QuestionJohn,
I have a Murray Riding Mower (Model 425014x92) that will not start. Battery is good and charged. It will turn over briefly but stops. I have tested the starter on the mower by hooking battery direct to the starter and it engages but stops. No teeth are broken or damaged on flywheel or starter. I tried this multiple times. Also, I removed the starter from the mower and tested it by hooking it up direct to the battery and it does spin. Could the starter still be bad? What else could be the problem.
Thanks,
Phillip
AnswerHello Phillip:
>>From your Description it Sounds like the Compression Release is Not Operating as Designed.
>>Re-Set the Valve Clearances and this should Correct the Problem you are having.
>>The Following is a Basic File I made for Setting the Valve Clearances. Any Input is Appreciated.
>>**I Do Not Use the Setting Called for by the OEMs. I have Found that the Following Works Best.
>>Remove the Valve Cover (on the Dead Cylinder for Twin Cylinder Engines).
>>Check the Push Tubes and make Sure they are Not Bent.
>>Set the Cylinder you are Setting the Valves on to Top Dead Center on the Compression Stroke When Setting the Valve Clearance. Now Loosen the Valve Adjuster Lock and Using a Blade Style Feeler Gauge, Set the Intake Valve Clearance to .004in -.006in and the Exhaust to .006in - .008in. Loosen and Tighten the Rocker Arm and the Feeler Gauge is Placed Between the Rocker Arm and the Valve Top where the Rocker Arm Pushes on the Valve.
>>***BE SURE TO TIGHTEN THE ADJUSTER LOCK AFTER YOU HAVE THE PROPER VALVE CLEARANCE***
>>I have had Better Performance Out of the Mowers and Less Burnt Valves Using these Settings. Be Sure the Piston is at TDC on the Compression Stroke.**
>>If you Remove the Valve Cover and then Turn the Engine by Hand, you can Watch the Intake Valve Movement. When the Intake Valve Closes, the Piston will Just Starting the Compression/Power Stroke.
>>On Some Engines you can Us a Straightened Coat Hanger and Feel the Piston.
>>Be Careful and Don't Jam the Wire in the Cylinder. Usually the Piston will Push the Wire Out of the Spark Plug Hole with No Problems.
>>You can View a Breakdown of this Mower At this Site Addy; http://www.smallenginepartswarehouse.com/parts.asp and Select Shop Online Parts Lookup. Select the Model Tab. Select the OEM and Enter the Model Numbers (). Now Double Click on your Model in the Results Area. Now Select Sectional View. Now Select the Section of the Mower you Wish to View.
>>If you Jumped the Small Engine with an Automobile and the Auto Engine was Running at the Time, then the Auto Charging System Shorted the Small Engine Charging System.
>>****Never Use a Running Engine to Jump a Small Engine.****
>>The Charging Systems Usually are Different and the Larger AMP System will Short the Lower AMP System (Usually the Small Engine System).
>>Most Stators can be Tested Using the Guide at the Following Site Addy; For Testing the Electrical (Charging) System on Mowers you can Use this Site Addy; http://faqs.custhelp.com/cgi-bin/faqs.cfg/php/enduser/std_adp.php?p_faqid=3438&p... and Use the Link for AC Volts/DC Amps Meter Setting Chart. This is for Briggs Engines and Works Well for Kohler and Other Engine OEMs.
>>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. Be Safe and Happy. Thanks.
Good Luck
Respectfully
John
PS: I am Allowed to Answer 5 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. Comments and Ratings are Greatly Appreciated. Thanks.
Respectfully
John
