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Author Topic: CB100 rebuild  (Read 881 times)

Offline thewizz

  • Posts: 8
CB100 rebuild
« on: Apr 01, 2018, 22:45:54 »
G'day all,
I was looking for an excuse to spend time in my garage drinking coffee/beer and swearing at things, so I bought this little old bike and rebuilt it. No real mods to speak of, just the zen of reassembling clean parts and tuning it in!

Offline thewizz

  • Posts: 8
Re: CB100 rebuild
« Reply #1 on: Apr 01, 2018, 22:56:02 »
When I first checked the oil filter/screen, I found a gear tooth sitting in among the muck! After pulling the case apart, I found the culprit.

Offline thewizz

  • Posts: 8
Re: CB100 rebuild
« Reply #2 on: Apr 01, 2018, 22:57:37 »
Major bits back from soda blasting.

Offline thewizz

  • Posts: 8
Re: CB100 rebuild
« Reply #3 on: Apr 01, 2018, 23:04:18 »
Not sure if this link to YouTube will work..



(Replacement side covers have arrived since the video was taken.)

Offline thewizz

  • Posts: 8
Re: CB100 rebuild
« Reply #4 on: Apr 01, 2018, 23:15:42 »
I wanted to make this image before all of these great old components were hidden again in the oily darkness. I hope I don't see most of them again too soon.

Offline thewizz

  • Posts: 8
Re: CB100 rebuild
« Reply #5 on: Apr 01, 2018, 23:25:14 »
An Australian-delivered bike with 'km/h' markings on the speedo. Minimal wear on the engine after 11k km. Only one thrust washer replaced due to some wear, plus new oil seals and gaskets, and the idler gear with the broken teeth. Luckily no other components were damaged when the teeth broke loose.
« Last Edit: Apr 01, 2018, 23:28:10 by thewizz »

Offline thewizz

  • Posts: 8
Re: CB100 rebuild
« Reply #6 on: Apr 01, 2018, 23:42:30 »
I had the frame sand-blasted and powder-coated. Couldn't face trying to clean/paint it myself. Paint on the tank is original and to my eye has just the right amount of patina.

Offline thewizz

  • Posts: 8
Re: CB100 rebuild
« Reply #7 on: Apr 02, 2018, 00:06:24 »
No plans to modify this little bike. The dimensions are too small for rear-sets and clip-ons. Runs well with the stock air-box and jets, and everything works for me on 6v.

Offline The Limey

  • Posts: 407
  • Evil English Villain
Re: CB100 rebuild
« Reply #8 on: Apr 02, 2018, 05:16:10 »
What a lovely little bike.
I was born a rocker.  I'll die a rocker.  And I'm proud of it.

Offline JSJamboree

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  • Posts: 1115
  • Weird Indy Kid
Re: CB100 rebuild
« Reply #9 on: Apr 02, 2018, 14:04:23 »
No plans to modify this little bike. The dimensions are too small for rear-sets and clip-ons. Runs well with the stock air-box and jets, and everything works for me on 6v.

I hear what you are saying, and raise you a modified CB100, VStack, 12v conversion, lowrise bars

Your turn  ;D ;D ;D ;D




Offline WhyNot

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Re: CB100 rebuild
« Reply #10 on: Apr 02, 2018, 14:49:07 »
Great looking bikes guys........................really wish I wasn't so darn lazy.

Got one out from under a tree, built it till it ran, it peed too much gas and the kick shaft stripped, so now sitting under a cover in the storage shed.

2006 Harley Davidson Heritage Softail
1975 Honda CB750K5 needs carb work
1974 Honda CB350F2 needs tins painted (being lazy)
1972 Honda CB175K2 roller no engine
1972 Honda CB/CL350 Engines need roller
1972 Honda SL350K2 Frame for above engine
1972 Honda CB100K2 needs kicker shaft
1990 Mitsubishi MM needs engine rebuild
1984 Dodge D50 Beater DD since 1997