QuestionJohn,
My neighbor and I both bought brand new Bolens lawn mowers at the local
big box store in early May this year. Price was good. We both have had
problems from the get-go. Bolens #11a-074E065 Briggs engine#10T502-
0457-B1-08021554. Here are the problems: His doesn't seem to rev-up as
much hi as mine and also is surging all the time even in short grass. Mine is
hard to start(3-4 pulls after priming the 3 times) and surges some, but not as
bad as his does and sounds like it is also running slower than my olde mower
did. We both use isopropel drygas. Being brand spanking new, sounds like
something was probably not adjusted right at the factory. What should I be
looking for here?
Thanks.
AnswerHello Jerry:
From your Description it Sounds like the Carburetor Air Mixture Screws are Out of Adjustment. You can View a Breakdown of this Unit at this Site Addy; http://www.buymtdonline.com/webapp/wcs/stores/servlet/Home_Bolens_10101_19502_-1 and Select the Use Our Detailed Parts Finder. Then Enter the Model Number (11A-074E065) and Click Search. Then Double Click on your Model. 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 (10T502) and Type Numbers (0457) in the Appropriate Boxes and Click GO. Then Select Download PDF. Now, After Viewing the Breakdown for this Engine, I See that the Carburetor for this Engine is a Throw Away (Plastic) Carburetor. There are No Air Mixture Screws on this Carburetor and it is Designed to be Replaced Rather than Cleaned and Rebuilt. Also, these Carburetors are Set up to Run the Engine at a Lower RPM than Other Carburetors are. You can Change (or Shorten the Original One a Small Amount) the Governor Spring and the Engine Speed will Increase. The Surging May be the Governor Not Set Properly or the Carburetor has Trash in it that is Restricting the Gas Flow to the Engine, Causing the Surging. I have Included the Instruction File for Setting the Governor in Case you want to Reset the Governor and See if this is the Cause of the Surging Problem. I Suggest you Return the Mowers to an Authorized Briggs and Stratton Engine Dealer and have them Make the Repairs Under Warranty. Usually the Engines have a Full 2 Year Warranty. The Following is an Instruction File I Made for Making this Adjustment. Any Input is Appreciated. If you Removed/Loosened the Governor Arm to Remove the Carburetor, then Reset the Governor. **To Reset the Governor; Loosen the Governor Arm Bolt and Turn the Governor Shaft Clockwise Until it Stops. Using the Governor Arm Hold the Carburetor to Full Throttle. Now with the Shaft Full Clockwise and the Governor Arm and Carburetor Held at Full Throttle, Tighten the Governor Arm Bolt. If the Engine Still Runs Full Throttle, then Reverse the Rotation of the Governor Shaft, but Still Hold the Carburetor at Full Throttle with the Governor Arm. If it Still Runs at Full Throttle, then Check the Internal Governor.** 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
