Small Engines (Lawn Mowers, etc.): E-Z-GO, crankcase oil, adjustment screws

Question

Subaru Robin Engine Im I have a 2006 E-Z-GO ST Sport II utility vehicle/golf cart with a Subaru Robin EH35C 350cc engine.  This is a small air cooled engine.  Do you take questions on this engine?  If so, it has a problem that sounds similar to a question you answered on 7/19/07 regarding white smoke.  Engine lost a lot of power a couple of months ago, but I haven't been able to find the cause.  Recently started exhausting large amounts of white smoke right after I gassed it up.  Thought it may have been bad gas so drew from another can (2 cans filled at same time).  No change.  No smoke first minute or so after start then engine will bog slightly, for a few seconds, and dump a lot of white smoke, then speed up again with much less smoke.  Bogs again in a 30 or 40 seconds and repeats.  Any suggestions?


Answer
Hello Ron:

You can View a Breakdown of this Engine at this Site Addy; http://www.robinamerica.com/manuals/index.lasso and Select Engine Manuals. Now Select your Engine and Dowmload the manual for Online Viewing. The Problem you Described is Usually the Carburetor Float Needle Valve Not Seating Properly and Allowing the Engine to Flood. Is the Crankcase Oil Contaminated with Gas? If Yes, then Install a Manual Cut Off Valve in the Gas Line and Manually Turn Off the Gas Flow to the Carburetor when the Engine is Not in Use. Is this a EH35c or EH35V? I Could Not Locate the EH35C Engine is Why I am Asking. I Suggest you  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, Float Pin, 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. Have a Happy Holiday Season and May the All Mighty Bless You and Yours. Be Safe and Happy. 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