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How do you remove the flywheel?

Old 04-02-2018, 08:05 PM
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How do you remove the flywheel?

How do you remove the flywheel? I have the left side stator cover off, and can likely bust off the nut holding on the flywheel with my impact wrench so I don't have to find a way to hold the flywheel still for that, but I don't have a flywheel puller to get it off after that. I know that there is likely a tapered shaft and a woodruff key. I am pretty sure that the internal thread is M22 x 1.5. Can I just by a bolt with that thread pitch and screw it in to pull off the flywheel?

Anybody out there have a tried and true technique? I have E.Marquez's lightened flywheel sitting on the bench, waiting to go on.

Last edited by skifreak; 04-02-2018 at 08:12 PM.
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Old 04-03-2018, 03:35 AM
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Yes you'll need a rattle gun & puller bolt - more commonly known as a big truck wheel bolt ;-)
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Old 04-03-2018, 04:10 AM
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I used a bolt .

Get ready for a "BANG " when it lets go !

A lightened flywheel is a good mod, Is that why you are removing the flywheel ?
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Old 04-03-2018, 05:27 AM
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Originally Posted by skifreak View Post
How do you remove the flywheel? I have the left side stator cover off, and can likely bust off the nut holding on the flywheel with my impact wrench so I don't have to find a way to hold the flywheel still for that, but I don't have a flywheel puller to get it off after that. I know that there is likely a tapered shaft and a woodruff key. I am pretty sure that the internal thread is M22 x 1.5. Can I just by a bolt with that thread pitch and screw it in to pull off the flywheel?

Anybody out there have a tried and true technique? I have E.Marquez's lightened flywheel sitting on the bench, waiting to go on.
M22 x 1.5 that can be Bolt, Drain plug or Flywheel tool
Remove the bolt and washer, screw in the pusher bolt (M22 x 1.5) till it seats and then turn it till it pops loose the taper seat of crank / flywheel.

Can be done with hand tools, but id use a real flywheel tool
https://www.amazon.com/Motion-Pro-08-0074-Flywheel-External/dp/B002308E9O $8 to your door in 2 days if you have prime.

If you have a impact gun a non hardened drain plug works just as well as the real tool, you can get them at most any Auto parts store from the "Dorman" line of products or other brands that store has...but it will be more then $8 , though perhaps in stock. If you use the impact gun to remove the flywheel, please make sure bike is in neutral.

When installing the new flywheel, make sure the crank and flywheel taper are clean, oil free, no debris.. same with the flywheel end, washer and bolt.. Seat the flywheel, put the ground and hardened washer and retaining bolt back in and toque to 116 ftlb.

Id caution you against doing that with an impact gun...
A: the washer under that flywheel retaining bolt is hardened and they don't take well to shock....
B: You can not control tq

To do it by hand, you will need a helper, put front wheel against a wall, bike in gear, helper seated on bike standing on rear brake.
And then TQ the flywheel retaining bolt to spec.
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Old 04-03-2018, 07:56 AM
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Got it. I thought it was that simple, but I thought I would check first and see if there was any tips from your experience I could learn from. Makes me love my air tools all the much more. I ordered the Motion Pro flywheel puller, worth it for the price in case I use it many times and it will be here in two days, free shipping. Yay for Amazon Prime. Also, thanks for the advice about not using the rattle gun for tightening. Good call. I will bust out the torque wrench and do it right.

I was pulling off the automatic CCTs and putting on Krieger manual CCTs (quality made units by the way), so I thought it made sense to install your "enlightened" flywheel at the same time. Which is a good thing because when pulled the left side cover, I discovered the usual Honda "stator wiring" cancer. I don't know how this thing was charging. As you can see, one of the wires fried completely in two, and if you look closely, the severely blackened one is missing its insulations and barely attached. This, my friends, is why it is always a good thing to tear down a used bike and get to know it intimately before doing a long tour, trackday, etc...

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Old 04-03-2018, 08:26 AM
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Originally Posted by skifreak View Post

We shall name this ... "I dont need no moosefit regulator" With a SIDE name of "Honda knows best, only idiots hack in other parts"
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