Small Engines (Lawn Mowers, etc.): Kohler Motor, cub cadet lawn, kohler ohv

Question
I have a cub cadet lawn mower model 2186. The motor is a Kohler OHV, Model #186 (I think) Serial # is 2926115141,Family SKH624U1G2RA. I believe it is a 18 - 20 Horse power. It also says 624CC.
My Problen is the motoe will start but it immediately quits running. There is no gas restriction from the tank to the "T" where the gas line goes to carburetor. I have taken the carburetor off and it was clean. Is there something that helps the gas feed to the carburetor other than vacuum. Please help the mowing season is here.

Answer
Hello Mike:

This can be Caused by the Carburetor Solenoid or the Carburetors Internal Passages being Restricted and Requiring Cleaning. I Suggest you Do the Following: 1-  If the Carburetor Shut Off Solenoid has Current, then Remove the Carburetor Solenoid and Go to the Hardware Store. Purchase a Bolt of the Same Diameter and Threads. It Needs to be 3/4" Long. Put this Bolt in Place of the Solenoid. If this Corrects the Engine Problem, then Replace the Solenoid. ***NOTE: THIS IS FOR CHECKING THE SOLENOID ONLY I NEVER SUGGEST YOU OPERATE THE ENGINE WITH THE SOLENOID OUT OF THE CARBURETOR EXCEPT FOR TESTING PURPOSES*** Sometimes the Plunger is Moving, Just Not Far Enough to Allow the Gas to Enter the Jets. If the Carburetor Solenoid Checks Good, then 2- **Remove, Disassemble and Soak the Carburetor Overnight in Carburetor Cleaner (I Use Gunk). I have Found that Most People can Use a Breakdown/IPL and Disassemble the Carburetor Enough for Proper Cleaning. You Only have to Remove the Bowl (if Applicable), Float Pin (if Applicable), Float (if Applicable)  and Needle Valve and Any Adjustment Screws that Go Into the Carburetor Body. The Welch Plugs Do Not have to be Removed. Then Soak the Carburetor Body and Parts in a 1 Gallon Can of Gunk Carburetor Cleaner Overnight. The Can has a Parts Tray Inside it for the Small Parts. Once the Carburetor and Parts are in the Cleaner, you can Replace the Lid for Safety and to Prevent Accidental Spillage. Then Blow Out the Passages with Compressed Air. Install New Parts if Required.** 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