Question about 1979 Honda CX 500 A

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1981 cx500 sputters with open throttle idles ok

Cleaned both carbs but neither looked overly dirty. When on full choke and cold runs super which leads me to believe it is a fuel problem.

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6ya6ya
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Posted on Jan 02, 2017

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  • 48 Answers

SOURCE: will only run with full choke and absolutely no throttle.

Carbs gummed up. Need a serious cleaning or a full ruubers replacement/rebuild kit. Gas turns to gummy when left stting in the fuel bowls.

Use a couple of cans of Sea Foam.. best stuff in the world.

Posted on Mar 20, 2009

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freetek
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SOURCE: bike wont run when choke is at half way setting

Sounds a lot like fouled fuel jets in your carb; you may have a little work to do.
If the jets do not allow sufficient fuel to pass, using the choke can 'cheat' the carburetor by restricting the flow of air and restoring the fuel-air ratio. You can't ignore this problem since the 'cheated' condition does not let the engine develop the power for which it was designed.    

Posted on Apr 26, 2009

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SOURCE: starts and stays running with choke on. stalls

Pay special attention to the parts in red. DO NOT mix parts from the front carb with parts from the back carb. When removing adjuster screws and jets, count the number of turns to remove them, write it down, and replace with the same number of turns.

Go to the site below where you can see a parts diagram for your specific bike. You will select the actual brand, year, model, etc., once you go to the site. Part numbers and prices are also shown. You can order parts from this site. In the event no price is shown on a particular part, the part is not in stock. www.babbittsonline.com/pages/parts/viewbybrandand/parts.aspx

Go to this site and you can download a free PDF service manual.
www.carlsalter.com/motorcycle-manuals.asp Most all of the manuals are in English but some are not. There is no way to be sure without doing the download. You can always delete it if in a foreign language.
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Posted on Jul 02, 2009

  • 3567 Answers

SOURCE: 1981 gl1100 has 4 keihin carbs bike sat 7 years

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648d54b.gifWhen removing the pilot jet screw, count the number of turns to remove. Put the screw back the same number of turns then unscrew 1/4 turn.
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Posted on Jul 02, 2009

REDOIL
  • 355 Answers

SOURCE: valkyrie has a pop in the exhaust at idle..on #1

well i would start buy checking for vacumm leak at carbs and at exhaust system can do this to most check all rubber seal for cracks and things like that hope this helps

Posted on Feb 08, 2010

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