Another update on my fuel pump and filter replacement....After about 35 hours of riding fuel hose between my CA-Cycleworks pump and the fuel filter ruptured. Bike stopped dead and I spent a couple hours in the woods awaiting rescue. This hose was supplied with the pump and seems to be more heavy duty than the stock hose so I used that instead of the stock hose which seems pretty flimsy. I guess the new hose not like being jammed into the gas tank. A KTM mechanic told me he had a similar problem with a KTM; he tried several different hoses and they all failed. He recommend I replace everything again with the factory pump/filter assembly that come with all the hoses attached.
Holy cow, drussel. You must be pretty fed up. I feel for you, as my 570 tends to vapor lock even though I've insulated the tank and wrapped the midpipe. Okay, you've described two problems now: A mildly persistent backfire on deceleration and a ruptured fuel line. I have some experience with the first problem on my 570, and I have an idea on the second.
I have removed all the emmision control gear from my 570 and replaced the high-packpressure factory muffler with an FMF 4.1 slip-on. Man that woke the bike up, but it did tend to backfire once in a while on abrupt deceleration. I had it at the dealer for the warranty installation of the additional fuel filter, and they saw the muffler and immediatly asked if the bike now tends to backfire. They explained that the much less restrictive aftermarket muffler will cause gasses to run through the engine at a faster rate and cause a lean mixture condition. They offered to install the "performance map" and doggone if that didn't solve the problem.
That's my experience, here are my thoughts. I don't think that there is any way that a fuel pump that is strong enough to rupture the fuel line is producing a lean mixture, so I just don't see how that musclebound fuel pump of yours can be the problem.
Concerning the fuel line, rather than an expensive return to the factory fuel pump I'm thinking that an auto or motorcycle performance shop could readily fabricate a braided stainless steel fuel line for your bike that is rupture-proof. Shouldn't cost much in comparison to a return to the factory parts. Just a thought.
I have removed all the emmision control gear from my 570 and replaced the high-packpressure factory muffler with an FMF 4.1 slip-on. Man that woke the bike up, but it did tend to backfire once in a while on abrupt deceleration. I had it at the dealer for the warranty installation of the additional fuel filter, and they saw the muffler and immediatly asked if the bike now tends to backfire. They explained that the much less restrictive aftermarket muffler will cause gasses to run through the engine at a faster rate and cause a lean mixture condition. They offered to install the "performance map" and doggone if that didn't solve the problem.
That's my experience, here are my thoughts. I don't think that there is any way that a fuel pump that is strong enough to rupture the fuel line is producing a lean mixture, so I just don't see how that musclebound fuel pump of yours can be the problem.
Concerning the fuel line, rather than an expensive return to the factory fuel pump I'm thinking that an auto or motorcycle performance shop could readily fabricate a braided stainless steel fuel line for your bike that is rupture-proof. Shouldn't cost much in comparison to a return to the factory parts. Just a thought.
Joined Jul 2012
34 Posts | 0+
Utah
I had a similar issue. The KTM/Husaberg assisted me with an earlier issue after the pipe install. Rode it and decel pop going on. I have an ECU I just installed and dialed in to fine that decel pop. I will let you know how it does. As far as cutting out, I hope I don't get that after 35 miles of riding. Will see as I get out riding more this season.
Joined Jul 2012
34 Posts | 0+
Utah
all symptoms gone. Running strong and wheels just keep on spinning. The ECU on preset map 7 runs great. I'll have to try out the other settings in the future. I know have 200 total miles.
my husa stalled with bad fuel pump at 4 h i used cycle work pump and had no problems after 1000h.
still, I always take care of turning engine off at red lights signals,might help the bike not to melt.
still, I always take care of turning engine off at red lights signals,might help the bike not to melt.
desertthumperx said:
I bought the ktm map switch with 10 positions but it comes with only 3 features. I need to get some more tuning of maping. should I get the mapping tool or go with power commander. this switch stayed on setting 2 since ever as the noticed showed 2 as agressive setting.
Joined Jul 2012
34 Posts | 0+
Utah
I think for your type, you have it set up for advance timing which is the best selection. As far as getting the software or power commander, that's a different thing. What are you trying to accomplish? I bought the vortex eco with time advance pre mapped already.
patlalonde said:
There are no power commanders (software based) for this bike. Only those piggyback units where you can push few buttons on the unit, UST mapping tool or complete standalone ECU's.
I only know two standalone ecu's that are made and work on these bikes. The vortex that comes pre mapped with few different presets that might work for someone, but gets outrageously expensive if you buy the software and hardware usb adaptor and cable to do own mappings and changes. $700 just for ecu, $250 for cable and $550 for software???
Thats $1500 ecu for simple 1-cylinder motor. For $700 you only get a box with few screw buttons to tinker with, dish another $800 and now you can finally access to it and get to use all it's features.
The other ECU what I have is half the price of full Vortex setup, comes with a solid software interface and has some nice built-in features in the ecu. Quickshifter, shift light, launch control limiter, freely adjustable rev limiter, 15x10 resolution maps that should be more than enough for fine tuning injection and ignition timing, rpm, tps or both based mapping 2D, 3D or tab + alot more.
Should be interesting to see how the new ECU works when I get the bike on dyno.
Well I cured the white gunk in tank problem, took out all the pump, filter, pressure regulator etc and then had a long a thorough blast with the power washer, no more white stuff........ Oh, I did blow warm air through the tank overnight to make sure that there were no water droplets left inside before reassembly. I now also use the fuel filler inlet filter.
Here's my story. I've tried almost everything but a new fuel pump, but my 2011 FE570S will stall (or not!) after 20-30 minutes of 2nd and 3rd gear riding on flat ground at 80 degrees F ambient temperature. I have insulated the mid-pipe, applied reflective material to the bottom of the tank, and have even installed a lower temp thermo switch so that the fan will turn on at a lower temperature and blow air across the exhaust and tank. But it'll still die and strand me. I am too old to push a bike that weighs 100 pounds more than I do, and nobody needs a dirt bike that will strand them miles from everything. I see no evidence of white goo anywhere. What is there left to do on this machine?
Joined Jul 2012
34 Posts | 0+
Utah
Hey Ruger. I know the pain. I was there like you. It looks like you got all heat reductions in place. Mine was replaced with a newer revision replacement. I can't quite remember, it might be where it was made. I will have to dig into my notes. Mine has not given me any problems so far. I have roughly 500 + miles. My problems began at less than 50 miles on the bike.
Thanks, DTX. If there is something in your notes that will help (PN, source, etc.), I hope you will share it with me. I'm pretty frustrated. I thought I was buying the best dirt bike in the world, but if I'd bought a firearm that might or might not work like this bike does, I'd destroy it rather than trade it.
Joined Jul 2012
34 Posts | 0+
Utah
Hi,
Did you purchase your bike new from a dealer, purchase date, state, and mileage? I wanted to provide suggestions depending on your answers above from my experiences.
Did you purchase your bike new from a dealer, purchase date, state, and mileage? I wanted to provide suggestions depending on your answers above from my experiences.
Yes, purchased new from a Husaberg Dealer.
Purchase date: 5 August 2011
Birmingham, Alabama
Miles: 521
Hours: 22.6
Purchase date: 5 August 2011
Birmingham, Alabama
Miles: 521
Hours: 22.6
Re: New FE 350 Fuel Pump fails after 100 miles
Just bought a new 2013 Husaberg 350. Major dissapointment in all ways. To get to the core, the bike, after 100 miles has a fuel injection pump failure, total meltdown of the system. I was 25 miles into the backcountry and the bike shut down and failed to re-start. I bought this bike from Mototech in Boise, and they are trying to troubleshoot the issue, but really do not have a solution, other than replace the pump and try again! In fact, I am not certain they have the expertise in house to troubleshoot this problem. I am very concerned, from some previous posts on KTM fuel injection pumps, that this may be a design issue regarding heat from the exhaust system in its proximity to the fuel injection pump. I am not a mechinal guy, so do not pretend to understand all the ins and outs of the fuel injection design, but everyone should beware, that this is not an isolated problem with KTM. I would appreciate any other experiences or comments from ayone else who has experienced this issue..
Just bought a new 2013 Husaberg 350. Major dissapointment in all ways. To get to the core, the bike, after 100 miles has a fuel injection pump failure, total meltdown of the system. I was 25 miles into the backcountry and the bike shut down and failed to re-start. I bought this bike from Mototech in Boise, and they are trying to troubleshoot the issue, but really do not have a solution, other than replace the pump and try again! In fact, I am not certain they have the expertise in house to troubleshoot this problem. I am very concerned, from some previous posts on KTM fuel injection pumps, that this may be a design issue regarding heat from the exhaust system in its proximity to the fuel injection pump. I am not a mechinal guy, so do not pretend to understand all the ins and outs of the fuel injection design, but everyone should beware, that this is not an isolated problem with KTM. I would appreciate any other experiences or comments from ayone else who has experienced this issue..
Sky ranger, I was riding a 13 ktm freeride very slowly for an extended period when the fuel pump tripped a fuse. It kept blowing fuses. After letting the bike sit for almost an hour, the pump decided to work again with no further issues. Curious about how you faired.
Joined Jul 2012
34 Posts | 0+
Utah
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