Author Topic: Help..How to kickstart gear roll pin removal  (Read 620 times)

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Offline Honda Tom

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Help..How to kickstart gear roll pin removal
« on: December 06, 2023, 04:18:44 PM »
Help!!!!
Rebuilding a 1970, K) motor. How do I remove the roll pin so that I can replace the bearing??
I don't want to damage the case.
Thanks for the HELP!!!
Tom

Offline MauiK3

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Re: Help..How to kickstart gear roll pin removal
« Reply #1 on: December 06, 2023, 04:49:06 PM »
I don’t remember
Can it tap down and out?
Use a quality squared off pin punch.
1973 CB 750 K3
10/72 build Z1 Kawasaki

Offline HondaMan

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Re: Help..How to kickstart gear roll pin removal
« Reply #2 on: December 06, 2023, 05:11:25 PM »
What bearing are you referring to? There is no bearing inside the kickstart gear.
But, to pull the pin: I use a flat-blade screwdriver and a pair of Vise-Grip pliers. Lay the flat blade on the pin's support surface and then press the pliers against them, and set the pliers tight enough to squeeze the roll pin a little bit. The gently wedge the pliers upward with the screwdriver. You'll have to do this maybe 10 times as it inches (millimeters?) the pin upward and you also get more purchase on the roll pin, so it gets easier as it goes.

If the pin is all bent and squished shut after you get it out, you can use that same screwdriver blade to spread it back out little by little until it is back to normal spread in the open slot.

To put the kickstarter shaft/gear back in is harder...
See SOHC4shop@gmail.com for info about the gadgets I make for these bikes.

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Offline Honda Tom

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Re: Help..How to kickstart gear roll pin removal
« Reply #3 on: December 06, 2023, 08:16:31 PM »
Thanks Honda Man.
I just assumed that their was a bearing. Perhaps their is no good reason to take that aspect apart for the complete overhaul?
It does spin freely, and feels tight, with no "funny" grinding or wobble/looseness.
The bike does have over 60k miles. Your input and expertise is appreciated.


Offline HondaMan

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Re: Help..How to kickstart gear roll pin removal
« Reply #4 on: December 08, 2023, 06:42:42 PM »
Thanks Honda Man.
I just assumed that their was a bearing. Perhaps their is no good reason to take that aspect apart for the complete overhaul?
It does spin freely, and feels tight, with no "funny" grinding or wobble/looseness.
The bike does have over 60k miles. Your input and expertise is appreciated.



It should be fine. I don't remove them unless I have to, like for a full case-wash in the machine shop's parts washer. Those washers will put grit into the bearing (any bearing) that is impossible to remove.

...I won't tell you how I know that...
 :-[
See SOHC4shop@gmail.com for info about the gadgets I make for these bikes.

The demons are repulsed when a man does good. Use that.
Blood is thicker than water, but motor oil is thicker yet...so, don't mess with my SOHC4, or I might have to hurt you.
Hondaman's creed: "Bikers are family. Treat them accordingly."

Link to Hondaman Ignition: http://forums.sohc4.net/index.php?topic=67543.0

Link to My CB750 Book: https://www.lulu.com/search?adult_audience_rating=00&page=1&pageSize=10&q=my+cb750+book

Link to website: www.SOHC4shop.com