Vintage Sears Garden Tractors
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CARBURETOR FOR 18/6 HP ONAN ENGINE,#142-0568,NEED

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CARBURETOR FOR 18/6 HP ONAN ENGINE,#142-0568,NEED  Empty CARBURETOR FOR 18/6 HP ONAN ENGINE,#142-0568,NEED

Post  CARED on October 28th 2019, 2:02 pm

NEED TO FIND A CARBURETOR FOR MY SEARS 1977 GARDEN TRACTOR 18HP TWIN , MODEL 917.25191

PART # 142-0568 OR A UPGRADED UNIT -- THANKS
CARED
CARED

Number of posts : 5
Registration date : 2019-10-28

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CARBURETOR FOR 18/6 HP ONAN ENGINE,#142-0568,NEED  Empty CARB. FOR 18 HP ONAN

Post  Georgia SS on October 29th 2019, 12:06 pm

HI
I BELIEVE ABOUT THE ONLY PLACE FOR A CARB. ON A SEARS SUBURBAN 16 OR 18 HP ONAN WILL BE ON EBAY, I HAVE DONE A LOT OF SEARS RESTORATIONS (20) SO HAVE A FAIR IDEA OF PARTS AVALIBLITY AND PRICES. NOT KNOWING YOUR PLANS FOR THE TRACTOR MAKES IT HARD TO SUGGEST THE ROUTE TO GO ON REPAIR. HAVE SEEN SOME NEW OLD STOCK (40YEARS OLD) FOR $200-$300, USED FOR $35-$45 STILL 40 YEARS OLD, WHY NOT USE A REBUILD KIT IN YOURS, IF IT IS FUEL PUMP PROBLEMS, JUST PUT $10-$15 EXTERNAL PUMP, IF YOU WANT TO REALLY FIX YOUR MOTOR MY ADVISE IS TO REPLACE THE MARVEL CARB WITH A LATER MODEL NIKKI CARB.FOR ABOUT $100 CARB.MANIFOLD OR ADAPTER & AIR CLEANER ASSY. THE NIKKI CARB, WILL MAKE YOU AND THE ONAN VERY HAPPY. CAN GIVE MORE DIRECTIONS IF YOU DECIDE TO REPLACE WITH A NIKKI.
HAVE A GOOD ONE
JIMMY
IN SOUTH GEORGIA

Georgia SS

Number of posts : 218
Registration date : 2011-09-15

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CARBURETOR FOR 18/6 HP ONAN ENGINE,#142-0568,NEED  Empty 18/6 HP CARBBURETOR

Post  CARED on October 29th 2019, 1:08 pm

PLAN TO USE TRACTOR TO JUST PLOW SNOW.

SEEMS FUEL PUMP PROBLEM, WHAT TO BUY AND HOW TO INSTALL A FUEL PUMP THAT YOU SUGGESTED.

ALSO HOW TO UPGRADE TO THE NIKKI CARB YOU SUGGESTED.

I DID PUT IN A KIT AWHILE BACK --
THANKS
CARED
CARED

Number of posts : 5
Registration date : 2019-10-28

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CARBURETOR FOR 18/6 HP ONAN ENGINE,#142-0568,NEED  Empty CONVERTEDONAN CARB

Post  JWB on October 17th 2020, 12:25 pm

Take Jimmy's advice and install the new replacement carb. He walked me thru mine. Runs like new.

JWB

Number of posts : 60
Registration date : 2012-01-25

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CARBURETOR FOR 18/6 HP ONAN ENGINE,#142-0568,NEED  Empty CONVERTED ONAN CARB.

Post  Georgia SS on October 17th 2020, 7:14 pm

ANOTHER CARBURATOR STORY, I HAD TRIED TO INSTRUCT A GUY HOW TO ADJUST HIS DD CARB. DIDN'T WORK SO HE BRINGS THE SUBURBAN TO ME FOR A NIKKI CARB. SWAP, PRICES ON EBAY HAS GONE CRAZY, MAKING THE SWAP TOO EXPENSIVE, WELL SO I DECIDED TO FIX HIS, MAINLY BECAUSE IT WAS THE BEST STARTING ONAN AFTER SETTING DAYS OR WEEKS I HAD EVER SEEN, THE CARB. HAD A MFG.OR REBUILDER TAG WITH 10/97 DATE,HE OR THE PO. KNEW NOTHING ABOUT CARBS.SO KNOW THEY DID NOT CHANGE ANYTHING, FOUND A VERY SHORT LOW SIDE ADJ. NEEDLE THAT WAS ONLY FILLING THE HOLE, NO WHERE REACHING THE ORFICE HOLE, AFTER A GOOD INSPECTIO FOUND A SECOND LOW SPEED ORFICE HOLE DRILLED BESIDE THE ORIGINAL, HOW IT COULD HAVE GOT THERE IS BEYOND ME, BUILT HIM A CARB. THAT I HAD, COMP. TEST.,CHG.INTAKE MANIFOLD, VALVE ADJ., NEW SPARK PLUGS, NOW RUNS AS SWEET AS AN ONAN SHOULD.
HAVE A GOOD ONE
JIMMY

Georgia SS

Number of posts : 218
Registration date : 2011-09-15

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