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Flywheel install question: 7th hole.

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Old Dec 20, 2025 | 09:00 PM
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Default Flywheel install question: 7th hole.

Google search is broken for some reason...

There are 6 mounting bolts and one hole on both the crank rear and the flywheel. is the 7th supposed to line up? I keep reading its supposed to be asymetric but it appeared pretty symetric and rotatable when i was test fitting them.

Im also installing a mantic clutch + flywheel. the FSM keeps saying to clock the OEM FW the same during install, due to installed balance weights. Do I have to worry about balance weights if the mantic has zero adjustability?

Thanks!
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Old Dec 21, 2025 | 02:53 PM
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Originally Posted by Ahrmike
Google search is broken for some reason...

There are 6 mounting bolts and one hole on both the crank rear and the flywheel. is the 7th supposed to line up? I keep reading its supposed to be asymetric but it appeared pretty symetric and rotatable when i was test fitting them.

Im also installing a mantic clutch + flywheel. the FSM keeps saying to clock the OEM FW the same during install, due to installed balance weights. Do I have to worry about balance weights if the mantic has zero adjustability?

Thanks!
Yes i just installed one it only goes on one way. with all the bolts lined up you will know if your rotation is off a bolt wont bolt in

Last edited by helga203; Dec 21, 2025 at 03:20 PM.
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Old Dec 22, 2025 | 01:47 AM
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Originally Posted by helga203
Yes i just installed one it only goes on one way. with all the bolts lined up you will know if your rotation is off a bolt wont bolt in
Damn! ok, thanks. I had it clocked not lined up and I got 3 bolts in cleanly (to test fit the flywheel/bell to measure for release bearing engagement) so I just assumed the other 3 would too. I guess one of those other ones would not go in. I wouldve just checked again but it takes a lot of work to pull it off the stand, hang on the cherry picker and reline up the holes. Just trying to see if I have to worry about balancing the mantic clutch since the FSM states more than once "do not misalign the balance weights!!!!"
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