the intake valve is bigger
The aluminum is the exhaust.
Bp
.003 exhaust-.005 intake
.004 intake.....006 exhaust
Briggs says on a cold engine, .005 on intake & .007 on exhaust. Wider on exhaust to ensure you don't burn a valve.
.007 on the intake and .011 on the exhaust.
Turn the flywheel to BDC (bottom dead center) as you continue to turn the flywheel into the combustion stroke, it will be the first valve to move.
For the aluminum the intake valve clearance is .005 to .007 inches. exhaust valve clearance is .007 to .009 inches. Cast iron is - intake valve is .007 to .009. inches exhaust valve is .017 to .019 inches
The intake valve is always the larger of the two.
0.006"
.004-.006
Yes
005 in 007 ex
0.004 - 0.006"