Questionhi john, i hope you had a very nice holiday.i'm glad your back.
i have three places on my carburetor to adjust,i have clean the carb and also put in a new kit.my throttle idle stop screw,where should this be set at?
problems i am having with this carb are,it does sometimes backfire through the muffler,i can also see gas coming out from the choke area.i am having trouble adjusting the carb,
and when i put the auger on it stalls. it does surge.sometimes i can get it where it does not surge,but only for a few seconds.i slowly adjust the settings,but can not seem to get it right?is this carb problems or am i missing something else might be causing this problem?
it is a snow blower by toro. 524. model 31625 502081 and the tecumseh number is hs50 67074 41588.
p.s i ortder a manual ,it may be a week or so before i get it.
i'm glad your back.
greg
AnswerHello Greg:
Thanks. It was Good to Get Away for a Few Days. Even if I had the Wife and Kids Under Foot. LOL. I Hope you had a Great Holiday also. ****All the Carburetor Adjustments are the Same for Lawn Mower and Trimmers. There are Several Location for the Air Mixture Screws. The Idle Air Mixture Screws are Usually Located at the Top of the Carburetor Bowl and the Top of the Carburetor Body. If the Main Air and Idle Air Mixture Screws are Side by Side on the Side of the Carburetor, then the Idle Air is the Farthest from the Engine. The Main Jet Air Mixture Screw is Located in the Bottom of the Carburetor Bowl or Beside the Idle Air Screw on the Side of the Carburetor Body. Some of the Older Model Carburetors have the Main Jet Mixture Screw Straight in from the Top of the Carburetor Body (this is Rare anymore). If you have Cleaned the Carburetor (Disassembled and Soaked Overnight in Carburetor Cleaner (I Use Gunk). Then Blow Out the Passages with Compressed Air and Install a New Kit if Required. Now Setting the Air Mixture Screws: ****Turn the Idle Air and Main Air Mixture Screws In Until SNUG **Do Not Jam** Then Reverse Both Screws 1 1/2 Turns. Holding the Throttle Full Open, Start the Engine. Turn the Main Air Mixture Screw Clockwise Until Proper Revs are Obtained. Occasionally you May have to Turn this Counter Clockwise to Achieve the Proper Revs. Now Allow the Engine to Idle. Set the Engine Idle Screw (Not Idle Air) so the Engine will Stay Running if Required. Now Set the Idle Air Mixture Screw so there is No Hesitation when Throttling from Idle to Full Throttle. Reset the Engine Idle if Required.**** You can View a Breakdown/IPL of the Mower at this Site Addy, https://lookup3.toro.com/partdex/default.cfm and Select Start Parts Viewer. Now Enter the Model Numbers. Now Select View Assembly Drawings. 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 (HS50-67074). Then Select your Model and Download the File for Online Viewing. If there is Gas Coming Out of the Choke Area, then the Carburetor Float Needle Valve May Noy be Seating Properly and Slightly Flooding the Engine. This will Cause the Backfire you are Describing. If the Valve Clearance Requires Resetting you will have the Backfire Also. On this Engine the Cylinder Head has to be Removed and a Valve Spring Compressor (Special Tool $40.00) is Required to Perform this Repair. 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
