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Automatic Timing Chain Tensioner - KTM / Husaberg

If you have a "ticking" noise at idle on your newer KTM four-stroke, you need this Dirt Tricks Timing Chain Tensioner for RC4, XC4, and RF4 motors.  If you are not sure which motor your bike has, look at your clutch cover for the answer. 

The Dirt Tricks Timing Chain Tensioner uses oil pressure combined with a mechanical ratchet system to prevent collapse and avoid issues caused by a slack timing chain on the new 4-stroke motors. 

 
The 2008 and newer 4-stroke KTMs (and some earlier SX models) use a timing chain tensioner intended to develop its force using the engine oil pressure. The OEM tensioner has serious flaws which can leave the timing chain in a slack condition, possibly causing serious engine damage.

Dirt Tricks has developed a simple, effective and failsafe replacement. The Dirt Tricks timing chain tensioner correctly captures the oil pressure, and then uses a positive mechanical ratcheting system to prevent it from collapsing. The replacement unit will work on all newer four-strokes in 250, 400, 450, 505, 530 models using the RC4, XC4, or RF4 motor (not for the RFS motors). Read the Installation
Installation PDF

Husaberg installation requires special instruction. (Tensioner must be installed collapsed. This requires laying your bike on its side to install.)

   

    Availability Guide: If you order an item that is not in stock, we will not charge your card until the order is ready to ship.

      = Normally ships the same business day     = Ships in 1 to 2 business days    = Backordered from supplier
  Dirt Tricks Timing Chain Tensioner - KTM/Husqvarna/Husaberg  Cost  Add To Cart 
KTM/Husaberg Automatic Timing Chain Tensioner
Fits KTM SX-F/XCR 250 4-stroke models 2005-12, SX-F/SXS-F 450 2007-11, and 400/450/505/530 4-stroke models 2008-12
Fits Husaberg 390/450/570 models 2009-12
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***WILL NOT FIT these bikes:  KTM SX-F 450 Factory Replica Edition 2012,
SX-F 250/450 2013-15, EXC 500, XC-W 450/500 2012-15

Simple replacement for OEM unit, quiets engine noise caused by loose timing chain. (Your clutch cover has the engine type molded into it.)
DT-TCTKTM Installation PDF

$79.99
MSRP $89.99
 
KTM Automatic Timing Chain Tensioner
Fits all KTM 350 4-stroke models, 250 SX-F 2013-17, 250 XC-F/XCF-W 2014-17
Fits Husqvarna FC/FE 250/FE 350 2014-17, FC 350/FE350S 2015-17

Simple replacement for OEM unit, quiets engine noise caused by loose timing chain.
DT-TCT2KTM
Installation PDF

$79.99
MSRP $89.99
 

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KTM/Husaberg Timing Chain Tensioner - Larger Images

KTM/Husaberg Timing Chain Tensioner
 
Assembly order. Spring installment.

 

 

As the spring is inserted and you compress it, you can feel and hear the clicks as the piston ratchets into position. There are a total of 11 ratchet positions at 1mm spacing. If you extend to more than 9 clicks, you probably need to replace your timing chain.