to the photos? I am fairly computer literate but at my age I lack the drive and curiosity of a youngster. Thanks.

Villa,
That's all done with Photoshop.

Ken