Motorcycle Repair: Above idle issue, 1979 honda cb650, mixture settings

Question
Chris,
 I have a 1979 Honda CB650 that sat for about 8 years before I aquired it about two weeks ago. My issue is I pulled the carb assembly off the bike and cleaned them out. The float bowl, and main jets were pretty gummed up but after about 3 cans of carb cleaner the carbs now flow fluid and air through all of the passages. I reinstalled the carb package and after using some life support (starting fluid), the bike now starts and is steady at idle. The problem is as soon as I give the bike some gas it dies. I assumed that it was an issue with the jets or passages, so the carb assembly came back off to get cleaned again. This time I went a bit further into the carbs and can now say that they are as clean as they ever will be. I reinstalled them again and still have the same problem. Just to give you a more well rounded picture... the tank was coated and filled with new 91 octane gas, there is a bright spark on all four cylinders, the electrics all check out fine, and the oil, and oil and air filter were changed. Any help with this issue would be great as I have run out of ideas. Thank you.
Robert

Answer
Hi Robert.

 Are the carbs synchronized properly?  It sounds as if they may not be.

 Another possibility is that, while cleaning the carbs, if you removed the jets (I hope that you didn't), then the mixture is all wrong and the bike is running either too lean or too rich.

 If you did not change the mixture settings, then there is the possibility that the carbs are still not cleaned out and there is still some varnish in the jets.  If this is the case, then try pouring a bottle of fuel treatment (the type made with jet fuel - STP is best) into the tank and running it for a bit.

Let me know what you find.

Good luck and ride safe.
FALCON