Small Engines (Lawn Mowers, etc.): Starter/Timing Problem, twin cylinder engines, jumper cables

Question
B&S Model 287707 Type 1255-E1 OHV Starter acts as if battery is weak.  Bypassed all components and went straight to starter with jumper cables on truck. Even tried 2 different working starters.  Could this be a timing problem?  Is there a timing gear that could be worn or stripped?  What is the procedure for replacing?

Answer
Hello Buddy:

This is a Common Problem with the OHV Engines. Usually this is Problem is Caused by the Valve Clearance Require Adjusting. Reset the Valve Clearance. 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). 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 Locks and Set the Intake Valve Clearance to .004in -.006in and the Exhaust to .006in - .008in. 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.** On Some Engines you can Us a Straightened Coat Hanger and Feel the Piston. Be Careful and Dont 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/IPL of the Engine at this Site Addy; http://www.briggsandstratton.com/maint_repair/manual_and_more/doclist.aspx?categ... and Enter the Model Numbers (287707) and the First 4 Type Numbers (1255) in the Appropriate Boxes and Click GO. Then Select Download PDF. 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

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Respectfully

John