Members who have donated towards server costs
Join Date: Nov 2007
Location: Chandler, Arizona
For new owners
If you have recently purchased a Vulcan 750, welcome. It is a great bike. But it does have a few issues. Two of these issues are far more critical than the rest. Not taking care of them can cause SERIOUS damage to your bike. First of all, LUBE THE SPLINES!!! This cannot be said enough. Do not ride the bike until you have lubed the splines. The Vulcan 750 specifically is very prone to final drive failure if the drive splines are not kept lubed on a regular basis, and the damage is severe and expensive. Repairing it with new parts can cost more than the bike may be worth. No matter what other things may be wrong, DO THE SPLINES FIRST. Hopefully they are not already seriously damaged from the neglect of a former owner.
The second thing is the cam chain tensioners. They are guaranteed to fail on the Vulcan 750, and when they do, it can cause SERIOUS damage to the engine. If your engine seems to be making to much mechanical noise, especially if it tends to quiet down after the bike warms up, most likely you tensioners have FAILED. Look up the "Grambo trick" on the forum and do it. If the engine suddenly gets a lot quieter, that confirms your tensioners have FAILED. Again, if you just bought the bike, all you can do is hope the damage is not severe YET. It doesn't take long. You will need to either replace the tensioners with new oem ones, which seem to last about 10,000 miles, or get new TOC manual tensioners, which last forever. I have over 40,000 miles on the manual tensioners with no problems. But you do need to do something. A loose cam chain will wreak havoc in the engine. OEM tensioners are not repairable, so they will need to be replaced. Again, do not ride the bike in this condition, don't even run the engine.
I posted this because I have recently heard about to many bikes damaged by the above problems. Some may think I am making too much of a big deal out of this, but it is absolutely CRITICAL. If this post saves even one bike, it's worth 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