630 carb. guages

P I Pete

Member
Friend of mine is restoring a 630, are the 2 idle screws on the bottom of the carb to adjust air or fuel? Next if I remember right
previously on here there was talk that U S made guages were available, but I don't remember where. Can some one help me with these
issues? Thanks

Pete
 
Those two screws adjust a mixture of air and fuel...not one or the other. the drilled gallery splits back about 5" and one branch goes to fuel and the other to air bleed. It is already mixed by time it reaches the needles and they control the volume to each cylinder.
 

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Back
Top