\', 1979 to 1983 DOHC CB750/900/1000/1100 Honda Custom, \' - \', Honda DOHC Customs, \'
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sparrow
This Just In
This Just In



Joined: Nov 01, 2009
Posts: 3
Location: Atlanta, GA

PostPosted: Sun Nov 01, 2009 11:30 am Reply with quote Back to top

Hey folks!

Long time listener, first time caller. I've just acquired a non-running 1980 cbc 900 from a buddy of mine. This'll be my first bike project and I've got a lot to learn, so I hope you guys can tolerate some awkwardly dumb questions.

Let the adventure begin!

(pics coming soon...)
 
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old_dirt
Power Poster
Power Poster



Joined: Sep 13, 2009
Posts: 1133
Location: West Virginia (Mason County)

PostPosted: Sun Nov 01, 2009 12:48 pm Reply with quote Back to top

Welcome to the forum!
Nuttin' more fun than tryin' to figure out what is wrong with sombebody else's bike!
Looking forward to the pics, too!

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...Image
.....1983 CB1000 Custom........ 
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OldTimer
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Joined: Aug 02, 2007
Posts: 10211
Location: Conroe, TX

PostPosted: Sun Nov 01, 2009 2:11 pm Reply with quote Back to top

Welcome

Howdy from the Lone Star State.

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81 CB900C (Sold)
83 CB1000C 
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pd750
Moderator



Joined: Aug 01, 2007
Posts: 24779
Location: On the road , again .

PostPosted: Sun Nov 01, 2009 2:21 pm Reply with quote Back to top

Welcome to the site sparrow ... Smile

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Please put the year and model of your bike in the signature section on your profile page and set \"Always attach signature \" to YES . Just below the Reply box . 
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vantasticdude
Running Strong
Running Strong



Joined: Aug 24, 2009
Posts: 437
Location: Reinholds,Pa

PostPosted: Sun Nov 01, 2009 3:42 pm Reply with quote Back to top

Welcome from Amish country

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1982 CB 750 C 
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sparrow
This Just In
This Just In



Joined: Nov 01, 2009
Posts: 3
Location: Atlanta, GA

PostPosted: Sun Nov 01, 2009 6:18 pm Reply with quote Back to top

Image
Image

There she is. She broke down nearly 5 years ago (reportedly an electrical problem), and has been battling the weather in a driveway ever since. Serious work is probably needed for this resurrection.

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1980 CB 900 Custom 
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holysmokes
Admin



Joined: Jul 25, 2007
Posts: 37019
Location: ridge road springfield nova scotia

PostPosted: Sun Nov 01, 2009 6:34 pm Reply with quote Back to top

front signals are off a smaller honda

should be interesting

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On a steel horse i ride


People are just as happy as they make up their
minds to be.” ― Abraham Lincoln
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04 vl800
09 50 honda jazz

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pd750
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Joined: Aug 01, 2007
Posts: 24779
Location: On the road , again .

PostPosted: Sun Nov 01, 2009 6:41 pm Reply with quote Back to top

Good thing you have a lot of time on your hands , huh ... Very Happy

You probably figured it out by now , we can help . Smile

And you have already downloaded the FSM from our Tech Docs section and read the Check list ( link in my sig ) . So , you're well on your way to a sweet running 900 .

Wink

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mstspot
Feel the Power
Feel the Power



Joined: Sep 29, 2009
Posts: 852
Location: Eufaula, Oklahoma

PostPosted: Sun Nov 01, 2009 6:46 pm Reply with quote Back to top

A really good bath and some penetrating oil and she'll look better. May as well get started, pull the plugs and spray the hell out of the cylinders with some penetrating oil and let it start to working. If the oil looks good just leave it for now till you get it ready to run, may as well go ahead and learn how to pull the carbs off, you're gonna have to. See how bad the tank is rusted, pull the petcock/sleeve out to clean the trash off. Take EVERY electrical connection apart, clean, tighten and fill with di-electric grease. Pull the right hand stator cover off so that you can get to the rotor. May as well plan on replacing the rotor, regulator/rectifier, those are more often than not the source of most charging problems on these bikes. Replace the fuses and clean the contacts. Take the cable loose from the solenoid and clean the contacts, same with the ground. Buy a new battery. After you get it running you will have to adjust the valves. Lots of little things to do. Read through the technical documents for each step and the guys on here will help with the stuff you don't understand. Looks like she will make a good rider.

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1980 CB750 C 
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genesound
administrator



Joined: Jul 24, 2007
Posts: 44113
Location: Studio City, CA

PostPosted: Sun Nov 01, 2009 6:47 pm Reply with quote Back to top

Welcome to here. wave

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NMT - New Member Thread, a Must Read, click here!!! - Information For New and Veteran Members.
Contains SITE RULES, how to enter required bike information in your signature, thread and picture posting...
Also some important DOHC wrenching tips, and some other information.
Kindly read this linked thread with the rules before posting
pictures or asking lots of questions that are already answered in it.

ŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻ
81 CB900C, 83 CB1000C 
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mstspot
Feel the Power
Feel the Power



Joined: Sep 29, 2009
Posts: 852
Location: Eufaula, Oklahoma

PostPosted: Sun Nov 01, 2009 6:49 pm Reply with quote Back to top

What's that other bike in the corner?

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1980 CB750 C 
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holysmokes
Admin



Joined: Jul 25, 2007
Posts: 37019
Location: ridge road springfield nova scotia

PostPosted: Sun Nov 01, 2009 7:03 pm Reply with quote Back to top

buy new tires

the first thing i check, is the ohms of the charging rotor

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On a steel horse i ride


People are just as happy as they make up their
minds to be.” ― Abraham Lincoln
http://i559.photobucket.com/albums/ss31/johnveinot/DSCF1663.jpg
04 vl800
09 50 honda jazz

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sparrow
This Just In
This Just In



Joined: Nov 01, 2009
Posts: 3
Location: Atlanta, GA

PostPosted: Sun Nov 01, 2009 7:16 pm Reply with quote Back to top

Great advice mstspot! I'm certainly no mechanic, so I welcome any help I can get.

Hiding in the corner is a 97 Kawasaki Vulcan Classic 800. Here's a better pic taken a couple weeks ago:

Image

So I did jump the gun a bit, and I drained the oil already. I pulled the tank off, and it was bone dry, though something in there is rattling like it's got a bit of dirt (or rust flakes) in there. I couldn't get the cap off, even though the key works fine in the ignition and helmet lock. WD-40 wasn't the answer (I'll likely post separately about this if extra fiddling doesn't do the trick).

I did manage to get the oil cooler back in place though. The rubber fasteners had rotted and broken, so as a quick fix, I got some adhesive in there and put it back on again. The tongue at the bottom of the cooler had bent quite a bit with it hanging like that, so I re-jiggered that too.

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1980 CB 900 Custom 
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mstspot
Feel the Power
Feel the Power



Joined: Sep 29, 2009
Posts: 852
Location: Eufaula, Oklahoma

PostPosted: Sun Nov 01, 2009 7:37 pm Reply with quote Back to top

Try penetrating oil instead, let it sit over nite then just keep wiggling it, light not might

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1980 CB750 C 
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D-Day
Here's Gumby!
Here's Gumby!



Joined: Jul 23, 2007
Posts: 5638
Location: Charlotte, NC

PostPosted: Sun Nov 01, 2009 7:38 pm Reply with quote Back to top

Welcome

Click on SeanG's Checklist in my signature for some good ideas.

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´81 CB900c Sold

2001 BMW K1200LT (RIP)
1991 Honda ST1100. 190K miles and smooth as silk. 
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mstspot
Feel the Power
Feel the Power



Joined: Sep 29, 2009
Posts: 852
Location: Eufaula, Oklahoma

PostPosted: Sun Nov 01, 2009 7:42 pm Reply with quote Back to top

that is a good list

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1980 CB750 C 
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holysmokes
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Joined: Jul 25, 2007
Posts: 37019
Location: ridge road springfield nova scotia

PostPosted: Sun Nov 01, 2009 7:43 pm Reply with quote Back to top

the 800 vulcan is also 800 suzuki or visa versa

_________________
On a steel horse i ride


People are just as happy as they make up their
minds to be.” ― Abraham Lincoln
http://i559.photobucket.com/albums/ss31/johnveinot/DSCF1663.jpg
04 vl800
09 50 honda jazz

Paint gelding 
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