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FJR Motorcycle Forums
Technical & Mechanical Problems
Engine won't start - fuel pump suspected
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<blockquote data-quote="jchrisk" data-source="post: 1362863" data-attributes="member: 90588"><p>Back to it.</p><p></p><p>I tried running the engine while the gas tank was open, but no joy.</p><p></p><p>No corrosion found in any of the wire connectors, either.</p><p></p><p>I removed the air filter and used a spray bottle to squirt a small amount of gas into the intake while cranking. That worked, to a degree. I could keep the engine running indefinitely with a regular squirts of gas from the bottle - just enough to keep it running at idle. It ran a little choppy from time to time, but it ran. Curious: when I also gave it a little throttle (while maintaining the squirts from the bottle into the intake), the engine would run REALLY rough. Not enough to stall, but the engine did NOT like it at all.</p><p></p><p>At this point, I think there is a problem with the fuel pump (if for no other reason than it does NOT stop flowing fuel when the key is off). But I'm not sure the pump explains all the symptoms I'm seeing.</p><p></p><p>I'll need to take the pump out and check it, but that will keep me from running other tests for a tiem. Anyone have any other thoughts before I get started on that?</p></blockquote><p></p>
[QUOTE="jchrisk, post: 1362863, member: 90588"] Back to it. I tried running the engine while the gas tank was open, but no joy. No corrosion found in any of the wire connectors, either. I removed the air filter and used a spray bottle to squirt a small amount of gas into the intake while cranking. That worked, to a degree. I could keep the engine running indefinitely with a regular squirts of gas from the bottle - just enough to keep it running at idle. It ran a little choppy from time to time, but it ran. Curious: when I also gave it a little throttle (while maintaining the squirts from the bottle into the intake), the engine would run REALLY rough. Not enough to stall, but the engine did NOT like it at all. At this point, I think there is a problem with the fuel pump (if for no other reason than it does NOT stop flowing fuel when the key is off). But I'm not sure the pump explains all the symptoms I'm seeing. I'll need to take the pump out and check it, but that will keep me from running other tests for a tiem. Anyone have any other thoughts before I get started on that? [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
Engine won't start - fuel pump suspected
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