Small Engines (Lawn Mowers, etc.): B&S quattro linkage, code numbers, small engines

Question
Hello, this is a bit dumb but, I'm repairing a neighbors Murrey push mower with a B&S 4.0 quattro motor. I cannot find the model Numbers on the engine and I need to hook the linkage back up as he disconnected it with out documenting it. Would you be able to shed some light on how this goes? Thanks.

Answer
 Hello Cheis:

 The Model, Type and Code Numbers are found on the Blower Housing (metal engine cover). Look where the Housing sits over the Spark Plug. If you are able to photo the area you are looking at. I have a site just for Sending and Recieving Photo so I can Better Understand some Questions. Having worked on Mowers and Small Engines for so long, I tend to Misunderstand a Question when it makes Sense to the person asking. There are Several Points Where the Linkage Could Have Been Disconnected From. If you find the Model #'s and send them I will look in my book and send you some instructions on each Connection Point.

 Respectfully

 John