XB9s Fuel pump

[herwawan]

Hey, I'm joining the conversation as mine is now whining pretty bad (on a XB12Scg). As for the part, thanks for the link Silverrider. There's kind of a ton of them, I'll go for this one if you guys confirm I don't need anything else (+ the fuel level sensor lunatic fringe mentioned above)!

 

[Silverrider]

Hey, I'm joining the conversation as mine is now whining pretty bad (on a XB12Scg). As for the part, thanks for the link Silverrider. There's kind of a ton of them, I'll go for this one if you guys confirm I don't need anything else (+ the fuel level sensor lunatic fringe mentioned above)!

correct what year ?

 

[herwawan]

2005!

I am wondering if that sad pump is the reason why my XB doesn't start so well lately. It will try (new battery and fresh maintenance so it excludes some other parts), but nothing will pop before few secondes sometimes.

 

[Silverrider]

2005!

I am wondering if that sad pump is the reason why my XB doesn't start so well lately. It will try (new battery and fresh maintenance so it excludes some other parts), but nothing will pop before few secondes sometimes.

What is the CCA on the batt should be 220cca for the high comp V twins. Your start button could have corrosion on it .Check all your grounds, my 2010 did the same but it always started.

 

[herwawan]

What is the CCA on the batt should be 220cca for the high comp V twins. Your start button could have corrosion on it .

220cca, took a Deka one on Lunatic's advice. It's hard to explain with my English (trying my best here): basically the starter goes full on, no worries on that side, the engine just doesn't "start" right away.

The corrosion you're mentioning, what could be the symptom related?

 

[Silverrider]

220cca, took a Deka one on Lunatic's advice. It's hard to explain with my English (trying my best here): basically the starter goes full on, no worries on that side, the engine just doesn't "start" right away.

The corrosion you're mentioning, what could be the symptom related?

I pulled this over from Cooters thread,

It sounds like you are describing slow cranking not slow "starting". Yes?

If so, it's pretty common for a high compression V-twin like a Buell. Thats why they recommend a 220CCA battery and not the cheaper 200CCA versions.

You can use a trickle charger (and you should), but put it on a timer so it shuts off for about half a day everyday and it shouldn't overcharge and fry the battery. Floating ground chargers (especially cheap ones) can over heat and dry out a battery.

If the battery is a cheap one or it's just getting old, try the Lunaticfringe Invented Pressing Starter (L.I.P.S.), Buell Operation Over Battery System (B.O.O.B.S.):

Turn on the ignition and run switch, press the starter button for a fraction of a second and immediately release it and press it again and hold it until is starts. This will let the piston butt up against the compression in the cylinder then bounce back and you can use that momentum to now get it over TDC.

 

[herwawan]

I pulled this over from Cooters thread,

It sounds like you are describing slow cranking not slow "starting". Yes?

If so, it's pretty common for a high compression V-twin like a Buell. Thats why they recommend a 220CCA battery and not the cheaper 200CCA versions.

You can use a trickle charger (and you should), but put it on a timer so it shuts off for about half a day everyday and it shouldn't overcharge and fry the battery. Floating ground chargers (especially cheap ones) can over heat and dry out a battery.

If the battery is a cheap one or it's just getting old, try the Lunaticfringe Invented Pressing Starter (L.I.P.S.), Buell Operation Over Battery System (B.O.O.B.S.):

Turn on the ignition and run switch, press the starter button for a fraction of a second and immediately release it and press it again and hold it until is starts. This will let the piston butt up against the compression in the cylinder then bounce back and you can use that momentum to now get it over TDC.

Haha! Yes, I saw this one! I even tried earlier but it didn't change the situation - that's why I was wondering if the fuel pump could be related. The battery is brand new (+ I have a tender that I plug once a week, but it's always showing 100% charged so far) and it's really not slow cranking: I don't have this feeling of start-pause-crank. The starter just goes full speed alone for a bit until eventually the engine starts (and without the slow crank).

It doesn't do it all the time though. Sometimes it starts literally right away, and sometimes it does it. Confusing, ha.

 

[arikam]

After working on it all day, washing it, waxing it, adjusting everything, showing it some love, and riding it, the fuel pump became more quiet and sounded like a normal fuel pump. Very full tank of gas. This would be the worst time for it to fail. But it runs fine. I had forgotten how much torque this bike has. Had to hang on for my life a few times. I still need to check my oil levels. Gotta YouTube it because i forgot how to. Its been about 3 years since I foolishly got rid of the xb12r firebolt. This 9 seems like it's gonna be fun.

 

[herwawan]

After working on it all day, washing it, waxing it, adjusting everything, showing it some love, and riding it, the fuel pump became more quiet and sounded like a normal fuel pump. Very full tank of gas. This would be the worst time for it to fail. But it runs fine. I had forgotten how much torque this bike has. Had to hang on for my life a few times. I still need to check my oil levels. Gotta YouTube it because i forgot how to. Its been about 3 years since I foolishly got rid of the xb12r firebolt. This 9 seems like it's gonna be fun.

Haha same, my tank is full! I just ordered the part tho, better safe than sorry.

 

[arikam]

I know i have a bad rear brake sensor. Ohm'ed it out at the sensor. Last buell had a bad one also. Most be a poor design. Gotta order one of those. I watched the oil check video. Seems like you can't check to primary. Just drain it, and replace it with 1 quart. Engine oil is easy to check. There is a dip stick. I should have remembered that. Let me know how sucky or cooperative the fuel pump swap goes.

 

[herwawan]

I know i have a bad rear brake sensor. Ohm'ed it out at the sensor. Last buell had a bad one also. Most be a poor design. Gotta order one of those. I watched the oil check video. Seems like you can't check to primary. Just drain it, and replace it with 1 quart. Engine oil is easy to check. There is a dip stick. I should have remembered that. Let me know how sucky or cooperative the fuel pump swap goes.

Will do! I just need to figure out the Cooter "A-frame ladder" system to lift the rear - a picture maybe?

 

[Cooter]

Instead of the youtube thing, I'd highly recommend the free .pdf Buell service manual download from Buellmods.com or Buelltooth.com.
Good, clear pictures and the correct factory procedure every time. No unqualified hack trying for internet know-it-all fame.

You can check primary oil level by removing the 3 bolt clutch keyhole cover. The fluid should be at the bottom of the opening. It's rare that it would be low, unless the primary gasket is leaking a LOT, and you would know that:black_eyed: It won't 'use' oil like a motor does.

Just run the rear of the bike under the ladder "bad-luck style"haha all you're doing is supporting the 150 or so lbs of the rear of the bike so the swing arm can drop a bit.

 

[user_deleted]

yes max that is the pump/filter/regulator kit i use. see link below. what you described yet another symptom of an aging/failing pump which is inconsistent starting cold or hot. in other words if your ignition system including plugs is in good order and you've recently noticed that you're cranking an inordinate amount of time to start the motor it's a failing pump.

tony: see link below as well. doubtful the pump will leave you sitting high and dry somewhere but i strongly recommend that at the first signs of hard starting and "lazy" throttle response replace it.

https://www.ebay.com/itm/New-Buell-...wNkJZ8Mav:sc:USPSPriority!17540!US!-1&vxp=mtr

 

[arikam]

No oil leaks, so that fluid is probably the correct level. Swing arm oil is good. I'll keep an eye on the fuel pump issue. Thanks for the help.