I have a B&S 12hp motor Model No 283707 0111-01 91090411.
Air and fuel mixture is being pushed out of the carby on the compression stroke.
I have reseated the valve and adjusted the valve clearance and checked for valve free movement.
At the start of the compression stroke the inlet valve hasn't closed completely.
As the piston goes up on the compression stroke the valve closes completely at about a third of the way up to top dead center.
Ive noticed the inlet valve tappet seems to rotate during the upward motion of the piston on the compression stroke
till the valve is closed at about a third of the way up to top dead center.
The valve clearance was set at about .007in
Does anybody have any suggestions on this ?
