Welcome to the forum Nogomower!
Just starting with the simple things...does the engine turn over by hand as it should? Also, is the gear on the starter ever lifting and making contact with the flywheel gear or is it stuck? You may what to try lifting the gear on the starter just to verify to it can rise freely.
Just starting with the simple things...does the engine turn over by hand as it should? Also, is the gear on the starter ever lifting and making contact with the flywheel gear or is it stuck? You may what to try lifting the gear on the starter just to verify to it can rise freely.