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Discussion Starter · #1 ·
I am new to any forum. How do I view the responses I hope to get from everyone?
I have a 650 that after running for several hours begins cutting out. Usually at 50 plus miles or so. It almost seems like it isnt getting enough gas or enough spark.
Runs great until then then and then I limp home. I am able to shut it off wait a few minutes then turn it back on and get a few miles at a time before it starts sputtering again.
 

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When it happens again loosen the fuel cap.
 

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Sounds like your fuel pump is on its way out. Check your fuel pressure, you can buy replacement fuel pump right at local parts store I replaced mine about a year ago and it's still going strong. Make sure you leave fuel pressure gauge in line while you ride so you can see what your fuel pressure is doing when it's starts to act up. You should maintain 51 psi of pressure
 

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Sounds like your fuel pump is on its way out. Check your fuel pressure, you can buy replacement fuel pump right at local parts store I replaced mine about a year ago and it's still going strong. Make sure you leave fuel pressure gauge in line while you ride so you can see what your fuel pressure is doing when it's starts to act up. You should maintain 51 psi of pressure
x2, had similiar scenerio and it was fuel pump. I bought an inline fuel gauge and it was around 21. If you don't have fuel gauge, i bought mine at JEGs, 555-41013 and bought parts to install at advance auto. 555+41013 - JEGS High Performance
 

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If you have a fuel filter on the line(2006 and 2007 have one but not sure 2008) I would start with that plus new spark plugs and if it does the same change your fuel pump which is your probable problem.
 

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Discussion Starter · #6 ·
Thanks....

Thanks for the info. I have tried loosening the gas cover, I have replaced the fuel filter and checked the plugs.....I guess the next step is the PSI on the gas.....Appreciate all the suggestions....
 

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Can pretty much guarantee its your fuel pump. Pressure gauge will tell the tale very quickly though. My first pump started acting up around 6500 Kms. It was very rare though that it would cause trouble. Only on real hot days. At 12500 Kms it was getting worse. 17,200 on the bike now and the pump is still putting out good pressure.
 

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Places like autozone rent fuel pressure gauge for free. A few zip ties and an extra length of tubing and you can even ride with it if you see good pressure at idle. Mine was good at idle but after a little riding pressure would drop and I would get a real bad bog etc. replace pump with one drone auto parts store and it's worked great since.
 

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Replace the fuel pump.
 
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