Question about 1982 Honda CX 500 B

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My 1980 honda cx500 brake lever gives no pressure for the first 75% and a weak grip after that. how do I fix it?

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It sounds as if there is air in the brake line. Bleed the brake line.

Posted on Aug 05, 2010


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1 Answer

I need carburetor help for a 1980 Honda CX500.

For parts the best place to look is David Silver Spares, if they don't have it then there is a good chance it isn't available. To synchronise the carbs you will a set of vacuum gauges. They aren't expensive and they come with instructions.

Aug 22, 2012 | Honda Motorcycles

1 Answer

I have rebuilt the calipers new seals and pistons plus the master cylinders and i cant get to work bled them still no brakes any ideas

Hi, this will be air in the system which needs to be bled out, after a rebuild the air can become traped.the first thing you need to do is make sure you remove the air from the master cylinder end, tou will need a brake hose clamp, if you dont have one you can use 2 small sockets between a pair of grip jaws, clamp the hose as close as you can to the mastercylinder, now pull the lever and feel for pressure, next undo both bleed nipples with a pipe fitted to catch the fluid, with the nipples open slightly release the pressure on the grips pull in the lever all the way, but dont release the lever until you have re applied the pressure to the grips, this will ensure you dont let air back into the mastercylinder, so its release grips pull lever in , reclamp grips release lever, repeat this a couple of times then leave clamped, now when you pull lever it should be solid, if so you have removed all the air from the master cylinder, making sure you keep the fluid level toped up at all times, you can now continue this process closing off one nipple and forcing out the air, repeate on other side till all air is removed, you may then wish to bleed as usual to finnish off, this task should only be used if the machine still has the original rubber brake lines fitted, good luck

Sep 11, 2011 | 1986 Honda GL 1200 Aspencade Gold Wing

1 Answer

Need to know torque settings for honda cx500 motorbike head 1980 model

from the honda service manual head torque kg-m 5.0 - 5.5
ft-lb 36 - 40

Apr 26, 2010 | 1980 Honda CX 500 A

2 Answers

I can't seem to find a repair manual on the web for a 1980 Honda CX500 custom

library has manuals sec629-u can use similar books like the 650 or different *** makes since the tech is often close-all depends how involved it gets

Mar 11, 2010 | 1980 Honda CX 500 A

1 Answer

The Speedo on my CX500 stopped working. What are my best options? Complete replacement or are there weak points that should be addressed first?

make sure cable isn't broke inside housing,check cable conn. at wheel to make sure it's clean lubed and working smoothly, last, check speedo itself, same thing, smooth, no binding, replace any badly worn or binding parts

Feb 01, 2010 | 1980 Honda CX 500 A

1 Answer

1980 honda cx500 custom, when traveling at 55 mph and you want to go faster , it just flatlines and will not increase in speed, also the right plug gets black with oil after a couple of miles. the carbs...

Do a compression test on the bike if the psi in any cylider is below 100 psi the motor needs a ring job or valve job or both, the way to determine which engine component is weak (a leaking valve or worn piston rings) is as follows with an oil can squirt 2 or 3 times into the low pressure cylinder after noting the dry compression reading with no oil, if the compression reading increases more than 10 psi it is worn piston rings if the reading hardly changes at all it is a burnt vavle. If compression checks out ok the problem is either weak spark for that cylinder with the black plug or excessive gas or flooding from the carb.

Aug 14, 2009 | 1980 Honda CX 500 B

1 Answer

'80 cx500 - no spark

Then you need to check the electrical system.
Have a look in the honda common service manual.

and for advice on testing the circuit see here>>>

May 16, 2009 | 1980 Honda CX 500 A

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