Small Engines (Lawn Mowers, etc.): Yard Machine will not run, dc contactor, briggs and stratton

Question
OK i bought a 17.5hp l/C OHV Yard Machine,MTD Products, Briggs and Stratton Engine, it was working for nearly a year, every  weekend i would mow the lawn, air blow all the dirt, grass etc off after each mow, before each mow i would run through the check list in my manual and the one day  half way through mowing the lawn, i stopped to the mower and  had a break, when i went to start it again  there was nothing, after a few attempts i heard a sound coming out from the back end and thought it might have been the DC contactor and we replaced it however it still will not start, my husband check all the amperage as to where it's running and how it's running and we have found the from the battery terminal to the coil it is losing the voltage.  Can you please help, we are lost and when i contacted the company i purchased it through they told me to send it back and they will charge me later, to be quite honest it took me years to save up and buy this ride on mower as we live on and acre, prior to this mower i use to mow the lawn with a push mower, i don't want to have to do that again
Thankyou
sue

Answer
Hello Susan:

Sorry for the Delay. This Question was Located in the Question Pool. The Coil Requires No Voltage. The Coil is Grounded to Stop the Plug/s from Firing. Send me the Model Numbers Off the Mower, Please. With these I can Locate the Proper Manual and Better Assist you. **Generally the identification tag is on a part of the unit that, even after years of use, rarely needs replacement. For most of MTD power equipment, these tags are approximately 2" by 3" in size. They also have the MTD Products name, address and customer service phone number listed across the bottom. For hand held product, the tag is normally white and approximately 1" by 1/2" in size. Hand held i.d. tags are normally on an aluminum portion of the engine, somewhat set into the unit to protect the label from wear. (A bar code will also be on this tag.) Riding mower tags are located on the underside of the seat. For walk behind mowers this tag is found either on the deck or on the rear door of rear discharge units. Tiller model and serial tags are generally on the tine housing. The model and serial tags for two-stage snow throwers are located on the bottom of the main gear housing which is often called the belly pan, while single stage snow thrower tags are next to the key and primer. For other products like log splitters, chipper shredders and edgers, tags can be found on the frame or main housing.** From your Description it Sounds like a Safety Switch is Bad or Making a Bad Connection. If you Hit a Snag or this Does Not Correct the Problem,  I am Here if You Require More Assistance. Hope this Helps. Let me Know What Happens, Please. May the All Mighty Bless You and Yours. Thanks.

Good Luck

Respectfully

John

PS: I am Allowed to Answer 10 Questions a Day. If you See I am Maxxed Out, then Try Submitting your Question at or Just After 8pm EST (US). My New Day Starts then. Thanks.

Respectfully

John

Hello Again Susan:

Thanks for the Model Numbers. Have you Checked the Starter Solenoid for being Bad? **(with the Spark Plug/s Removed) To Check the Solenoid and Starter, Once you are Sure the Battery is Fully Charged/New, then Use your Jumper Cable Set and Attach the Positive Lead Onto the Positive Post of the Battery (make sure the Battery is Fully Charged or is a New Battery). Now Firmly Touch the Large Post on the Starter. If the Starter Does Not Turn and you can turn the Engine by Hand, then the Starter is Bad. If the Starter Turns the Engine Properly, Then Check the Solenoid. Firmly Touch the Small Post at the Base of the Solenoid that has the Ign Wire Attached to it. If The Starter Does Not Turn and the Solenoid Clicks, Then the Solenoid is Bad.** This being a New Mower, the Most likely Cause for this Problem is Going to be a Safety Switch Not Making Good Connection or the Wiring Harness has a Bad Place in it that is Causing a Ground to the Ign Coil. If you Hit a Snag or this Does Not Correct the Problem,  I am Here if You Require More Assistance. Hope this Helps. Let me Know What Happens, Please. May the All Mighty Bless You and Yours. Thanks.

Good Luck

Respectfully

John

PS: I am Allowed to Answer 10 Questions a Day. If you See I am Maxxed Out, then Try Submitting your Question at or Just After 8pm EST (US). My New Day Starts then. Thanks.

Respectfully

John