Do you mean something like is discussed in these threads ?

http://www.peachparts.com/shopforum/showthread.php?t=82128&highlight=preoiler

http://www.peachparts.com/shopforum/showthread.php?t=86683&highlight=preoiler

http://www.peachparts.com/shopforum/showthread.php?t=30691&highlight=preoiler