Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Hi my name is ***** ***** welcome to Just Answer . Try removing the spark plug and see if it cranks over easily , if so it sounds like a compression build up and could be a valve adjustment or a lose rocker arm etc
Here is a walk through on the vector carburetor and what to spray out with carburetor cleaner
Uokn the vector link was for another customer not sure why it went to yours
Have you checked the flywheel key ?
150 inch lbs, all briggs stuff is mostly inch lbs