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Join Date: Nov 2007
Location: Chandler, Arizona
First do a compression check. That will confirm or eliminate low compression as a problem. No sense in doing a lot of work for nothing. If the compression is ok, then I would completely disassemble and clean the carbs. If you have never worked on Vulcan 750 carbs before, they are very different than most carbs. They are basically 2 carbs designed as a single assembly, the float chamber is all one piece. I advise against doing the earshave thing, but that's up to you. I have found that reinstalling the carbs with the stock airbox is not as difficult as many say.
I see no way that replacing the cam chain tensioners could possibly have anything to do with the problems you are describing. How did you do the cam chain tensioners? Did you use the TOC tensioners, or did you convert the ACCTs to MCCTs? I highly recommend and use the TOC tensioners.
I am a motorcyclist, NOT a biker.
1997 Vulcan 750, purchased about a week ago
2006 Sportster 1200 Low
2013 Royal Enfield Bullet 500, converted to carb
2001 Yamaha XT225, heavily modified
2004 Honda Rebel 250
1979 Vespa P200E
2002 Vulcan 750 parts bike
1994 Yamaha XT225 parts bike