2013 KTM 450 XC-F



I have a 2013 450 xc-f , excellent bike if you wind it..my issue is , it stalls easy when going slower...



reduce speed and use engine braking then the bike stalls


I replaced all filter, cleaned injectors and had the valve clearance checked.


I use the bike for GNCC type racing..


option 1


fit rekluse


Option 2


heavier flywheel


please assist

I chased my tail for months with same issue. Solution was to get a tachometer and set the idle at 2300rpm. Solved.

Heavier flywheel like the xc-w, the xcf has the same flywheel as the sxf.

Pull in the clutch and give it some gas?


mhug is on the right track, raise the RPM. Altho 2300 might be a bit fast

Heavier flywheel like the xc-w, the xcf has the same flywheel as the sxf.


What weight ?


8, 12 or 15 ounce ?

Depends if you still want that fast hit, I thought about the same thing myself but kept stock because I'm 50/50 moto and trails. 12 oz puts you close to xcw chug

Manual says 2100 to 2300 give or take.

The injection system will not work properly unless it is set to the spec.

Trust me, I tried everything known to man. Turns out a cheap tachometer and proper setting stopped it, period.

Option 1

I have the same bike and a 12oz FWW helped a ton and I ran that for about a year then ended up getting a Rekluse which is just awesome!! If you can't afford the Rekluse the FWW will help quit a bit and for sure you need the idle up at 2200!!

I have the same bike and a 12oz FWW helped a ton and I ran that for about a year then ended up getting a Rekluse which is just awesome!! If you can't afford the Rekluse the FWW will help quit a bit and for sure you need the idle up at 2200!!



great !!


I will get the rekluse and give you my feedback , thank you guys...

Call chip at munn racing, his prices for the rekluse are amazing. I cant say what it is though, just call him!!!

If u don't have a tachometer, do yourself a favor and get one. 2200 rpm is up there and you can't guess at it. Just trying to help you learn from my errors.

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