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I have a 20 hp and 24 hp overhead valve engines. Both are in
I have a 20 hp and 24 hp overhead valve engines. Both are in garden tractors. The 20 hp has always had intermittent valve noise and the 24 hp has just started doing the same. Have you come across this… read more
Donald
Donald
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I have a Kohler 17.5 hp on a craftsman rider it is not
I have a Kohler 17.5 hp on a craftsman rider it is not running right now. changed spark plug and fuel filter it looses power going up slopes in the yard and backfires high idle at times … read more
Curtis B.
Curtis B.
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Associate Degree
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I have the a kohler 19 hp sv590 engine on an Ariens riding
i have the a kohler 19 hp sv590 engine on an Ariens riding mower. Went to shut the mower off, lowered the rpms it backfired then would not restart. checked oil and it was fine also checked for compres… read more
Curtis B.
Curtis B.
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17 hp craftsman lawn tractor with kohler cv490s engine.
17 hp craftsman lawn tractor with kohler cv490s engine. Tractor ran fine forst couple times out. Third time out it started but within minutes died like it ran out of gas...gas level good. From that ti… read more
JON
JON
Master Service Tech
MASTER SERVICE TECHNICIAN
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I have an exmark ZTR with a Kohler OHV 25 hp Vtwin. I was
Hi I have an exmark ZTR with a Kohler OHV 25 hp Vtwin. I was cutting along just fine when the engine started popping, began to run on one cylinder and stopped. I knew right away that I lost a valve. T… read more
Curtis B.
Curtis B.
Technician
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My craftsman 17 hp Kohler back fires through carb wont start
my craftsman 17 hp Kohler back fires through carb wont start . how do I adjust valves on this… read more
Curtis B.
Curtis B.
Technician
Associate Degree
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, I have a 25hp kohler command on my 61" snapper ez rider.
Hello, I have a 25hp kohler command on my 61" snapper ez rider. I shut it off when it was quite hot and it backfired loudly. When I started back up it sound and runs bad, like only one cylinder. I che… read more
Curtis B.
Curtis B.
Technician
Associate Degree
32,682 satisfied customers
I have a 17.5 Kohler that just developed a loud knock internally.
I have a 17.5 Kohler that just developed a loud knock internally. It also has crankcase pressure when you remove the dip stick while running. It was running fine then when i restarted the engine the k… read more
Curtis B.
Curtis B.
Technician
Associate Degree
32,682 satisfied customers
Hello, I have a Kohler model CH20S spec 64700 on a Kubota ZTR. Sometimes
Hello, I have a Kohler model CH20S spec 64700 on a Kubota ZTR. Sometimes while cutting grass the mower will start to backfire. I remove the valve cover that has the fuel pump attached & find that the … read more
Curtis B.
Curtis B.
Technician
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JOHN DEERE L 110 W/ KOHLER 17.5 HP - MODEL CV491S SERIES 27509 MOWER
JOHN DEERE L 110 W/ KOHLER 17.5 HP - MODEL CV491S SERIES 27509 MOWER WAS RUNNING FINE UNTIL IT BACKFIRED, IT THEN STARTED SMOKING AND LOSS OF POWER. PULLED SPARK PLUG, IT WAS COVERED W/ OIL CHECKED BR… read more
Curtis B.
Curtis B.
Technician
Associate Degree
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I have a 2006 Sears Craftsman Ryder Mower (YH4500 ) With a
I have a 2006 Sears Craftsman Ryder Mower (YH4500 ) With a 20 Hp Kohler Engine With 1139 hours on the clock. I had just cut 1/2 the back yard and it acted like it ran out of fuel. the mower was chokin… read more
PK.
PK.
Owner
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Hello. I have a Craftsman LT-1000 with a Kohler 17 HP OHV.
Hello. I have a Craftsman LT-1000 with a Kohler 17 HP OHV. It starts smoking after running for about 5 minutes. I found oil under the air filter and behind the valve cover. Oil was leaking onto the mu… read more
smallenginehelp4u2
smallenginehelp4u2
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I have a kohler engine OHV 17.5 HP. Puts out white smoke when
I have a kohler engine OHV 17.5 HP. Puts out white smoke when giving it gas or when throttling down. Changed out rings which helped some, but it still does it. Could it be the hydraulic lifters, and i… read more
Curtis B.
Curtis B.
Technician
Associate Degree
32,682 satisfied customers
Hi guys; Engine is model 21A707 in a murray 38inch/12.5 hp
Hi guys; Engine is model 21A707 in a murray 38inch/12.5 hp mower.. When unit is started with throttle in fast position -, it runs with lots of backfires... continuous bsckfires it seems to me. When st… read more
Curtis B.
Curtis B.
Technician
Associate Degree
32,682 satisfied customers
Kohler 17HP vertical shaft engine CV490S, approx 200 hours.
Kohler 17HP vertical shaft engine CV490S, approx 200 hours. It appears exhaust valve does not fully close as if lifter is stuck fully extended. Compression approx 70 lb. Backfires thru carb and exhaus… read more
Curtis B.
Curtis B.
Technician
Associate Degree
32,682 satisfied customers
I have a 17.5 HP Kohler engine in my Sears garden tractor.
I have a 17.5 HP Kohler engine in my Sears garden tractor. The engine wouldn't turn over when I engaged the starter circuit so bought a new battery and starter (it is located at my cabin many miles fr… read more
RUSS
RUSS
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Vocational, Technical or Trade Scho
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I have a Briggs and Stratton Vangaurd 15 hp engine 28q777-0128-01
I have a Briggs and Stratton Vangaurd 15 hp engine 28q777-0128-01 it will not start but backfires. I have checked fuel and spark both look ok. I poped open the OHV cover and the tappets are Very loose… read more
CJBennett
CJBennett
Owner of Power Equipment Shop
Vocational, Technical or Trade Scho
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Kohler Command CV15S. Smokes intermittently(blue white).
Kohler Command CV15S. Smokes intermittently(blue white). Occasional backfire. Sooty sparkplug. Wife says engine odor is "strong". I am working on this lawn tractor for my son in law. It seems to have … read more
RUSS
RUSS
SERVICE TECHNICIAN
Vocational, Technical or Trade Scho
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