motorized bike crank shimming

my first edited video on UA-cam on how to shim your crank for your motorized bike.
Shim size is:
Shim Flat Washer, 18-8 Stainless Steel, 5/8" Bolt Size, 0.632" ID, .750" OD, 0.008" Thick (Pack of 25)

[@WredFawks]

The metric size for these is a 16x22x0.2, thankfully they are easy to find and come in bulk sizes so if you build performance oriented mills instead of from crate motors they are very easy to score.

[@WredFawks]

@Franklin Freewheeler if you find them in 15mm id then get them, the only shim washers I could find remotely closer were 16 and were being sold by a kit/parts seller so *shrug*

[@diydarkmatter]

very cool . wish you would have shown how you put it together . but i guess its pretty explanatory. good job

[@diydarkmatter]

wow looks like im your 3rd subscriber . hope you do more videos . your pretty good at it .

[@motorizedbikestuff5339]

@@diydarkmatter hey thanks man i appreciate that very much,thank you! and yea i had the vid clip of me putting the crank in the case but forgot to add it in the vid,.and this was suppose to bne a short vid to help someone out on LA Hovers discord server.thanks my dude :)

[@devswagg59]

that’s a nice caliper

[@Littleevil9975]

Nice bro

[@microfarmers]

I think there is supposed to be between 5 and 8 thousandths end play.

[@motorizedbikestuff5339]

i got around 10 so...

[@seanolson5900]

Good vidja

[@MikeNBikes]

What exactly is the benefits behind shimming a crank?

[@marshallgibson8872]

Im sure it dont make a difference but the crank is in backwards lol

[@upsidedown1986]

Good stuff 👍

[@motorizedbikestuff5339]

thanks :)

[@nicka9103]

Thanks for the video! What size were the shims you used? I looked on Amazon but couldn’t find any. Thanks for the help.

[@motorizedbikestuff5339]

Shim Flat Washer, 18-8 Stainless Steel, 5/8" Bolt Size, 0.632" ID, .750" OD, 0.008" Thick (Pack of 25)

[@ItzM3yaBoi]

Do you know of where I can buy a crank shaft for a 49cc 2 stroke. I installed a pull starter and since went back to just pedal starting it.. the damage was done though. when the magnet broke it SNAPPED it clean in half.

[@motorizedbikestuff5339]

Ya that sucks.. Amazon and eBay good place to start..

[@Gio_samudra]

nice vidio guyss 👍👍👍

[@motorizedbikestuff5339]

Thanks :)

[@Gio_samudra]

@@motorizedbikestuff5339 you're welcome

[@bradleymayer5120]

My motor has twice as much play and hasn’t gave me an issue from the crank is it really worth the hassle of shimming it unless it’s really bad?

[@motorizedbikestuff5339]

it said,..that if it moves around alot it can cause the needle bearing on the wrist pin to walk,.if it moves out of alignment to far it will destroy the needle bearing,.then the pieces get in the motor and case bearings and the motors toast thats why they usually shim that at the factory ,..or not as in this case.your motor your call.

[@warrenfox5458]

Stop wasting all your time take the crank apart add another gasket and screw the thing together nice and tight that's all you have to do I've been putting these two things together and never used a shame once I don't even know what it looks like use two gaskets that'll fix your problem.

[@motorizedbikestuff5339]

LOL so how would making even more room between the crank and case solve that problem? that would make it even farther out lol the reason being if the crank can move back and forth that means the wrist pin needle bearing can walk ou t causing catastrophic failure ,.but youve done some many of these you know that already right? lol thanks for the input though.