Search found 7 matches

by Cb673
Tue Oct 16, 2018 12:42 am
Forum: Show it off
Topic: My piston sets and fixtures.
Replies: 0
Views: 177

My piston sets and fixtures.

I've had a few 650's and someone Once said I can't get overbore pistons..... http://i350.photobucket.com/albums/q429/Purplechickenweasel/IMG_20181015_222648_zpsgrn9daha.jpg So I have 66, 64.75, 62, 61 and 60mm piston sets I have modified for the 650. Most for stock cam, 1 set for turbo, 2 550 sets, ...
by Cb673
Tue Oct 16, 2018 12:17 am
Forum: Technical Discussion
Topic: My '79 cb650 62mm overbore project.
Replies: 2
Views: 111

Re: My '79 cb650 62mm overbore project.

Here is the cabinet -o- parts for my 650. http://i350.photobucket.com/albums/q429/Purplechickenweasel/IMG_20181015_214902_zpshoktdirx.jpg The bottom area is cb650, and cb550 overbore pistons sets, fixtures, and fabrication prints and notes. 66, 64.74, 62, 61 cb650 overbore sets, and 61mm cb550 pisto...
by Cb673
Mon Oct 15, 2018 11:46 pm
Forum: Technical Discussion
Topic: My '79 cb650 62mm overbore project.
Replies: 2
Views: 111

My '79 cb650 62mm overbore project.

Here's a pic of my bike, looks sad though. http://i350.photobucket.com/albums/q429/Purplechickenweasel/IMG_20181001_184819_zps8wwvtsja.jpg As it sits, it's running nice. Is is running '85 600cc ninja carbs, 61mm pistons and sadly a 550 stock cam with a slotted cam gear. Yes the thank looks ratty, ha...
by Cb673
Sun Oct 07, 2018 10:29 am
Forum: General Discussion
Topic: Engine displacement vs stated CC's ???
Replies: 1
Views: 245

Engine displacement vs stated CC's ???

Hello all, So the cb650 is bore x stroke is actually 627cc, with head chamber of (?) 24cc. Making roughly 650 when added together. If a motor were bored out, and one wanted to put cb"XXX" on the side covers, should the head 24cc's be added as well? I'm doing a 62mm overbore soon, and don't...
by Cb673
Sun Oct 07, 2018 10:05 am
Forum: General Discussion
Topic: Hello all
Replies: 3
Views: 287

Re: Hello all

Yes it's a stock 550 cam using a 5 degree slotted cam gear.
I would have changed it long ago, but if I tear into this motor I know there is at least 1 almost stripped out thread in the head, and have been putting off helicoiling the holes.(thread repair insert)

L8r
by Cb673
Wed Oct 03, 2018 7:53 pm
Forum: General Discussion
Topic: Hello all
Replies: 3
Views: 287

Hello all

I've lurked a lot, and learned a lot as well. Thanks for all the ideas, fixes, and such.... Anyway, ive been riding my '79 650 for about 14 years now. Wrenching, cursing and smiling along the way. Loving the Estacada,OR area. Haven't gotten the picture resizing to work yet... So... my '79 is.... mod...
by Cb673
Wed Oct 03, 2018 7:22 pm
Forum: General Discussion
Topic: G’day! I’m an Aussie in Canada with a 1979 CB650!
Replies: 4
Views: 610

Re: G’day! I’m an Aussie in Canada with a 1979 CB650!

Nice '79 there. First red one I've seen, not bad.
Noticed the carbs are not stock.
Are those off a cb750?


L8r

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