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Have had this for 5 years with no big issues.After spending last winter in heated garage there was smoking upon the first start which
has never happened before.Smoked for maybe 30-45 seconds after starting.Assumed it was from fogging motor but it has done this upon every start
since. It does not small like exhaust and oil is extremely clean and up to level.I DID notice that the smoking is not immediate as an exhaust smoke issue would be. It is delayed by 10-20 seconds of running so I am assuming it is something that is ON the exhaust and smokes as the exhaust heats up.It has to be near the muffler as it looks as if coming out of exhaust with some force.runs same as always so Im a little baffled????? anyone have this??? Charlie

Lets start with the model and spec number of your kohler engines. Different engines have different issues and we are just guessing without further information.

I will have to take a closer look for any numbers.You are referring to engine numbers and not mower correct?

crazy charlie said:

I will have to take a closer look for any numbers.You are referring to engine numbers and not mower correct?

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Correct. Also would be nice to post the actual mower model number from the tag under the seat.

ILENGINE said:

Correct. Also would be nice to post the actual mower model number from the tag under the seat.

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If it is a Kohler Courage single cylinder, most likely leaking valve cover. Drips oil down onto muffler and smokes when heated up by engine. One of several common issues with this dog Kohler Courage.

Tiger Small Engine said:

If it is a Kohler Courage single cylinder, most likely leaking valve cover. Drips oil down onto muffler and smokes when heated up by engine. One of several common issues with this dog Kohler Courage.

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Thats kinda what I was thinking since it does not smoke immediately upon start but shortly after .Im still working on taking a pic of the id tags .This mower is far from new .It was far from new when I bought it arrow 4 years ago.A leaking valve cover gasket wouldn't be a big surprise given its age.I wouldn't consider that a common issue since it has taken so long to occur.Lemme get the tags posted.Thanks Charlie

I have been calling my mower a T1000 but it is an LT1000. Is valve cover gasket difficult to do?? or should I leave it to my every other season servicing? Charlie

Looks like that engine uses RTV sealant for the valve cover.

ILENGINE said:

Looks like that engine uses RTV sealant for the valve cover.

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Thanks,is this the engine that you referred to as a dog?? Thought I had the better engine?? Charlie

crazy charlie said:

Thanks,is this the engine that you referred to as a dog?? Thought I had the better engine?? Charlie

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no the command single is one of the best engines ever made

CV460-26509 Year Date of Birth 2001.

StarTech said:

CV460-26509 Year Date of Birth 2001.

View attachment 66993

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Thanks for the diagram.If the cover is easy to get to ,it should be an easy job.If the valve cover is not easy to get to I will leave the job to my yearly service guy.thanks Charlie

StarTech said:

CV460-26509 Year Date of Birth 2001.

View attachment 66993

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Thanks for the diagram.If the cover is easy to get to ,it should be an easy job.If the valve cover is not easy

ILENGINE said:

no the command single is one of the best engines ever made

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Thanks,I feel much better now!!

Update!!!!!! Was about to tackle the valve cover seal and found motor to be locked up with fuel dripping onto the floor.
since I was due for bi-yearly service this coming spring so I had it done early and had the carb checked.my service guy
changed the carb and problem solved ......so far.I just got the tractor serviced last week.I would have never guessed it was the carb. I have let it sit for a few days now so gonna check it again today.Charlie