09 FE570 Cutting Out at High RPM

Possibly. Sounds like the last owner was really paranoid. I think I would scrap it all but the sock.

JakeB said:

Thanks!

One more question, the white inline filter that's inside the tank, is it from the factory stock or did the previous owner install this?

JakeB

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The filter inside the tank is stock, and IMHO is all you need.

I change out my in tank filter at 100 hours and while slightly grey, it was not dirty by any means.

Your experience with the inline filter before the injector is not surprising as the regulator is inside the tank after the in tank filter.

Hi,

Been surfing this excellent forum this year but signed up now to share some info about this inline filter.

I bought a FE570 -12 and they have that filter factory installed. I had some trouble with performance one weekend after I used some bad fuel (not clean enough). What happened was that the bike was all right at start but when it got warm the performance slowly disappeared. After maybe 20 min it started to backfire and after 30 min it lost all power and spluttered. It also died a few times and I had to wait until it cooled down, then it started just fine again.
After telling Ljunggrensmotor (in sweden where I bough my bike) they told me to take the inline filter away. I did that and the bike woke up again!
What they told me is that they have realised that the filter swells when it gets warm. As my filter already was a little bit dirty it didnt let enough fuel through when it got warm. That explained the decline in performance.. When the filter got warmer (close to the engine) it slowly swelled until the engine didnt get enough fuel and died.

I'm not saying that you all should take away that filter as it do have a purpose, but its good to know what to check if you have trouble as it can be that filter. It is very fine (15-20 microns?) and is affected by heat.

Question about the in-tank filter: How do you get to it to change it?

To the OP:

Which pre-injector inline filter do you have? The old version was black and too restrictive, the new one is grey and works fine according to the factory mechanics. It's less than $7, 78141013190.

They look like this:

Ruger said:

Question about the in-tank filter: How do you get to it to change it?

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You can see it in the pic below, it sits in the inlet to the throttle body. Remove the stock Oetiker clamp there, full the hose off and you will have access. Replace the clamp with a resuable FI clamp, I think the inline filter comes with one.