2007 KTM 525 exc
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Hove, UK

#164 Jan 30, 2012
Chazmanian wrote:
<quoted text>
Soccerdude...Is your 30 hour oil change interval a "Typo"? You obviously know what you are doing and have a good grasp on servicing and wrenching on your machine.....I would hope that 30 hours is a typo though. For those non-mechanics that started this thread in the beginning...The RFS motor holds 1.2 liters of oil. This is not much oil for a high performance machine that inherently operates at high temps. Change the oil in your KTM RFS bikes every 3-6 off road hours or 8-10 street hours. Insure that the valves are adjusted intially at 10-15 hours and then every 20 hours thereafter. They will take a set after the first two adjustments but tighten up and cause lowered performance and harder starting as the gap closes.
Soccerdude, Its good to see that a guy like you who understands and appreciates fine machinery got yourself a 525. Great bikes. Possibly one of the greatest dirtbikes ever produced by any country anytime. The RFS motors will go down in history right next to the legendary Honda big bores. The exception is that the KTM RFS motor is lighter and produces way more power all through the RPM Range.
The new bikes with the new XC4 motors are out now. That motor is based of last years SX motor. I'm steering clear until the bugs are worked out as I have heard the new motors do have a few little issues. Oil leaks, etc. the 2007 RFS motor was the pinnacle of perfection. I will keep my 525 for the next 8 years! My next KTM will be fuel injected and make my toast in the morning.
Crazy talk. My 525 has 25000 miles on it, ride street and dirt fast & change oil & filters every 2500 miles. Still goes like new. Ex national level crosser & trials rider

Wadsworth, OH

#165 Feb 3, 2012
marvin Fredrich wrote:
Bikes been in the shop more hours than ridden. Over heats, bolts stripping off when changing oil filters, Evaporation tank fills up and bike won't start(dealer didn't inform of emptying this each time I ride), kick start spring fell off, Liscence can rip off if in silt or clay that kicks up from tire due to void area in fender. Not to mention dealer can't get jetting right or the fuel mixture screw. I'm not pleased with this bike.
Hey guys I notice a theme here. If you want to send me or give me your vin numbers for these KTM bikes. Armed with the last six digits of your vin number I can find out if these KTM bikes ( yes even back to the early 2000's) have any outstanding warranty issues that need to be addressed. You would be really surprised (not pleasantly ) how many bikes have issues that can be addressed by KTM but the dealer network never alert the Rider or in some cases the dealer never knows. Your vin number is on the goose neck of your KTM and it starts out VBK....
[email protected]
Mad Max

Woodville, Australia

#166 Sep 22, 2012
I have ridden the WRF 450 the CRF 450 thr yzf 450 the kxf 450 also all the 2 stroke range

The best bike i have ever ridden KTM525
Mad Max

Woodville, Australia

#167 Sep 22, 2012
I rode the KTM 525 then test rode the RMZ400 enduro NO POWER


#168 Feb 14, 2013
Hello knowledge base,

I recently purchased a used 2007 525exc. All lights appear to not be working, my guess is they are disconnected to preserve cooling power. Has a baja tank, and fmf slip on.

Looking for advice on where to start when buying one of these things used, not fully confident in this dealer and am looking for something step by step to make sure this machine is not going to be a problem.
Not happy

Huntsville, AL

#169 Apr 24, 2013
Just bought a 2007 525 exc and it overheats. I also own a 2002 520 sx. It has never overheated, and I ride it hard in deep, steep sand hills in the desert in summer. I also own a crf 450 and a yz 450 (for my kids to ride). Neither of those have ever over heated. Bought my fist ktm in 1986. Never had this issue with any of them.....

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