You have multiple problems. Need to analyse them separately.
If turning on the deck with no other changes kills the engine, it could be something on the deck causing the problem. Such as something wound around the blades, i.e. wire, string, or piece of wood blocking them. Or it could be bearing in a spindle has failed locking it up. It should not be the clutch as all turns when engaged.
When did you change the trans fluid and filter last? If filter is full it might cause slow hydraulics. Have you been using the right fluid?
Is the engine "bogging down" simply because the engine has not been serviced, i.e. air filter, fuel filter, dirty carburetor, etc.
You need to do some thinking on what the problem really is.
Same-Day Shipping! Most of our stocked parts ship the same day you order (M-F). Expedited shipping available, just call! Most prices for parts and manuals are below our competitors. Compare our super low shipping rates! We have the parts you need to repair your tractor. We are a Company you can trust and have generous return policies! Shop Online Today or call our friendly sales staff toll free (800) 853-2651. [ More Info ]
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.