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Fuel pump going out?

H

Husa570

Joined May 2013
17 Posts | 0+
gresham
Hi, I have a 2011 FS 570 and it has never started easy. usually (3-4) 5 second holds to get it going. Well now along side of the hard starts its also not wanting to re start after a 20+ minute ride. I commute with this thing and the first year it had no issues starting back up after the 20 minute commute, now it coughs starts, runs for 2 seconds then falls on its face and dies. I then have to wait 5-15 minutes to get it to re start.


Its completely stock, I just ripped out the smog stuff in an attempt to see if that was causing the problem.


Any help would be great! The bike has about 2900 miles on it. I've had it for about 11 months
 
I believe your fuel pump is your issue, after MUCH research I will give you my take on all the 70 degree fuel pump problems. First of all I believe most of the problems are not filter related, I believe they are directly related to clearance issues inside the pump however this is only my best guess... Now for the good part I have successfully cured a pump before it completely stopped working! I can only tell you what worked for me the one time I had to try it. 1. Remove pump from tank and drain all fuel 2.check to see if pump gets hot in your hand while it runs (if it does it's going out, the faster it gets hot the worse your problem. The way I checked mine was to hook it up to a 1500ma 12v wall charger, you could just hook it directly to your battery. The pump should not get too hot to hold, should not drop rpm's or stall if disconnected and reconnected, if it is working properly, at most it should get slightly warm. Here is how I fixed mine: follow steps1&2 then 3.drop a few drops of WD40 in each end of pump 4.connect to 12v, occasionally switch + ~ in order to run pump forward and reverse. Repeat this process while holding pump submerged in water. 5. When pump runs with out heating up, slowing or stalling you have been successful. This process removed the friction causing obstuction in my pump. Hopefully this will work for some of you saving you some $$$$ as well as getting you back on the trail. One more thing, I believe when the pump starts to go out it reduces the amount of fuel going to the engine WHICH THE FI COMPUTER READS AS A LEAN CONDITION AND COMPENSATES FOR !!! Resulting in engine overheating , sort of a visious cycle (no pun intended) anyway that's my take on things, my bike is running with NO problems.
 
thanks for taking time to explain that! Im going to see if i can get a replacement pump for free or discounted. If not i know what ill be doing this weekend :)
 
Ended up just buying the Ca Cycleworks pump. I dont want to be down 2+ weeks waiting for a pump to maybe show up.
 
Im going to try out your fix, just need the pump in now as the weather seems to be amazing ;p
 
just had a fuel pump issue... i believe because i had low fuel that the pump had somehow lost its prime, i took it out and submerged it in fuel and tried it with normal and reversed polarity. it just blew out a couple of small air bubbles at first, but after doing this a few times it began working again! not sure if it was debris related or had lost its prime. when i removed the pump it had also come out of its housing, not sure how but this may have caused it to suck air hence lose its prime..
 
Weird, I ended up replacing it with the CA cycle works pump, first time i got it back together it wouldnt prime. The ground was just slightly up off the terminal when i put it back in. so i got it back in there and zip tied it pretty decent. Now it primes and wont start lol....

About to pick up walking. My legs have never left me stranded before....
 
Well after about 20+ tries of getting the system to prime and killing off my battery (ended up buying a 5Ah TurnTech <3) It works. Its all done and I didn't have to buy anything different then what came with the kit. If anyone runs into this and wants any insight/having trouble figuring something up P/M me!

And the 5Ah TurnTech starts my bike better than the Yuasa battery ever did.
 
CA Cycleworks is currently out of stock on the Husaberg fuel pump.
Terrific.

Does anybody have a phone number for Husaberg USA Customer Service?
 
http://www.ktm-parts.com/search.html?q= ... rks&page=1

There are a few places that sell these pumps.

Otherwise they told me to take my bike to one of the Husaberg dealers (only one left by me) and have him diagnose its the fuel pump. Once he does that then we need to get in contact with Husaberg and wait for a pump IF they give me one out of the six month warranty. I opted to save myself the time and go with the above pump.
 
remove fuel tank, fuel pump is screwed into the the rear, lowest point of the tank. Yes, it's in the tank.
 
fe390vt, thanks for the hints!
Some have mentioned priming the new fuel pump. Is there a trick to that? I'd think that gravity would prime the pump as long as there was enough fuel in the tank.
 
Just took me a lot of 5 second bursts of the start button. I tried for the longest time just turning the key but it didn't seem to do anything more then make the pump prime noise. I just used the stuff that came with the kit too, didn't buy anything special. And above is correct, unscrew the FPR because the stock fuel line is bound up inside the tank.

On a side note DO NOT UNDER ANY CIRCUMSTANCE LET THE TOP OF THE FUEL PUMP HOUSING GO INSIDE THE TANK!Ask me how i know? I ended up making a tool to reach in there to grab it out and keep it perfectly straight to get it out....

To pop the stock fuel pump filter off there is a small black ring, i used a pair of needle nose pliers to pull it off. take your time! you can re-use this if you don't go crazy on it. Second alternative is to just put the stock filter back on if its in good condition (Mine was still completely white with nothing on it) no discoloration or anything, without the black retaining ring. The stock fuel pump housing actually holds the filter in place and it presses onto the pump pretty decent. This is what i did and it still works....Others have had horror stories so try at your own risk.

Take your time too. Don't rush anything. Do not apply too much pressure to the top of the fuel pump either, the barbed nipple can break, again ask me how i know.....What i did was took the pink hose that came with it, cut it down to about the size i needed which will become apparent once you pull the fuel pump hose off of the inline fuel filter (If you have one) and the top of the old pump. Measure it out and remember this hose doesn't bend like the old stock hose. You need to factor that into it being smashed into the small tank. Also take the pink hose and work the holes. I took a cleaned off allen that was slightly larger then the I.D. of the hose and worked it around in there. That way you don't have to use very much force to pop it on.

With everything back together you might have noticed the connectors for power/ground are much shorter then stock. Also this might be just my bike but the insulation some how worked its way up the wire leaving everything exposed. (Put it back together and it threw a code that there was a short) I took everything back apart...dumb me for not testing it before hand and found this problem. I simply moved the insulation back down over the whole connector on both the power and the ground side; Sure enough makes the prime noise.

I'm at work at this is kinda just thrown together. If you have any other questions let me know. These were the few things i ran into that i didn't see very much info on. I did not use any special means of holding the stock housing to the pump. There were some pretty ingenious ways of doing it but the exact fit housing into the tank didn't allow for me to try a few of them. It took quite a bit of force to pull it apart anyway so i didn't see the point (street bike)

If this is an off-road bike and you are going to be launching it up stuff and doing amazing off-road things you might want to take a little extra time to get it to stay together.

Good luck!
 
Thank you, Husa570. This is invaluable information!
My Ca Cycleworks fuel pump is backordered, but should be available by 30 June.
Did you to any of the things suggested to resurrect a factory fuel pump?
- Squirt in a little WD40 in both the inlet and outlet
- Submerge in water
- Run forwards and backwards until the obstructions are cleared and it runs cool.
 
I have not got to that task yet, i seem to like to let alot of projects build up and then force myself to do them all at once. Now that i have those out of the way i can start messing with the pump.Im guessing there is some build up with the factory lube that goes into these pumps and helps gunk them up. So running them forward and reverse would help break that lube up and help clearance out whatever is binding up inside. The WD-40 one sounds good too. As it would help break down and wash out whatever has gunked up inside the pump too.

I will say this though. My pump finally let out at 60+ hours close to 3000 miles. So keep this in mind when you are out there...if yours starts to act funny or has an issue restarting fix it now instead of when it leaves you stranded out in the middle of nowhere...Mine actually got to the point where it wouldnt start for 30+ minutes.... Thats alot of time to think about what you should have done lol.
 
Heck, mine acts like that (Worse, actually. It won't restart until it's stone cold.), and it's only got 520 miles and 24 hours.
 
Well, I think I'm pretty satisfied with the CA Cycleworks fuel pump. I have wrung the bike out beyond the point where it would have quit with the factory fuel pump, and it showed absolutely no sign of reluctance to take me home. I also installed an EarthX lithium-iron battery.
 

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