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Fuel Fuel Delivery


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August 21st, 2014, 09:07 AM   #1
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I Ride: Husaberg FE570S and Buell S3
Died at 35 mph, won't restart

Need a little help.
I've got a 2011 FE570S. I've solved the hot fuel problem (wrapped the exhaust near the fuel tank and installed reflective material to the underside of the tank), replaced the factory fuel pump with the improved CA Cycleworks pump, have the FMF Factory 4.1 silencer, have removed all the smog gear, and the dealer flashed the "performance" map. The bike runs like a dream.

But yesterday while running down a flat dirt road at 35 mph in 5th gear (loafing along, really), the motor quit and would not restart. I pushed it home 4 miles. Today it won't start, either. All fuses okay. I doubt that it's the fuel pump because the CA Cycleworks pump has only 6 hours on it, and I can hear it running when I turn the key. FI light stays illuminated for 1 second after turning the key. Fuel pump shuts off just after the FI light turns off.

What have I got? I love the bike, but it's stranded me repeatedly. I thought I had the bugs worked out with the fuel pump, tank, and exhaust mods, but here we go again. Worse, I have only basic tools with me and am 2000 miles from my shop. I don't even have a multimeter at my disposal.

Can somebody please help me diagnose this problem? The nearest Husaberg/KTM dealer is 200 miles away.
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August 22nd, 2014, 08:41 AM   #2
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I Ride: FE390, FS570, FE 570, Malcolm Smith's 1967 Baja 1000 winning Husky 360,many other brands
1. Make sure the battery cables are tight - even a little bit loose seems to cause problems. 2. Check the wires under the gas tank to see if any of them have lost their insulation and are grounding. When removing and replacing the tank, it is very easy to put a wire in a slightly wrong place. 3. Let us know what fixes the problem! Best Wishes!
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August 22nd, 2014, 11:20 AM   #3
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Thanks, Jroble.
Is the one second illumination of the FI light normal, do you know?
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August 22nd, 2014, 04:10 PM   #4
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Yes mate the one second light illumination is normal.
I was tooling along at the same speed once and all of a sudden, mooooooooort bang cough moooooooooorrrt, the flywheel woodruff key had sheared. It still gave me spark but out of time.

Check for spark first.

If you have spark, check for injector firing. You need to unplug the TPS on the side of the throttlebody, ( if the ecu senses the tps is open while cranking then it will not fire the injector) crank the motor with the throttle wide open and you can see the injector pulsing fuel into the inlet tract.

Last edited by berglsmerg; August 22nd, 2014 at 04:12 PM. Reason: F&@$ing auto correct
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August 27th, 2014, 02:24 AM   #5
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Thanks very much for the advice from Oz! I'll check it out.
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September 12th, 2014, 04:36 PM   #6
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Last edited by stoppiecycle; September 12th, 2014 at 04:40 PM.
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September 12th, 2014, 04:39 PM   #7
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2011 Husaberg FS 570

Hi new here looking to buy a 2011 Husaberg FS 570
the problem described in this thread is it common.

What are your thoughts about this bike- its new non current machine.
Have a wr but looking for a new ride thanks very much

Last edited by stoppiecycle; September 12th, 2014 at 04:42 PM.
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September 14th, 2014, 08:53 AM   #8
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I had the same problem a while back on my '09 FE570. My battery terminal rubbed against a wire and eventually it rubbed through. It died just after landing a jump. It hit the ground and died immediately. It cranked, but would not start. It could be something very simple.

Rick
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September 15th, 2014, 02:21 AM   #9
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I have had similar issues, I recently bought an 09 fe450, and while cruising along about 90km/h, the bike started to splutter then it died, it started again and I rode home with the bike spluttering and me feeling rather disappointed with my purchase. I went through the bike and found a few corroded plugs and a bad earth....so I cleaned, then bbrrrappp, all sweet. have a look at the plugs going to the voltage regulator, they were the ones that gave me curry
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July 23rd, 2015, 10:33 AM   #10
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I finally figured it out. I had installed a California Cycleworks fuel pump because the factory fuel pump was problematic. The hose that came with the California Cycleworks fuel pump was the problem. It comes with two hoses, actually. One is very short and for a different model (apparently), and the other is the correct length. It's also a slightly different diameter, and it's something that you can't readily see. Its ID is a tiny bit larger, which makes assembly real handy. It also makes the unit prone to blowing the hose off the fuel pump nipple, which isn't handy.

Here's the deal. The high pressure fuel line that is appropriate for use on these fuel pumps (don't bother looking an auto parts store, and it won't be hanging on a peg in your motorcycle shop either) is really quite stiff. No matter how tightly I tightened the clamp (special clamps for EFI, btw), the fuel pump blew the hose off the nipple. Funny thing: the too-short hose has a slightly smaller ID than the longer hose. I bought 5/16" 220 PSI fuel line, and it fits tighter on the nipple than the longer hose that came with the California Cycleworks fuel pump. It oughta work!

Now, here's my problem. I recall reading somewhere that there is a trick/procedure for priming the fuel pump. And, of course, I can't remember what it is. Can somebody remind me, please?
Thanks from tourist
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