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Join Date: Nov 2007
Location: Chandler, Arizona
Using the choke (the enrichener circuit on the Vulcan) when it is not necessary can wash some of the oil off the cylinder walls, resulting in excessive engine wear. That's why I turn it off as soon as the engine will run with out it. But, considering the extremely long life of the VN750 engine, most riders would never notice it. But as for whether the compression actually drops measurably, I doubt it.
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