2017 yz250f head bolt torque

Mm471
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Mm471
The manual says like 24 ft lbs but that doesn’t seem like enough, I’ve heard they are torque to yield, does anyone know the specific settings?
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Paul_Pitzonka
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Paul_Pitzonka 9/29/2020 6:34pm
9/29/2020 6:34pm Edited Date/Time 9/29/2020 6:35pm
if the service manual lists 24 ft-lbs then that’s the correct spec and not a TTY bolt... Some Yzf’s use a torque angle procedure to achieve final torque value (just because a bolt is tightened using this method doesn’t not mean it’s definitely TTY)... While I have never been able to find a definitive answer; I believe these bolts to be TTY, due to their reduced bolt shank, and have always be replaced with new ones as is standard procedure for any TTY hardware...

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