The 2008 and newer four-stroke KTMs (and some earlier SX models) use a timing chain tensioning device intended to develop its force using the engine oil pressure hydraulically. The OEM components have serious flaws (reviewed below), which can leave the timing chain in a slack condition. This can have disastrous consequences. Dirt Tricks has developed a simple, effective and fail-safe replacement. The new tensioner correctly captures the oil pressure. Additionally, it uses a positive mechanical ratcheting system which prevents it from collapsing.
If you have a ticking noise at idle, on your newer four-stroke, you need this part.
Resolves issues with a slack timing chain on the new 4-stroke motors. Uses oil pressure combined with a mechanical ratchet system to prevent collapse. KTM 350 SX/XC is now developed. New part # TC-2 for 350 motors. Installs in less than five minutes.
2005-2010 all 250 four-stroke models
2007-2010 450 SX-F and 450 SXS-F models
2008-2010 all 400, 450, 505, 530 four-stroke models
2009-2010 Husaberg 390,450 and 570
* Does not fit KTM 690
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