Question about 1978 Honda CX 500 A
I have a 1978 honda cx500 and I am building it into a cafe racer I want to put aftermarket chrome cap air filters on it instead of the stock filters. I found the air filters but it gives me like 3 sizes. I need to know what size carbs I have. I can not find anything online about them but jetting them. please help. thanks@
Hi, TJ 28mm for this scenario you will need your service manual, parts fiche, and owners manual if you can't find the best tool you ever bought for your Honda, despair not, for a mere zero $0 you can download another one.
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Posted on Nov 01, 2017
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Posted on Jan 02, 2017
when you put on a new air filter you have to rejet the carb in order for the air/fuel mixture to be correct,because with a aftermarket air filter it is allowing more air in than before and not enough fuel. as the piston speeds up upon exceleration the air is not getting burnt off into exhaust because you do not have enough fuel in the mix
Posted on Jun 03, 2009
SOURCE: hi (.honda cb 400-4)
Were the jets the same size? Just because the numbers were the same does not assure you that someone has not used a jet drill to enlarge them. Pull the low speed jets and compare them with the old ones, using a wire gauge or set of number drills.
Posted on Apr 02, 2010
Check for exhaust leaks that could let cold fresh air into the pipes,test plug wires for ohms resistance, maybe replace plugs.Could it be one of your coils has a crack that only shows itself when chilled?(try to spray silicone on the suspect coil when it is missfires, if this helps stop it fron cutting out replace the coil.(maybe even go back to your prefered jets then) If a relay is weak they can be temperature sensative as well.
Posted on Apr 21, 2010
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