Small Engine Troubleshooting Problems? Ask a Mechanic Now.
What is the compression? Needs to be above 120 psi. Try putting a teaspoon of fuel into the spark plug hole, and see if it will try to start. If compression is low, it will never start!
Next thing to check would be the timing key under the flywheel to crankshaft.
Air needles on both, 1 1/2 turns out for initial start.
Are the fule hoses correct?
Check the fuel hose routing, the primer pulls fule through carburetr and has to return it to the tank.
I have an appointment, will check back later! Sorry.