QuestionI acquired this snow blower from my dad. It started right up for the first few times and since then I haven't been able to get it to start.
Today, after a fresh snow I attempted to start it again. No go. I started to inspect the engine to see if anything looked fishy.
I noticed that there was a tube not connected below the carb and a spring loaded screw sticking out from the bottom of the carb. I ran my hand near this and noticed that when I pushed on the spring loaded screw, fuel would spill out.
I got the crazy idea in my head that this tube is supposed to be hooked up to this spring loaded screw, but the tube wouldn't reach the carb. I am wondering if I knocked off a piece of tubing when sliding it back into it's "spot" in the garage last time.
Do I need to connect this tube with the spring loaded screw? Should fuel be spilling from this spring loaded screw?
I am pretty novice at small engines so be nice. Thanks in advance!
Tecumseh OHSK70 725078
AnswerHello Greg:
The Correct Model Number for this Unit is Tecumseh Model OHSK70-72507B. 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. Then Select your Model and Download the File for Online Viewing. On the Side of the Carburetor Nearest the Engine there should be a Port for this Tube to Attach to. The Screw in the Carburetor Bowl is an Air Mixture Screw. There Should be No Gas Coming from this Screw. The Air Mixture Setting is Most Likely Off and Requires Resetting. ****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.**** 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
