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The Vintage Japanese Motorcycle Owners Group: Discussion Forums

Vintage Japanese Motorcycle Owners Group :: View topic - cbx550 rebuild (cafe racer maybe)


cbx550 rebuild (cafe racer maybe)

 
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Buddelim
Weekend Warrior
Weekend Warrior


Joined: Mar 01, 2010
Posts: 11
Location: Australia

PostPosted: Mon Mar 01, 2010 6:25 pm    Post subject: cbx550 rebuild (cafe racer maybe) Reply with quote

Cbx550 into a cafe racer? I am going to give it a go... I recently picked up a ratty 550 for 300 bucks and plan to rebuild the beast and turn it into a cafe racer, maybe not the most ideal subject for the build but for 300 dollars its the best I can get. I was wondering if anybody has done this before? Also! I have ordered the manual but have to wait a while before it lands on my door step, I want to fire te bike up today but want to replace fluids before doing so.

What viscosity rating do I need for engine oil?

The guy I bought it off told me the cam chain had gone to a better place as well, however when I took apart the top-end, it looked fine, it moved freely and there was not signs of wear. How can I tell if it needs replacing.

Also what is the best procedure for trying to fire up a bke thats been sitting for 2 years? I am buying a new battery today, replacing oil, squirting a bit of oil down the cylinders and fillingup my tank. Would this be satisfactory?

Any help is appreciated
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05c50
Gear Head
Gear Head


Joined: Oct 26, 2007
Posts: 1976
Location: Greensburg Pa

PostPosted: Mon Mar 01, 2010 7:00 pm    Post subject: Reply with quote

Welcome to vjmog Buddelim. I'm not quite sure what a cbx550 is. If you mean a cb550, there has been hundreds, maybe thousands converted to cafe racers. It's a very good idea to get the manual.

Before you start the bike, take a look at this : http://www.randakks.com/TechTip24.htm most of it applies to any bike that's been sitting.

What did the po say about the chain? What did he think was wrong?

Keep us posted,

...............Paul

_________________
�77 CB550f
�77 CB750a
�78 GL1000
�80 CB650c
�75 GL1000-finally finished
�79 KZ200
68 CB450K1-taking up all my time
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Buddelim
Weekend Warrior
Weekend Warrior


Joined: Mar 01, 2010
Posts: 11
Location: Australia

PostPosted: Mon Mar 01, 2010 7:38 pm    Post subject: Reply with quote

I wish I meant cb550 but no The cbx is a bike that was in production around 1979 but only lasted a few years, the more popular is the 6 cylinder cbx1000. Thanks for that link! I think I will print that out and stick it in my garage! He didnt know what the problem with the cam chain was he simply told me "the cam chain is gone" however I have taken off the top-end, put the bike in 4th gear, rocked it back and forward, the chain moves easily and there is no visible wear. Not being all that mechanically minded (I am 18 and my experience consists of pulling apart and rebuilding 2-stroke singles, four cylinders is a whole new ball game) I want to know what exactly to look for if a cam chain problem has been indentified.
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05c50
Gear Head
Gear Head


Joined: Oct 26, 2007
Posts: 1976
Location: Greensburg Pa

PostPosted: Mon Mar 01, 2010 8:04 pm    Post subject: Reply with quote

Well, I'm not sure that I've ever seen a cbx500, but I did find a few pictures of a 1981 model. I guess it will take some work to cafe it, but I'm sure it can be done.

The two things that usually happen to a camchain are 1) they break, 2) they stretch. If your chain had broken, I think you would have figured that out by now. If the chain has stretched so much that the tenshioner can't take up the slack, the chain will need to be replaced.

........Paul

_________________
�77 CB550f
�77 CB750a
�78 GL1000
�80 CB650c
�75 GL1000-finally finished
�79 KZ200
68 CB450K1-taking up all my time
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Qingdao
Weekend Warrior
Weekend Warrior


Joined: Nov 12, 2009
Posts: 62
Location: Charleston

PostPosted: Tue Mar 02, 2010 7:42 pm    Post subject: Reply with quote

Is it a similar motor to the CB550k? If so check for a cam chain tensioner. It is gonna be inbetween the 2 and 3 cyclenders on the carb side.
_________________
1974 Honda CB550 http://www.youtube.com/watch?v=RlZoksL5K7s
1995 1200 HD Sportster... inherited NOT purchased
1964 Honda CL50
1999 Suzuki GS 1200
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zjeppe
Commuter
Commuter


Joined: Dec 26, 2009
Posts: 349
Location: Heist-op-den-berg

PostPosted: Wed Mar 03, 2010 1:34 am    Post subject: Reply with quote

It is infact the little cbx 750, which as in the states preceded by the cbx 650(with shaft drive) There was also the cbx 400.Mechanicly ollow up for the fourvalve cb .So hyvo camchains, not roller ones Idea Inboard discs are a PITA Confused
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Buddelim
Weekend Warrior
Weekend Warrior


Joined: Mar 01, 2010
Posts: 11
Location: Australia

PostPosted: Thu Mar 04, 2010 10:48 pm    Post subject: Reply with quote

I have to pull apart the front dual-disc inboard... can't wait! Rolling Eyes
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ATOM
Weekend Warrior
Weekend Warrior


Joined: Nov 01, 2009
Posts: 5
Location: Surrey U.K

PostPosted: Fri Mar 05, 2010 5:39 am    Post subject: Reply with quote

White dust will drop out no doubt! Those inboard ventilated disks were the worst Honda idea ever ( after chocolate
cam chain tensioners! )
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tjjkc
Weekend Warrior
Weekend Warrior


Joined: Apr 14, 2009
Posts: 56
Location: Newcastle,Ontario,Canada

PostPosted: Fri Mar 05, 2010 7:43 am    Post subject: Reply with quote

Just a quick pic for the guys who do not know the cbx550,not mine but I had one in 83/84


There is one for sale right now in Toronto Can http://toronto.kijiji.ca/c-cars-vehicles-motorcycles-sport-touring-1983-Honda-CBX550F-W0QQAdIdZ190012949



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holysmokes
Weekend Warrior
Weekend Warrior


Joined: Feb 26, 2007
Posts: 155
Location: nova scotia

PostPosted: Sun Mar 07, 2010 8:11 am    Post subject: Reply with quote

we had the cbx 550 here in 82 83

i junked one a few years ago

the tensioner lays in between the two cams

one cam chain

the front disc brake was an interior brake encased in a cover

the 3 header pipes to the left..one to the right

rear sets and sport throttle kit

locknut adjustable valves

very rare around here, not a great seller as the bike market crashed around here in those years from high interest rates and lack of bike interested buyers

weird bike, strange set up, the AMC pacer/gremlin of the bike wolrd
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