QuestionHI ,WHAT DO YOU THINK OF THIS ? MY SNOWBLOWER WAS RUNNING GREAT IN THE FALL WHEN I TUNED IT UP AND CHANGED ALL THE FLUIDS. IT STARTED UP FINE .DURING THE FIRST SNOWFALL IT STALLED OUT EVERY COUPLE OF MINUTES BUT I MANAGED TO GET THROUGH MY DRIVEWAY AND MY NEIGHBORS.I THEN CHANGED THE SPARKPLUG ALTHOUGH IT LOOKED FINE, NO OIL OR DARK COVERING, AND I DRAINED THE GAS ALSO.THEN IT WOULDN,T START.I TOOK THE CARBURATER OFF TO CLEAN IT OUT, IT LOOKED CLEAN NO VARNISH OR YELLOWING INSIDE. I PUT IT BACK TOGETHER USED PERMATEX TO SEAL ALL GASKET CONNECTIONS AND RESET THE 2 SCREWS TO 1 1/2 TURNS OUT. I CAN START IT ON CHOKE 2 OR 3 PULLS THEN IT IDLES AT FULL THROTLE .NO AMOUNT OF ADJUSTMENT IS SOLVING THE EXTREME HIGH IDLE. MANUALLY PUSHING THE THROTLE WILL SLOW IT DOWN SOMEWHAT.THERE IS A WIRE NEAR THE TOP OF THE CARBURATER THAT IS NOT CONNECTED TO ANYTHING. I CONNECTED IT TO THE CLOSEST THREADED HOLE THINKING IT WAS A GROUND BUT THEN THE ENGINE WOULD NOT START AT ALL SO I DICONNECTED IT AND IT STARTS AND RUNS LIKE I DESCRIBED.THERE WAS ALSO A SPRING WHICH MIGHT OF COME OFF WHEN I REMOVED THE CARBURATER THAT I FOUND WHEN PUTTING IT BACK ON.I CAN,T FIND ANY LOCATION FOR THIS SPRING IN MY MANUAL OR ONLINE .IT IS ABOUT 1 INCH LONG 3/8 IN DIAMETOR WITH A HOOK ON EACH END.I TRIED TO ASK TORO ABOUT IT BUT THEY DIRECTED ME TO THE NEAREST DEALER WHO SAID THE SPRING IS NOT NECESSARY.THE ENGINE IS A BRIGGS AND STRATTON I BELIEVE 8 HP. ALSO THE KEY TO SHUT IT DOWN IS NOT WORKING NOW BUT I WILL DEAL WITH THIS LATER UNLESS IT IS RELATED. THANKS FOR YOUR TIME I HOPE YOU CAN DIRECT ME TO MY NEXT STEP. MY EXPERIENCES WITH THE LOCAL REPAIR PLACES IS DISSAPOINTING.THANKS AGAIN
AnswerHello Mitch:
>>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 () and Click Search. Now Select View Assembly Drawings for your Year Model.
>>The Wire you Located is the Engine Shut Off Wire that Grounds out the Coil. It is Attached to the Grounding Terminal at the Throttle Bracket or it May Attach to the Key Switch if Applicable.
>>The Spring May be the Governor Control Spring. If it is Not Attached to the Throttle Control Plate and the Governor Arm, then the Engine May Start and Idle but will Not Respond to Throttle Lever Movement.
>>The Following is a Basic File I Made for Cleaning Carburetors. Any Input is Appreciated. Even though the Carburetor Looks Clean, the Internal Passages May be Restricted with Varnish that Gas Causes to Build Up over Time.
>>Spray Cleaners Remove this Varnish in Layers, so Soaking is the Only Sure Way to Remove ALL this Varnish.
>>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 (if Applicable), Float Pin (if Applicable), Float (if Applicable), Needle Valve.
Remove Any Adjustment Screws that Go Into the Carburetor Body. The Welch Plugs Do Not have to be Removed.
>>If you are Able to Remove and Disassemble the Carburetor and Keep the Gaskets Intact, then Usually these Gaskets can be Reused. The Only Parts you May Need to Replace is the Needle Valve.
>>The Float Needle Usually is Not Replaced Unless it is Not Operating Properly (the gas flow not shutting off and the carburetor is Flooding). Do Not Remove the Main Nozzle. This is a Pressed Fit and Removal is Not Required for Cleaning. Soaking and Blowing the Carburetor Out After Soaking will Clean the Nozzle.
>>Once Disassembled, 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.
>>***(Do Not Use High Pressure Air for the Zama Carburetors, they have Check Valves for the Primer and these are Usually Blown Out of the Carburetor if Not Careful. Allow the Zama Carburetor to Set on a Drip Pan and Dry)***.
>>****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 Nearest 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 This Carburetor has a Single Air Adjustment (Except Tank Mounted 9200 and 100900 Engine Model Carburetors), Use the Section Above that Pertains to Full Throttle RPM Air Mixture Screw and then Adjust the Screw if Required to Eliminate Any Hesitation when Throttling from Idle to Full Throttle.
>>For the 9200 Model Tank Mounted Carburetor Adjust the Air Mixture Screw Full In, then Reverse 1 1/2 Turns. Set the Throttle Lever to Full Throttle and Start the Engine.
>>Now Carefully Use 1 Finger and Open the Throttle Plate and Over Rev the Engine Slightly. If the Engine Over Revs and Does Not Struggle to Over Rev, then the Carburetor is Set. If the Engine Struggles to Over Rev, then Turn the Adjustment Screw In 1/4 Turn and Repeat the Over Rev Test.
>>If you Adjust to 1/2 Turns In and the Engine Still Struggles to Over Rev, then Return the Adjustment Screw to 1 1/2 Turns Out from Snug and Turn the Screw Out 1/4 Turn. Do the Over Rev Test. Continue this Process Until you have the Engine Over Revving without Struggle.
>>By Adjusting the Carburetor on this Style Carburetor Until the Engine Over Revs without Struggle, you have Adjusted the Air Mixture to the Best Possible Setting.
>>This file was Intended to Give you the Basic Carburetor Cleaning Instructions and May Not Reflect Your Carburetor Components.
>>If you have Questions, Please Ask. The links above Provide Good Directions on Cleaning the Carburetor. Make sure you use an Compressed Air to Blow through all the Carburetor Passages to make sure they are Clear.
>>1- http://www.repairfaq.org/samnew/lmfaq/lmclctc.htm
>>2- http://www.cpdonline.com/692509.pdf .
**The Throttle Cable Attaches to the Throttle Control Bracket. The Cable Moves a Slide that Moves a Pivot. The Pivot has the Spring Attached to it and the Other End of this Spring Attaches to the Governor Arm. The Solid Link Connects to the Governor Arm and goes to the Throttle Shaft on the Carburetor. When the Throttle Cable is Moved it Moves the Pivot and the Pivot Pulls the Spring. The Spring Pulls the Governor Arm and the Governor Arm Moves the Throttle Shaft. Usually the Spring is in the Lower Hole in the Governor Arm and the Solid Link is in the Top Hole of the Governor Arm.**
>>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. Be Safe and Happy. Thanks.
Good Luck
Respectfully
John
PS: I am Allowed to Answer 5 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
