Apr 23, 2008 · I had 2002 KTM 400 SX and loved it for both MX and trails, for that year there isn't much difference between the SX and EXC. Both were 6spd but the ratios were different and …

Sep 28, 2009 · Seems like my '09 KTM 400 XCW just does not rev out as it should. Has a JD jet kit and FMF 4.1 exhaust. Under load or on the stand, the bike starts blubbering above 3/4 …

Apr 5, 2014 · The 400 is kinda the predecessor to the 350. It spools up quickly, and has some spunk. What it lacks is the low grunt of the 520/525 RFS, but the 400 can still be lugged …

Jul 25, 2005 · The 400 in the RFS form is awesome, easy to maintain and has a gearbox to die for. Forget the van just go out for a ride, if theres an area you want to explore 30 miles from …

Jul 19, 2015 · The KTM LC4 400 is probably the most overengineered bike in its class. Everything was designed to withstand the weight and power of the 640. If not tuned to the max (or …

Jul 25, 2013 · Reals ned Your help here, been riding my ktm 400 Exc from 2002 for a couple og years now. And i've never had any real problems. But now I'm having a problem with my …

Oct 28, 2003 · KTM 400 EXC compression question. Discussion in 'Thumpers' started by Rapid Dog, Jun 20, 2013. Rapid Dog ...

May 1, 2013 · Took my old 2004 400EXC to about 400 hours / 10,000 miles on the original crank, clutch & piston. Very reliable, easy to service, can do the valves without a feeler gauge and …

Jan 18, 2015 · With the engine running, is the 400 EXC a good bike for commuting or are they aimed at short dirt track blasts like the 2 stroke bikes? Wondering if I could use this bike for …

Feb 15, 2007 · Sounds to me like you are talking about the 453. This is done by taking any 400 RFS and matching a 525 top end to the 400 bottom end. The combination results in the bike …