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Crf450r auto cam chain adjustment..?

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Ok so I recently got my valves all back in spec on my crf450r. I took the whole cam chain tensioner out to inspect it. It's still in working order. I will get a manual cam chain tensioner one of these days but will someone tell me the correct way to tension the can chain? What torque do I put on the middle bolt? I can't find any help anywhere and I don't want to do it wrong and have to do a top end. I haven't had any problems at all with this bike. It is a 2006 model. Thanks. Keep in mind..oem auto tensioner. I just wanna know if there is a torque to put the middle bolt at on the tensioner..because it doesn't seem right to just tighten it like my manual tells me to do

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The middle bolt is just a plug to stop crap getting In. Just snug it up. As far as setting the tensioner, turn the spring loaded screw clockwise untill it stops, then pull the screwdriver out.

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