1981 honda cb650 project bike

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Pbiggs
Posts: 146
Joined: Fri Aug 09, 2013 6:44 pm
Location: Salt Lake

1981 honda cb650 project bike

Postby Pbiggs » Tue Aug 13, 2013 2:39 pm

19 years old
Bought the bike for 300
This is not only too show you guys and bounce ideas from but my own place too show my progression.
This is only my second Project bike.

compression runs 1:75 2:95:3:125:4:130
Runs okay now will rev up and is drivable, runs best with choke for now Image

will keep this updated these are beautiful bikes
Last edited by Pbiggs on Wed May 14, 2014 10:55 pm, edited 2 times in total.

Pbiggs
Posts: 146
Joined: Fri Aug 09, 2013 6:44 pm
Location: Salt Lake

Re: 1981 honda cb650 project bike

Postby Pbiggs » Tue Aug 13, 2013 3:30 pm

picture stolen from another forum user
Sorta style Im going for seat mostly
Attachments
CB 650 Custom %2782 Modificada (1).jpg
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CB 650 Custom %2782 Modificada (1).jpg (123.15 KiB) Viewed 15445 times

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Volker_P
Posts: 5511
Joined: Mon Mar 06, 2006 1:53 am
Location: southern Germany

Re: 1981 honda cb650 project bike

Postby Volker_P » Wed Aug 14, 2013 2:08 am

Welcome here! :D

looks good but also a lot of work.
Well, that's why we are here.
With regard to the missing head bolt washers and the poor compression on 1+2, have a close look at these threads down in the case!
Cosky's great (free) online manual: http://cosky0.tripod.com

forum links to common technical issues

If you really like this site and you would not like to see it vanish soon, have a look there: Urgent: Future of HondaCB650.com Forum

Pbiggs
Posts: 146
Joined: Fri Aug 09, 2013 6:44 pm
Location: Salt Lake

Re: 1981 honda cb650 project bike

Postby Pbiggs » Fri Aug 16, 2013 6:22 pm

Thanks man you guys are the best this is by far my favourite bike ive owned

Pbiggs
Posts: 146
Joined: Fri Aug 09, 2013 6:44 pm
Location: Salt Lake

Re: 1981 honda cb650 project bike

Postby Pbiggs » Sat Sep 28, 2013 12:52 am

So far so good,
Image
Before and after
Image
So far so good, Frame lowered 2" in the front not sure how many I will in back but am afraid of it messing the the floats
Image
Last edited by Pbiggs on Wed May 14, 2014 11:00 pm, edited 1 time in total.

Pbiggs
Posts: 146
Joined: Fri Aug 09, 2013 6:44 pm
Location: Salt Lake

Re: 1981 honda cb650 project bike

Postby Pbiggs » Fri Feb 21, 2014 12:35 am

null
Last edited by Pbiggs on Wed May 14, 2014 10:59 pm, edited 1 time in total.

Pbiggs
Posts: 146
Joined: Fri Aug 09, 2013 6:44 pm
Location: Salt Lake

Re: 1981 honda cb650 project bike

Postby Pbiggs » Wed May 14, 2014 10:57 pm

[quote="Pbiggs"]Will try and give better pictures sorry guys :lol: umm.. here they are now.. :mrgreen:

Coming along swapped in a bored 1980 motor
Image

Image

Image

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JorgenL
Posts: 141
Joined: Sun Jun 03, 2012 3:00 pm
Location: Helsingborg, Sweden

Re: 1981 honda cb650 project bike

Postby JorgenL » Thu May 15, 2014 3:55 am

Looking great!!
Just make sure you keep the bike somewhat leveled.
I got carried away and lowered mine a bit in the front (1.5" through the triple trees) without doing the rear.
The bike went from smooth ride to really scary! It started to wobble on a straight road when doing 90 km/h. Braking with the rear brake was the only way I could make it stop.

When I lowered the rear about an inch the wobble disappeared.

Pbiggs
Posts: 146
Joined: Fri Aug 09, 2013 6:44 pm
Location: Salt Lake

Re: 1981 honda cb650 project bike

Postby Pbiggs » Sat Jun 21, 2014 11:40 pm

Thanks for the feedback jorgen!

Can't remember what i've done recently as I feel I've taken it apart too many times too count,
But here it is, Running great.. Would be great too finish up the wiring but no luck so far.

Very temporary custom seat, Already have a new seat made just needs too be upholstered.. Doesn't have those ugly brackets and wraps around the frame for a cleaner look.
Image

And here's another thought as another cb650 followed me home one night, so I threw the tank and side covers.

not bad.
Image

Pbiggs
Posts: 146
Joined: Fri Aug 09, 2013 6:44 pm
Location: Salt Lake

Re: 1981 honda cb650 project bike

Postby Pbiggs » Mon Jul 14, 2014 11:02 pm

Bike is nearly completed, Atleast street legal and being ridden daily.


Image

tcoop
Posts: 21
Joined: Tue Oct 29, 2013 12:32 pm
Location: South Weber, Utah

Re: 1981 honda cb650 project bike

Postby tcoop » Tue Jul 15, 2014 10:37 am

Nice build so far. I have a few questions for you (I'm thinking of doing a café on mine)
Do you have a problem with the bars hitting the tank? I see that you made your own seat pan, how are you attaching it to the bike? do you use the original mounts?
Ty
Current bikes
1980 CB650C - project
1983 Yamaha Venture
1978 YAMAHA XS1100E - project
1982 Yamaha XJ1100 - project
1982 Yamaha XJ1100 - Wifes bike
1983 Yamaha XJ750 MN Maxim - Also Wifes bike

Pbiggs
Posts: 146
Joined: Fri Aug 09, 2013 6:44 pm
Location: Salt Lake

Re: 1981 honda cb650 project bike

Postby Pbiggs » Sun Jul 20, 2014 8:31 pm

Don't have a problem with the bars hitting the tank, The seat pan was molded too the frame and bolts through the gas tank and two mounts in the back ya can't see,

Looks like you live pretty close too me, let me know if you have any questions. Upload some pictures of your bike!

tcoop
Posts: 21
Joined: Tue Oct 29, 2013 12:32 pm
Location: South Weber, Utah

Re: 1981 honda cb650 project bike

Postby tcoop » Mon Jul 21, 2014 2:43 pm

This is how it sits right now.
Image

I just got it running on all four cylinders. It had a couple of jets completely clogged.
Not very pretty but it has potential. I can't complain too much I got it for free.
Ty
Current bikes
1980 CB650C - project
1983 Yamaha Venture
1978 YAMAHA XS1100E - project
1982 Yamaha XJ1100 - project
1982 Yamaha XJ1100 - Wifes bike
1983 Yamaha XJ750 MN Maxim - Also Wifes bike

Pbiggs
Posts: 146
Joined: Fri Aug 09, 2013 6:44 pm
Location: Salt Lake

Re: 1981 honda cb650 project bike

Postby Pbiggs » Mon Jul 21, 2014 9:44 pm

Ahh I remember This bike and those flames haha. I like that chrome 4-1 Very good looking! If you were interested I have a cafe seat I was going too use on my bike.


Heres the seat
http://www.motorcycleseatsdirect.com/19 ... seat-unit/

tcoop
Posts: 21
Joined: Tue Oct 29, 2013 12:32 pm
Location: South Weber, Utah

Re: 1981 honda cb650 project bike

Postby tcoop » Tue Jul 22, 2014 11:32 am

Love the seat, but the project is now my son's so it will be up to him on that. He is 19 also... ok 20 in a few days.

He told me last night that he wants to get back into riding again. (He stopped because of medical reasons ) I had offered the bike to him when he came home from North Carolina but he did not plan on riding any more so he declined. Now that he want to ride again I told him the offer still stands and he accepted. Most likely he will get it running good, new tires and maybe re-paint the tank (That thing is ugly :shock: ) and ride it for the rest of the summer. I will still be the one posting questions and asking for help when needed.
Ty
Current bikes
1980 CB650C - project
1983 Yamaha Venture
1978 YAMAHA XS1100E - project
1982 Yamaha XJ1100 - project
1982 Yamaha XJ1100 - Wifes bike
1983 Yamaha XJ750 MN Maxim - Also Wifes bike


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