QuestionI have an Ariens 932 snow blower [ST420} with a Tecumseh HS40 engine (55560K - SN 7240B). I want to find out how to do a tune up on it, believing it may not be a major effort. Is there any light you can shed on this and any thoughts as to where I might be able to get my hands on the literature to accomplish this task?
AnswerHello Jeffrey:
>>Most Repairs to Lawn Equipment are Simple if you have a Breakdown/IPL and the Proper Tools. Back when the Engine had a Point Set Located Under the Flywheel; a Tune Up was Somewhat more Involved that it is Today. For the Electronic Ign Coil/Ign Module/Magneto Engines a Tune Up Consist of a New Plug, Oil Change, Air Filter Clean or Replace and I Usually Spray Carburetor Cleaner Into the Carburetor Throat once the Engine is Running to Clean the Top of the Piston and the Cylinder Head of Minor Carbon Deposits that Accumilated During Use.
>>If you are Using Sta-Bil in the Gas, then the Carburetor should Require No Maintenance Unless the Primer Bulb is Leaking or the Engine is Not Running Correctly and the Diagnostic Confirms the Carburetor is the Cause. I will Try to Break this Down as Best I can. I'm Not a Writer. LOL.
>>You can View a Breakdown of the Mower at this Site Addy; http://www.jackssmallengines.net/parts.asp and Select Shop Online Parts Look Up. The Select the Model Tab. Then Select the OEM (Ariens) and Enter the Model Numbers (Example: 924020-000101). Then Double Click on the Model in the Results Area. Select the Sectional File. Now you can View the Section of the Mower that Pertains to this Repair.
>>You can View a Breakdown/IPL of this Engine at this Site Addy, http://www.outdoordistributors.com/ and Select the T. Then Select Tecumseh. Then Select Don't have Part Numbers. Then Enter the Model Numbers HS40-55560K. Then Select your Model and Download the File for Online Viewing.
>>Remove the Air Filter and Clean with Kerosene. Using a Lint Free Rag, Squeeze the Filter and Remove the Kerosene from the Foam. A Small Amount of Oil from the Kerosene is Left in the Filter. **If it is a Paper Filter, then Blow Out the Opposite Direction than the Aire Flows During Engine Operation with Compressed Air.
>>Remove Crankcase Drain Plug and Drain the Oil. Remove the Fill Cap to Vent the Crankcase.
>>Remove the Spark Plug.
>>Spray WD40 or Champion Spray Lube onto Any Control Linkage for the Engine. This May be a Throttle Control Bracket, Throttle Lever and the Carburetor Sides where the Throttle Control Rod Enters and Exits (Depends on the Engine).
>>Remove the Blower Housing (metal Engine Cover) from the Engine and Clean Out from Under the Housing.
>>Replace Blower Housing.
>>Replace Drain Plug and Fill to Proper Level.
>>Replace the Spark Plug.
>>Start the Engine and Allow to Idle for Approximately 1 Minute and then Rev to Full Throttle. Spray Carburetor Spray Cleaner into the Carburetor Throat. Do Not Stall the Engine. Several (3 or 4) Short Bursts should do.
>>Shut Off the Engine Once it is Running Normally.
>>Attach the Air Filter.
>>Please, Do Not Hesitate, 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. Comments and Ratings are Greatly Appreciated. Thanks.
Respectfully
John
