Small Engines (Lawn Mowers, etc.): rx75 john deere, squeeling, continueing

Question
Hello John,
  I have been working on my rx75 that has a few problems.  Reading your past work I believe I need a new igniter as my mower cuts off after it runs for a while and heats up.  Not a gas problem.  Checked that.  I was trying to get the kawasaki numbers for this engine but am unable to get the flywheel cover off.  If I give you the JD numbers off of the back of the mower can you get me the kawasaki numbers for the igniter I believe I need.  They are as follows, MORX75X479743
rx75 rid mow.  One of the other problems is that when it is turning over it will suddenly start shrieking/squeeling extremely loudly, while continueing to turn over, then stop making the noise all while continueing to turn over.  Is the starter starting to go bad. I have jumped both the solenoid and the starter as per your past instructions found on this site and both appear to be working.  It actually starts fairly easily but sounds horrible if I should have to let it turn over for a little longer than usual. Thank you for your time.  Your work is impressive as I don't know a whole lot but understand what you are saying most of the time.

Answer
You need to find the engine's model numbers and go to kawpower.com and look at the engine there, and you will get the correct Kawasaki
part numbers.

The starter sounds like it might be going bad, maybe.  The engine dying sounds more like maybe you should check your valve adj.

Post the engine's model numbers and we can go from there,
Thanks