briggs and stratton 18.5 intek
on a craftsman tractor
This was given to my stepfather because it kept breaking starter gears.
I did a quick internet search and found the valves may need to be adjusted.
I replaced the gear.
with exhaust valve open, set intake at 0.004
with intake open sent exhaust to 0.004
It started right up and ran for about 10-15 minutes of mowing.
Suddenly lost RPM and stalled.
Now it will not start.
More searching on the internet I find they have weak cams.
The exhaust valve moves 0.066
while the intake moves 0.175
Did the exhaust lobe give up?