Toro 520lxi looking for the service manual for model 73545

The model number you listed comes up as a Murray riding mower.

Enter you model number at the Toro web site. I believe the manual will have the wiring diagram.
https://www.toro.com/en/customer-support

https://www.partstree.com/parts/ also will like have same. Just need the right model number.

This blower looks to the Tecumseh engines so try looking in the L head service manual for H 50-H80 engines under ignition timing.

http://www.mymowerparts.com/pdf/Tecumseh-Service-and-Repair-Manuals/TECUMSEH-SERVICE--REPAIR-MANUAL-3HP-TO-11HP-4-CYCLE-L-HEAD-FLAT-HEAD-ENGINES-692509.pdf

if you go to Toro dot com you can download all manuals there for FREE

Choose an operator manual or a service manual from this page. I'm sure a belt diagram is there.
http://www.toro.com/en-us/Professional-Contractor/Mowers/Commercial-Zero-Turn-Mowers/Pages/Model.aspx?pid=74296

Jump onto www.toro.com and download the free service manual for your machine. Note down all the details on the ID plate on the mower, you will need it to find the correct manual...... should be there.

Hi and welcome to FixYa. I am Kelly. You will need both your model number and serial number but you can get a manual at the link below that you can print.
(Most model and serial number plates list the model number, then a dash / hyphen, and then the serial number.) There is no other source other than a Toro Distributor for Owner's manuals or parts manuals. You can look up on line replacement parts on numerous sites.

Manual: https://lookup3.toro.com/request/request.cfm

Thanks for choosing FixYa,

Kelly

The timer SMART manuals that Toro has for the ECx models can be found here:

http://www.toro.com/home/customercare/interactivemanuals.html#6

If your manual is not on that page you will have to use the Toro "contact us" using this link:
https://homeownersolutions.toro.com/portal/server.pt/community/contact_us/223

Here are the 2 ECx manuals listed:

http://216.213.143.2/ProAuthor/ManProc.cfm?&sk=4253770A%2DE287%2D11DF%2D9262%2D00D0B789305D&&ProcID=8342&ManualID=222&ProductID=-1&Edit=No&Skill=1&Lang=-1

http://216.213.143.2/ProAuthor/ManProc.cfm?&sk=4253770C%2DE287%2D11DF%2D9262%2D00D0B789305D&&ProcID=8342&ManualID=256&ProductID=-1&Edit=No&Skill=1&Lang=-1

Thanks for choosing FixYa,

Kelly

I too was looking for the engine model number and serial number for my Toro mower to submit a claim for a class action suit. I could only find the "Mower" model and serial number. I found a guide to locate the engine information in the "Engine Service Manual" for my mower.To get the "Engine Service Manual", I went to Toro's website https://lookup3.toro.com/request/request.cfm and entered the "Mower" Model # and Serial Number. That brought me to a speific page for my mower with several manuals listed, including he "Engine Service Manual" which could be downloaded for free. The information for locating the Engine Model and Serial Number was found on the first page of the Preface. Here is a sample link for my mower Engine Manual https://lookup3.toro.com/request/filechek.cfm?Lang=EN&PubNum=492-4202&PubID=6924&Cust=anonymous_user&xCaller=Toro&PubType=9

Try jacks small engines online!