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Join Date: Nov 2007
Location: Chandler, Arizona
I almost always recommend oem parts. That particular O ring (670-O RING,14MM-670B2014) is only $1.99, and while it may look exactly like what you can find at a hardware store, there will be a minor difference, enough to prevent it from working. The metal elbow that it goes on has a small tab with a hole in it welded on, and there is a bolt that goes through that hole and into the head to hold the elbow in place. If that bolt is loose, it can allow the elbow to wiggle around and leak. If it is missing, the elbow can come out altogether. I recommend using spark plug boot grease when installing the O ring and elbow. It can help prevent the O ring from being damaged from installation.
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