Custom 70cc engine build

Is it worth it or stupid?

  • YES

    Votes: 20 62.5%
  • Hell no

    Votes: 2 6.3%
  • Kinda

    Votes: 4 12.5%
  • YES

    Votes: 3 9.4%
  • Nah I'll pass

    Votes: 3 9.4%

  • Total voters
    32
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Still smokeing......tried quitting a couple times. Never stuck.

You can do it . Big thing to remember is you are stronger than you think. I tried several time myself before I was able to quite . Longest I had ever quite was a month before now. Made the mistake of thinking I could have a smoke while out drinking with friends and I could just stop at will . WRONG!
Sean you really got to want it .
 
So last night I shaved away at the inside of the crankcase case to clear the big ass 39.6mm stroke crank becuase it rubbed a bit (obviously don't want that happening) now clears great ?
IMG_20190607_212826.jpg
IMG_20190607_212823.jpg
Looks horrible but your never Gunna see it anyways, also don't be alarmed those two gashes are only were the bit slipped a bit and rubbed off some anodizing so it's not actually damaged, just the ano is. Nothing to worry about.
 
Sooooo the 20mm bit apparently wasn't big enough, the bearing won't go in, so what should I drill it too? I'm thinking 55/64 inch (20.638mm), the actual bearing is 21mm so the steel gear needs to expand and the bearing needs to contract .362mm, do you think this will work? (I probably should have listened to @TODD but I'm a ignorant fool sometimes lol). Also don't ask how I got the 20mm bit with a bigger shank than my drill to work, I was bad ?
 
Come on out with it????
soooo hose clamped my gear to my clutch bell (the tip of the clutch bell as the shank) put the drill bit in the vise, and put the gear and clutch bell contraption in my drill and while the drill was at full speed, lowered the gear onto the drill bit. Super ghetto, coulda bought a proper bit but I'm cheap and lazy ?
 
Nah that's what I have you guys over then pond for ? give it about .005" press and it should be good. You can always use some retaining compound if you get less press
Do you have a specific bit size that I can buy? I'd prefer not to go to a machine shop to get this done as that's gunna be a pain in the ass, and I don't know if there's any nearby.

Also guys, should I do a chrome/polished/mirror finish look on my aluminum parts or should I do a brushed aluminum look? What do you think? Brushed is easier but I don't care because I got too much time on my hands and want to do something while I wait for parts lol.
 
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Also guys, should I do a chrome/polished/mirror finish look on my aluminum parts or should I do a brushed aluminum look? What do you think? Brushed is easier but I don't care because I got too much time on my hands and want to do something while I wait for parts lol.
All this pulling with two hands business you been doing that's past few months ???????? polishing alloy parts to mirror finish will be a breeze????????
 
Do you have a specific bit size that I can buy? I'd prefer not to go to a machine shop to get this done as that's gunna be a pain in the ass, and I don't know if there's any nearby.

Also guys, should I do a chrome/polished/mirror finish look on my aluminum parts or should I do a brushed aluminum look? What do you think? Brushed is easier but I don't care because I got too much time on my hands and want to do something while I wait for parts lol.
have to say i like the brushed look the most, but shiny/polished would be really nice too.
 
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