Questions & Answers for: Honda CX 500 B carb problems

Question about 1981 CX 500 B

1 Answer

...only fires on 1 cylinder won,t run on left cylinder ,good spark but lack of fuel,have stripped carbs but i,m new to this ,not sure which screw does what any help welcome,i don,t have a manual so ...

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...This sounds like the main jets are varnished up and possibly the float(s) are sticking. Pull the carbs off the bike and clean them with carb cleaner. Remount the carbs then balance and sync them. ...

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...will not increase in speed, also the right plug gets black with oil after a couple of miles. the carbs have been rebuilt and worked on . the cycle has 23,000 miles on it, otherwise it runs good. ...

Question about 1985 CX 500 B

1 Answer

...a few seconds it runs smoothly until about 30 seconds and then it runs lumpy again. I cleaned the carbs out 3 times and changed the spark plug, but same thing. I notice that the rectifier is really ...

...problems. The main one being that she looses power - at full throttle she only goes at about 80kph. One of the spark plugs had black deposits, as I understand, a problem with air/fuel mix. I have ...

Question about 1982 CX 500 B

1 Answer

bike won't stay running getting gas to carbs but the bike won't fire unless you squirt some directly into carbs. Wondering if problem could a vacum issue. Or maybe plugged jets? The carb jets are ...

Question about 1982 CX 500 B

1 Answer

persistant problem of one carb flooding carb cleaned several times new needle valve fitted what now? Drain your tank and take off the fuel tank petcock. Look to see if the fuel filter is still ...

...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 ...

it turns over but wont start and it is getting spark Is it getting fuel? Are the plugs wet when you remove them after trying to start it? It could be the Diaphragms in the carbs, they are made of ...

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