If you're looking for the people with the most experience on these bikes try the Suzuki Marauder/Intruder Group at migcruisers.com
Takes a bit to learn how to navigate, but once you hit up the forums you'll find these guys know all the details.
BTW, I doubt it has 14cc more. I think someone rounded up to the nearest whole cubic inch (rounded up to 50 cubic inches), which translated into cc (a smaller more precise unit of measurement) gave that extra 14cc. I owned a 2004 VZ-800 (now M50) briefly, these are and have always been 805cc engines as far as I know.
When you're ready to buy the service manual let me know.
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