overheating stalling then starting back up - FE 570

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H

Hildy

Joined
May 2, 2010
Messages
21
Location
colorado
Hello guys,

I am wondering if someone can give me some advice.

Have a 2010 FE 570 with about 25 hours on it. Went out riding in the Rockies where it was a cool morning. Bike started to get very hot just going down the road at about 30 MPH. Easy riding in cool morning. Then got on the trail and it died. Noticed the fan was running all the time. Even going down the road. Was freaked out in the middle of nowhere. Waited about 30 minutes and she fired back up. Turned around and headed back to truck. Got halfway back and she died again. Waited about 20 mins and she fired up again. One again, noticed the fan kicked on right away. When I got back I checked the radiator and it didn't seem very hot. Could even take the cap off without and pressure. I washed the bike when I got home and fired it up cold and again, the fan kicked on right away........Any ideas what could be going on?

Thank you!
 
husaberg 570

the tolerance in stock fuel pump are to tight when it heats up it expands the body and windings and locks up. when it cools, you know the rest. buy an aftermarket pump and you problems will go away. ED
 
what about the fan coming on all the time now? It sounds like some sort of cooling issue. Are they both related to the fuel pump?
 
Maybe the fuel pump locking up is causing a short and messing with fan...?
 
It could be the pump yes, the -09 and -10 are known for bad pumps, KTM changed them out in -11.

But before you go through that hazzle and money; have you installed a small black KTM 10 micron inline filter?
If you have remove it. That plastic filter is very close to the engine heat and swells -> restricting the flow. As the fuel mixture is getting leaner the engine temp rises. When the filter is too warm it stops the fuel flow enough to stop the engine. Then it takes about 30 min to cool down enough to let the fuel flow again.

KTM changed them out to a grey similar looking filter to solve that problem, that filter is 15 micron. A cheap solution if you ask me so I ordered a 10 micron "golan super-mini filter".


@520pilot, you who have a new 2012 570 will most probably have that filter installed. The bad one. Remove it.
 
Last edited:
Hi, I have a 2011 Fe 570. Same problem with stalling and not starting until bike cooled down. Fuel in tank becomes hot because exaust header runs under fuel tank. It is the impeller of the fuel pump that swells slightly because of heat. It then bindes in the pump housing. CA-Cycleworks fuel pump eliminates the Problem.

I also have a fan kit and found that the fan ran continously. Turned out to be a faulty thermostat switch. If the switch is shorted out it will cause the fan to stay on. You can check the switch for continuity. It should be open when cool. Closed when hot.
 
I experienced the same thing, but mine wouldn't refire and I had to push it 6 miles. Great exercise, but not why I bought the bike. The solutions I employed were:
- Install the California CycleWorks fuel pump
- Line the bottom of the fuel tank with reflective material
- Wrap the exhaust midpipe where it passes so close to the tank.

Be advised that the tubing that came with my CA CycleWorks fuel pump was a problem. It was slightly oversized, and since it's very stiff in order to hold up against 50 psi fuel pressure, the clamp simply can't compress it enough to keep it on. So the bike stranded me AGAIN when the fuel pump blew the hose off the pump's hose barb. Solution was cheap, but had to remove the tank from the bike again.
 
Thank you everyone for your response.

I have one more question.......I think I have a couple of things that failed at the same time. I say this because the bike got hot and died (most likely a fuel pump issue) and now the fan is stuck on. Someone mentioned the thermo switch which could very well be a problem. However, when the bike was hot and died, I was able to take radiator cap off with no pressure and could touch the cap without getting burned. Because of this, it seems like I could have a water pump issue? It almost seems like it all stems from a cooling issue first. Meaning bike isn't cooling right so overheats the junk factory fuel pump causing it to die. It just seems like water wasn't being circulated at all? Impeller problems in water pump??

Thanks again.
 
Last edited:
Seems to me that with the radiator cap off and the bike running, you should see coolant circulation while looking down through the radiator cap opening. Do this after a cold start, not with the bike at operating temperature.

Somebody double-check me on this.
 

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