X300 w/Kawasaki starting problem
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Thread: X300 w/Kawasaki starting problem

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    X300 w/Kawasaki starting problem

    My x300 has a Kawasaki iTorque twin that will not start unless the choke is full on. Once started, no choke is required and it runs just fine. I can run this thing for a half hour, shut it of and then immediately try to restart it and it won't start unless I give it full choke. Once started, it's fine again.

    I cleaned the carburetor thoroughly, and checked the gaskets. I made sure it is all buttoned up nice and mounted on the engine tight with no air or liquid leaks.

    I have cleaned dozens of carburetors in my day, but this one is the first I have seen that has a solenoid under the bowl. What is that solenoid for and can it be causing the problem? I guess another question is WHEN is the solenoid supposed to be activated and why?

    This is more of a nuisance problem because it works great after starting, I just don't like having to use 2 hands to get it started.

    Any thoughts on what might be happening?

    Thanks!

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    the solenoid is energized when the key is turned on. When not energized it closed off the fuel line and will not allow fuel into the bowl. Energised it allows the float to open or close it off. At least that's how it works on my old stx-38

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    Keeper of the GTT Cookies dieselshadow's Avatar
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    Most solenoids on the bottom of the fuel bowl shut off fuel flow into the engine from the main jet. It doesn't restrict flow into the bowl. They are commonly referred to as "anti-backfire" solenoids. When de-energized at shut down, fuel isn't supposed to go into the engine while it's spinning down only to be ignited inside the muffler. Mixtures are on the lean side with today's engines already, so without these solenoids, backfires are very common and hard to prevent.
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    sounds like I had that figured out ALL WRONG....

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    Keeper of the GTT Cookies dieselshadow's Avatar
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    Quote Originally Posted by gimmo View Post
    sounds like I had that figured out ALL WRONG....
    I'm wrong all the time.

    Once, I had actually agreed with Gizmo!
    DRobinson likes this.
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    Quote Originally Posted by dieselshadow View Post
    Most solenoids on the bottom of the fuel bowl shut off fuel flow into the engine from the main jet. It doesn't restrict flow into the bowl. They are commonly referred to as "anti-backfire" solenoids. When de-energized at shut down, fuel isn't supposed to go into the engine while it's spinning down only to be ignited inside the muffler. Mixtures are on the lean side with today's engines already, so without these solenoids, backfires are very common and hard to prevent.
    Thanks! Any thoughts on why I need to have a full choke to start it even when the engine is hot?

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    felixm22's Avatar
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    Quote Originally Posted by PickyBiker View Post
    Thanks! Any thoughts on why I need to have a full choke to start it even when the engine is hot?
    It could be that the carb is a little lean and needs a little extra fuel to get going. I know on my 318 some times I need to choke it when it is warm.


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