Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Welcome to JUST ANSWER small engines, let me try to help you !! What is the engine model number? Need the numbers, example, SV735-12345. The timing marks do not always relate to TDC on the piston. Always go by the factory marks, as someone previous, could have made there own marks, before dis-assembly. Also have you checked the key between the flywheel ad the crankshaft? That is the second timing mark!
See section 10 in service manual link.
Do you see the manual above?