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Join Date: Nov 2007
Location: Chandler, Arizona
"And, I would not let the bike idle 10 minutess to start with... You might just be fouling your plugs." This one I have to disagree with. It will not foul the plugs unless you leave the choke on too long. I have been doing this for 150,000 miles on Vulcan 750s, and never had problems with the plugs. I let it run on the stand until the needle on the temp gauge reaches that second mark from the far left, but I turn the choke off as soon as it will idle without it. Once the needle has reached that mark, it should respond normally to throttle. If not, it is most likely due to dirty carbs. You can try soaking them in Seafoam on the bike first, if that doesn't work, it's time to pull the carbs, take them apart, and give them a thorough cleaning. I would NOT use keytone based automotive carb cleaner in motorcycle carbs, except to clean them after they have been disassembled and all rubber and plastic parts have been removed. It can damage these parts.
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