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Kohler 5ECD generator, exhaust smell gasoline and slight sheen on the water when running generator

yuriddsyuridds Member Posts: 6 ✭
edited April 2016 in Generator Discussions
" A couple questions.  First, if you get close to the exhaust, can you smell gasoline?  Not exhaust, but gasoline like when you are filling up your car.  Second, is it running louder than normal?  If you have these symptoms I may be able to help"

I have exactly this problem. What should be done?
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    Black_DiamondBlack_Diamond Member Posts: 5,439 ✭✭✭✭✭
    Always start with new plugs. These things eat them. It will run on one cylinder until you load it, then it will stall. 

    Past owner of a 2003 342FV
    PC BYC, Holland, MI
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    Michael TMichael T Member Posts: 7,227 ✭✭✭✭✭
    ...no smell of gas , no sheen on water ....baaaaaad!
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    yuriddsyuridds Member Posts: 6 ✭
    edited May 2016
    Black_Diamond said:
    Always start with new plugs. These things eat them. It will run on one cylinder until you load it, then it will stall. 
    I think both cylinders are working. It's probably something else.
    Post edited by yuridds on
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    yuriddsyuridds Member Posts: 6 ✭
    I have tried to replace O2 sensor with alternative(Bosch). But same problem.
    Is it important to have OEM Kohler O2 sensor?
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    Black_DiamondBlack_Diamond Member Posts: 5,439 ✭✭✭✭✭
    Could be a stuck injector. 

    Past owner of a 2003 342FV
    PC BYC, Holland, MI
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    yuriddsyuridds Member Posts: 6 ✭
    Just find out, one cylinder is not firing. Tried to replace spark plugs,  same result. 
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    MarkBMarkB Member Posts: 3,962 ✭✭✭✭✭

    Fuel + oxygen + spark = ignition.

    Starting with spark - you replaced spark plug, but is it getting a zap of electricity?

    Fuel - injectors blocked?

    oxygen - valves okay/lifting?

    Boat Name: King Kong

    "Boat + Water = Fun"

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    Dream_InnDream_Inn Member, Moderator Posts: 7,558 mod
    Ok, my bets are on the coil.  You can swap the coils and see if that cylinder fires.  Easy to replace if that is the problem  I had the same issue last year.

    Dream 'Inn III -- 2008 400 Express

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    yuriddsyuridds Member Posts: 6 ✭
    edited May 2016
    I have replaced oxygen sensor, no changes. Bad cylinder spark plug is wet from unburned fuel( when I pulled it to check), so there is a fuel coming in. I will definitely try to swap coils tomorrow. Please, let me know how to check correctly if there is actual spark from the plug.
    Post edited by yuridds on
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    Black_DiamondBlack_Diamond Member Posts: 5,439 ✭✭✭✭✭
    An inductive pick up timing light works. Or just put in a spark plug and ground it to the block and crank it. You can see if it sparks. 

    Past owner of a 2003 342FV
    PC BYC, Holland, MI
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    yuriddsyuridds Member Posts: 6 ✭
    Dream_Inn said:
    Ok, my bets are on the coil.  You can swap the coils and see if that cylinder fires.  Easy to replace if that is the problem  I had the same issue last year.
    Thank you Dream Inn. Problem solved! It was broken coil. You can't believe how much time I have spend trying to figure it out.
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    rasburyrasbury Member Posts: 8,238 ✭✭✭✭✭
    will sure keep this in mind! Great catch Dream!
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    Dream_InnDream_Inn Member, Moderator Posts: 7,558 mod

    Thanks Ras!

    Believe me, it was a lesson learned on my end as well.  I actually carry a spare coil because I've heard when one goes, the other has a good possibility of going as well. Glad it worked out for you!

    Dream 'Inn III -- 2008 400 Express

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