It is possible that you have 2 different issues. It is hard to tell from your description if you are saying that the wind down noise is the noise of the starter running and if it is, is it running w/o the key switch activated. Solenoids are the most likely cause for allowing the starter to run on- but not the only one. They are not typically a fuse blower- but could be. On a 4 post solenoid one of the 2 small wires supplies a ground and the other 12 volts when the key switch is activated. If I am assuming something I shouldn't, please elaborate on what you believe the noise is.

Yeah, one suggestion: Post the engine model and type numbers. Don't know whether you're talking about Briggs, Tecumseh, or Kohler.

After again verifying that mower drive belt is routed inside all belt guides and engaging all pulleys (see manual), make sure that Deck clutch rod and lever are assembled together with spring retainer in place. Start engine, engage mower. Deck blades should begin operating. If not, re-check all pulleys to turn freely with no slop. Also - with engine off - engage mower and check to see that belt is tensioned. If not, belt stretched or mower clutch mechanism faulty or needs lubrication. If needed, see link below for downloadable manual. Here is a link that might be useful: manual

yardman1081- RUN (don't walk) with that power washer to the nearest trash can and give it a quick toss. Worst thing you could EVER turn loose on a lawn tractor. Use compressed air or leaf blower instead. M/W, remove spark plug(s) and crank engine - Observe if liquid is expelled out spark plug hole(s). If so, continue cranking engine until no more liquid is seen coming out - replace plug(s). Immediately drain/replace crankcase oil and filter as most likely water has entered crankcase. Remove air cleaner and allow cleaner element to dry - if wet from water. Allow ALL engine components to dry completely also. Using RATTLECAN CARB CLEANER, spray several shots directly into carb throat while assistant is cranking engine in a normal fashion (1/2 throttle, no choke, PTO off, Cl/Brake pedal fully depressed). Engine should start/run. If not, post back with details and we will go from there. Note: your starter motor most likely hangs like a "pail" and will catch/hold water from that washer - don't know if it has a drain hole or not. Just hope it does...