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Author Topic: 81 CB650C build and introduction  (Read 1835 times)

Offline Psycrow

  • Posts: 78
Re: 81 CB650C build and introduction
« Reply #10 on: Aug 21, 2016, 16:53:33 »
try http://www.partsnmore.com/ for a cam chain and some other bits Mother Honda may have discontinued  however many of the stuff you need may still be available OEM from the dealer.

Psy

Sent from my SM-G903W using Tapatalk


Offline Bcon615

  • Posts: 10
Re: 81 CB650C build and introduction
« Reply #11 on: Aug 30, 2016, 12:59:43 »
Time for an update...



Put the shocks on and just laid the seat on the frame since I haven't started modifying that yet  :o

Once I was able to get the cylinder jug off (which took hours) I think I have found what was causing the engine to be seized up.



The next two pictures are from the piston closest in the previous picture:



The piston rings are pinched tight in their grooves:



On a better note, I'm really happy with the way painting the engine is going!



Now looking into the future, this bike still does not have a gas tank. So I was wondering, will a 79 CB650 tank fit on my 81 CB650C?


- Bill


81 Honda CB650C
78 Yamaha XS400
76 Kawasaki KZ400
03 Yamaha YZ450F

Offline AimlessMoto

  • Posts: 150
  • Blood, sweat and beers.
Re: 81 CB650C build and introduction
« Reply #12 on: Aug 30, 2016, 21:29:00 »
Soak that piston in ATF or Marvel Mystery oil for a couple days... the rings should pop right out.

As for the cylinder, a mild hone will take care of most of the crud... hopefully it's not pitted.

Offline Bcon615

  • Posts: 10
Re: 81 CB650C build and introduction
« Reply #13 on: Jul 11, 2017, 23:12:52 »
Soak that piston in ATF or Marvel Mystery oil for a couple days... the rings should pop right out.

As for the cylinder, a mild hone will take care of most of the crud... hopefully it's not pitted.

So I was looking back at this old post, and was shocked when I saw "Aimless Moto". You're the guy with the KZ400 on YouTube!!!!!
I'm currently working on a '76 KZ400 and you're bike is 100% my inspiration (I even bought that same seat cover haha). But yeah, this CB650C project is on hold until the Kawi is finished.
 - Cheers dude



Sent from my iPhone using DO THE TON
81 Honda CB650C
78 Yamaha XS400
76 Kawasaki KZ400
03 Yamaha YZ450F