Small Engines (Lawn Mowers, etc.): starter cord hard to pull, twin cylinder engines, compression stroke


Question
I have a "General Power Products" 13 horse engine on a log splitter. It's a "Honda" knockoff, made in China. I removed the pump Assy. from the engine, no change. Removed muffler, no change. Removed spark plug, it turns over easy. Is there a pressure releif valve? It did this a couple of times, but started after a few slow pulls on the rope. It now will not pull without binding.
Thank You in advance for an suggestions

Answer
Hello Mark:

>>Since this is an OHV Engine, then
>>Set the Valve Clearances.
>>The Valve Clearances with either be Intake and Exhaust .004in or the Intake is .006in and the Exhaust is .008in.
>>The Compression Release Operates the Exhaust Valve Slightly just before TDC.
>>If it is Not Operating Correctly, you will have this Problem.
>>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 .005in -.007in and the Exhaust to .007in - .009in. 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.
>>If you Hit a Snag or this Does Not Correct the Problem,  I Hope to be 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