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General Discussion
Started by MX503 at 03-10-2010 10:57 AM. Topic has 13 replies.
  
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 03-10-2010, 10:57 AM
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MX503
 
Joined on 12-30-2009
Kansas City, MO. area
Posts 48
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It's Alive!!!!!! and I have a few questions
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After 25 years the monster lives!!!!! A little melodramatic there. I
finally got the bike running this morning after a few little challenges
so it runs for the first time in 25 years. It idles very well but has a
little backfiring - just a little popping on decel. So after a 20
minutes of up and down the street, I changed the final drive gear oil
and drained the coolant so its off to buy more coolant. Both had low time on them but needed changed for sure even with 3110 miles! How do you get all the air out of the cooling system on these bikes?
Also, there is a slight hesitation right off of idle but I think I will
ride it a while before any adjustments. The tach does not work
properly. The needle moves as slow as the speedo needle and does not
match the revs of the bike. What should I look at to fix it? So thanks to all who have helped so far and those who will guide me in the future!
1979 CX500 Standard 3100 miles
"Life is short. Enjoy it here on earth keeping in mind the greater goal".
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03-10-2010, 11:38 AM
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spanish bandit
Joined on 02-12-2009
southern spain
Posts 4,999
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Re: It's Alive!!!!!! and I have a few questions
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ill take the air question.....bike on main stand,rad cap off,topped up with coolant,bike ticking over,wait for thermostat to open,just watch the fluid level drop as the pump forces coolant around the the system,air will come to the top of the rad,top up,you are away
when i feel the need,i do it,llego,ve 60,s
-----------------------------
2008.1982 honda gli silverwing [uk model ]
2010.1981 honda gli silverwing [uk model ]
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03-10-2010, 11:44 AM
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MX503
Joined on 12-30-2009
Kansas City, MO. area
Posts 48
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Re: It's Alive!!!!!! and I have a few questions
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Thank you. Thank you very much as Elvis would say. Now, would you believe the little plastic coolant bolt broke off? It did with very little force. It was so loose I was able to unscrew what was left. So, do I really need a plastic bolt or will a metal bolt work?
1979 CX500 Standard 3100 miles
"Life is short. Enjoy it here on earth keeping in mind the greater goal".
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03-10-2010, 11:54 AM
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Abes_CW
Joined on 04-17-2007
saskatoon
Posts 3,021
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Re: It's Alive!!!!!! and I have a few questions
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Had a metal one in mine.
1983 GL650i
Had 4 CX/GL's at one point this year, down to one, next spring is another adventure!
age 38 (29 plus tax)
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03-10-2010, 12:20 PM
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marshallf3
Joined on 01-12-2009
Oklahoma City
Posts 1,530
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Re: It's Alive!!!!!! and I have a few questions
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The tach may or may not start working on its own after the weather (and the bike) warm up. It's generally due to hardened grease inside, You can loosen it up with a bit of silicone spray in from the back but just a tiny bit at a time or you'll fog the window.
1979 CX500C
░░░░░░░
96 & 98 GTP, 78 Chevy G30 400V8, 78 Gremlin 304V8, 65 Barracuda 273V8
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03-10-2010, 12:28 PM
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spanish bandit
Joined on 02-12-2009
southern spain
Posts 4,999
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Re: It's Alive!!!!!! and I have a few questions
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 MX503 wrote: | Thank you. Thank you very much as Elvis would say. Now, would you believe the little plastic coolant bolt broke off? It did with very little force. It was so loose I was able to unscrew what was left. So, do I really need a plastic bolt or will a metal bolt work?
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a spark plug will fit,with a bit of ptfe tape until you can get a replacement
when i feel the need,i do it,llego,ve 60,s
-----------------------------
2008.1982 honda gli silverwing [uk model ]
2010.1981 honda gli silverwing [uk model ]
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03-10-2010, 3:47 PM
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Shep
Joined on 01-30-2007
UK.2x1980CX500A
Posts 7,638
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Re: It's Alive!!!!!! and I have a few questions
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03-10-2010, 5:00 PM
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MX503
Joined on 12-30-2009
Kansas City, MO. area
Posts 48
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Re: It's Alive!!!!!! and I have a few questions
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Thanks guys for the help. My initial observation about the bike is it feels a little underpowered although it runs good. I thought it would have more torque but without a working tach, it's all seat of the pants right now. I would imagine the 650 has a lot more power.
1979 CX500 Standard 3100 miles
"Life is short. Enjoy it here on earth keeping in mind the greater goal".
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03-10-2010, 5:51 PM
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kingston73
Joined on 04-19-2008
Bellingham, MA
Posts 1,722
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Re: It's Alive!!!!!! and I have a few questions
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For your tach, did you take the cable off and lube it? Could be a combo of unlubed cable and globbed grease inside the housing. Best way to lube it is unscrew it from the tach housing and drip or spray some synthetic lube down there. I've used bike chain lube with pretty good results, but any light liquid will work.
1979 cx500D - mostly stock
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03-10-2010, 5:54 PM
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MX503
Joined on 12-30-2009
Kansas City, MO. area
Posts 48
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Re: It's Alive!!!!!! and I have a few questions
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I have not removed the cable yet. I will take it off and clean and lube
it. I have the radiator drained already so that will be tomorrow. Am I
correct that there is grease in the tach itself?
1979 CX500 Standard 3100 miles
"Life is short. Enjoy it here on earth keeping in mind the greater goal".
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03-10-2010, 7:09 PM
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Blue fox
Joined on 04-18-2008
COLUMBIA, MISSOURI
Posts 1,533
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Re: It's Alive!!!!!! and I have a few questions
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Bob, Glad to hear that it is alive. There isn't really grease inside the tach, but when assembled, they put a dab of grease on the gears. Over time this can migrate to the rotating drums and cause things to hang up. There is no good way to clean them without opening up the case by uncrimping or cutting the chrome band.
Another possibility that you don't really want to hear is that the flat tab on the end of the worm screw in the tach drive may have sheered off and is only contacting the shaft by friction. I have a GL500 that I have changed everything but the tach drive on, and it will not register the right RPM's. The only thing left to do is swap out the drive. But, fairing, radiator, fan, and afternoon naps all have to be taken first. I can disconnect the cable at the tach head and actually hold the inner cable from spining with my fingers. Careful if you try this, just use you fingers and not a cloth or pliers, if that isn't the problem, it soon will be.
Keep us informed on your progress.
Blue Fox
1983 GL650I, 79-CX500C, 1980 CX500C, 82-GL500I, 82-GL1100, 76-CB550, 81-CB750C, 73-CB350F, 71-CT90,
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03-11-2010, 4:50 PM
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MX503
Joined on 12-30-2009
Kansas City, MO. area
Posts 48
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Re: It's Alive!!!!!! and I have a few questions
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The Spitfires arrived today and the wheel bearings and All Balls tapered head bearings as well. So I hope to have those installed by Tuesday. I have waited to order a new brake line and will get that done by the morning. So I still have quite a bit left to do but it's all coming together pretty well.
1979 CX500 Standard 3100 miles
"Life is short. Enjoy it here on earth keeping in mind the greater goal".
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03-11-2010, 7:26 PM
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Harold
Joined on 12-28-2006
Beside Washademoak Lake, N.B. Canada
Posts 851
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Re: It's Alive!!!!!! and I have a few questions
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| MX503 wrote: | Thanks guys for the help. My initial observation about the bike is it feels a little underpowered although it runs good. I thought it would have more torque but without a working tach, it's all seat of the pants right now. I would imagine the 650 has a lot more power.
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"Underpowered" is not a common adjective used to describe a CX. 
"People are more violently opposed to fur than leather because it's safer to harass rich women than biker gangs."
1978 CX500
1980 CX500 Custom
1981 CX500 Custom
1982 GL500 Silverwing
1975 XL-100
http://www.myspace.com/downwiththebutterfly
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03-11-2010, 9:25 PM
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marshallf3
Joined on 01-12-2009
Oklahoma City
Posts 1,530
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Re: It's Alive!!!!!! and I have a few questions
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"I thought it would have more torque but without a working tach, it's all seat of the pants right now. I would imagine the 650 has a lot more power."
You're either used to something QUITE larger or you need the carbs done.
1979 CX500C
░░░░░░░
96 & 98 GTP, 78 Chevy G30 400V8, 78 Gremlin 304V8, 65 Barracuda 273V8
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Honda CX500 & G... » CX500 GL500 Tra... » General Discuss... » It's Alive!!!!!! and I have a few questions
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