Question about 1979 Honda CX 500 A

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No power i have a 1979 honda cx500 street bike. i only have power to my radio and no where else. could this be just a short or somting else?

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I guess you have to check the wiring starting from the battery to the fuse box right to the ignition switch , sometimes wires snap at around the steering column and due to the age of yr bike porbabley some wires may have snapped around there at the lower triple tree.
Hope this helps.

Posted on May 22, 2009

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Remove the back tire from the frame of a 1979 honda cx500

Hi,if you have standard exurst you may have to take one of the silencers out so to get the spindle out once undone,take locking pin out undo locking nut,take washer off,then push spindle out and pull wheele off,
this maybe called a pig but are verry well designed so are verry easy to work on,one of the best courier bikes I ever worked with.
hope this was some help.

Mar 26, 2015 | 1979 Honda CX 500 A

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1979 cx500 wont go over 5500 RPM.....seems like its governed?

the air flow is change,and changes many other things too.
see also airfilters are clean,good oil frech.hows compretion from cilinder
how are the sparkplugs,whits color do they are good not to low.try to restore to the original.always the can never get any car or bike better then factory.there are many books to find.maybe this one has rpm security contact.

Jul 26, 2012 | 1979 Honda CX 500 A

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1979 honda cx500 only runs on one cylinder! I have good spark and feeding it fuel and still wont run !so I'm totally lost on what to do please help???

If you are sure that the idle jet in that carb is clear (spark plug getting wet is a good quick indicator) then I would check the valve clearances as they would be the most likely problem.

If they are o.k. then do a compression test...

Apr 26, 2012 | 1979 Honda CX 500 B

1 Answer

I have a 1979 honda cx500 i just fill the tank at the gas station started it then went about 200 ft before it started spitting and sputering then stopped working and now it won't start any suggestions...

You have got a load of bad fuel, either dirt or water. Check the contents of your fuel tank and clean it out. Remove the fuel tap and clean the filter. You will also have to clean out the carbs.

May 06, 2011 | 1979 Honda CX 500 A

1 Answer

Why does my motorcycle stall when i slow down and dies when im riding normal speed after like 15 sec into the ride and it doesnt seem like its getting all of its power when u gag on throttle

Your fuel petcock (on/off tap) may be restricting fuel flow and the carbies may need to be cleaned.
To maximise fuel flow thru a dirty fuel filter or restricted fuel flow thru a contaminated carby jet, disconnect fuel hose from tank and drain remaining fuel in carbies into a glass and inspect for contaminates. Take off float bowls and spray ($8 retail 400g aerosol spraycan carby cleaner) cleaner down fuel line/hose until it pours out of carbies. Allow to evaporate. Replace fuel filter (there may be a cylinder of white mesh gause inside of fuel hose) and check bottom of tank for rust, scale or debris. Try fresh fuel, new sparkplugs (0.8mm gap) and ensure choke is functioning correctly. Check camchain tensioner is not loose. Keep battery fully charged, replace if the bike can't achieve this when running with no lights.. This link will give you diagrams to help you out.

May 08, 2010 | 1979 Honda CX 500 A

1 Answer

1979 CX500. When you push the start button why does light dim

The starter button when pushed in half way turns the power off to the lights so more electricity can be used for powering the ignition and starter at the same time. If you press lightly you can turn off the lights with out engaging the starter. Pressing all the way down engages the starter. The button is a two position switch. Carefully take it apart , clean it and put it back together and you may fix the problem.I have three old Honda motorcycles that all have right hand switch assemblies wired to them from other bikes (Because the original was no longer available) You should be able to rewire any Honda two cable switch too work on your bike.

May 06, 2010 | 1979 Honda CX 500 A

1 Answer

I have a 1980 Honda cx 500. It runs great, but it does make a noise while in gear. It sounds like something is winding up as speed increases and winding down as speed decreases. When I put it in neutral...

Perhaps you got one of the new Honda 1980 Tech where they are using a Turbo to gain HP(Kw). It is a white elephant but a technology experiment. Bike too heavy for turbo, not very agile. Google CX500 and read it's review in NZ Bikers magazine 2010 March edition.

Mar 26, 2010 | 1979 Honda CX 500 A

1 Answer

How to set timming on a 2003 Honda XR80 dirt bike?

This is the closest manual to your bike I can find.
As you can see, it covers from 1979 - 2003 - Honda rarely change their engine configurations when they make something that works.
This manual was probably last printed in 2003 - and later year bikes just added updated pages (Honda does that quite often to save on re-printing new manuals).
The XL model is exactly the same as the XR, except the XL has additional components to make it street legal - battery, head light, tail light, turn signals, horn and street legal tires

Mar 20, 2009 | 2003 Honda XR 125 L

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