Lx178 Fuel Problem
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Thread: Lx178 Fuel Problem

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    Lx178 Fuel Problem

    I have a LX178 1991 tractor with a Kowasaki engine that runs beautifully. However, it is very difficult to start cold acting like it does not get enough fuel to the carburetor. If I pour gasoline in the carb it will start immediately. Anyone have suggestions why the fuel must drain back to the tank or whatever ------- . Thanks.

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    flyweight's Avatar
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    Have you checked the following:

    Fuel tank pick-up tube for obstructions.

    Fuel line shut-off valve operation.

    Fuel in-line filter.

    Fuel supply pump for proper operation.

    Fuel shut-off solenoid(under carb., if applicable). May the stuck closed.

    Click image for larger version. 

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    Michael

    2019 JD Z540R 54" cutting deck w/MulchControl™
    1984 JD 750
    1971 JD 15 Chainsaw ← hasn't run since ~1975

    Also have a bunch of other stuff.
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    " If there's no one around to smell me, do I really stink"?
    - John Wells - Brewster County, West Texas.










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    flyweight's Avatar
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    BTW, Greenx3. Welcome to GTT.

    Michael

    2019 JD Z540R 54" cutting deck w/MulchControl™
    1984 JD 750
    1971 JD 15 Chainsaw ← hasn't run since ~1975

    Also have a bunch of other stuff.
    ---------------------------------------
    " If there's no one around to smell me, do I really stink"?
    - John Wells - Brewster County, West Texas.










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    xcopterdoc's Avatar
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    Check to make sure the choke is closing. Might just be a simple cable adjustment. The fact that it will start and run rules out any major fuel issues.

    Sent from my XT1080 using Tapatalk

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    Lx 178 fuei issue

    Quote Originally Posted by xcopterdoc View Post
    Check to make sure the choke is closing. Might just be a simple cable adjustment. The fact that it will start and run rules out any major fuel issues.

    Sent from my XT1080 using Tapatalk

    I will look to make certain the choke is operating correctly. The LX 178 wants to start better when the choke is full and the idle is as low as possible. After I crank for quite awhile then it will finally catch and began running but if I increase the idle speed it will stop. Once it is running for awhile and the engine is warm there is no problem and it starts right up. Thanks.

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    xcopterdoc's Avatar
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    Don't see how that is possible. The choke and throttle are on one handle. Forward past high idle is the choke position.

    Sent from my XT1080 using Tapatalk

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    Quote Originally Posted by xcopterdoc View Post
    Don't see how that is possible. The choke and throttle are on one handle. Forward past high idle is the choke position.

    Sent from my XT1080 using Tapatalk

    Thank you everyone for your input on my LX178 fuel problem. I have resolved the issue after much trial and error and the mower is running great. I disassembled the carburetor and had it boiled out (electronically) at the local JD dealership and thoroughly cleaned all parts & inspected all ports. Since I had the tractor apart I also replaced the fuel line, cleaned gas tank, and changed fuel filter. It was a fun learning experience.
    gbnpp05 likes this.

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