If they are both 42" it will fit the mower size wise. But you will have to make your own brackets. The mounting hardware and brackets are not interchangable.
What is the valve setting on a 15.5 hp yard machine mower by MTD?
Try Sears or a yard equipment shop.
There are a number of different types of lawn mowers out there, but none of them hold a candle to a Craftsman lawn mower. The level of name recognition that Craftsman enjoys does not come easily, and there are a number of ways that you can make sure you get the best Craftsman lawn mower for your unique yard space. First, make sure you get a lawn mower that is appropriate for the size of your yard. This is the first mistake that most people make. Many will choose to get a larger mower than they need and they end up regretting it.
model numbers beginning with 917. are manufactured by AYP, american yard products
How to Change the Tires on Self-Propelled lawn Mower
Neither of those companies make their own engines. Most engines will changes from one mower to another with minor adjustments as long as they are the same type engine. If they are both the same size and make engines then there should be no trouble.
Buy a plug wrench.
Throttle cable may be stuck
you dont it is packed with grease from the manufacturer
no ,no plug comes pregaped set it at 32
On most MTD riders it is right by the seat hinge on the right side as you sit on the mower.
The kill switch is typically the ignition key. Depending on the mower it could also be a red push button labelled "emergency stop"