How can I get the blue print of my riding mower yard machine model#13am675go62

Do you need the manual for the machine or for the engine? Your model number comes back to a MTD Yard Man mower.

You can go to Briggs' website after you get the serial and model of the engine, for a manual on the engine.

If you need particulars for the mower - follow the link. Yard Man Riding Mower 13AC762F755

MTD Yard Machines 38 inch mower deck installation and removal

Check the shut off switch

You might want to refer to this Yard Machine Riding Mower Manual for troubleshooting techniques.

You can find the belt diagram for the MTD Yard Machine mower in the MTD Owner Manual. The diagram is on page 21.

If you go to the MTD website you can enter your model and serial number and you will be able to download your manual.
here's the link - http://www.mtdparts.com/webapp/wcs/stores/servlet/OperatorManualView?storeId=10101&catalogId=19502&langId=-1

You probably have in your area a number of small engine repair shops. You will have to get on the phone and start calling around for a used mower deck. They usually have many old mowers in there yards. If you decide you only want new it could be very costly. GOOD LUCK.

This msnusl might give you some help.

http://lawnandgarden.manualsonline.com/manuals/mfg/yard_machines/yard_machines_lawn_mower_product_list.html

There is no such thing as a 3,5 hp riding mower,a serial number or a model number would help,along with an actual question.