4.4 US qts without changing filter
4.8 US qts w/filter change
This happens if you overfill with oil. Max capacity with a new filter is 6.5 quarts.
The headlight is the only thing different on the Vulcan Classic. The Vulcan 2000 has a projector headlight with a larger housing.
About 50.
Under left hand side cover.
A 2009 Super Sherpa is 1.5 liters. Probably hasn't changed.
On a 2000 1500 Vulcan Classic. It's stamped on the *left* side of the crankcase - on the kickstand side. It's between the frame and the crankcase so you need to view it from an angle; looking from the front. Wipe it clean first and and bring a flashlight...
Its stamped on the sidewall of your tire. Each manufacturer are different p.s.i
The shift pattern on the 2000 Kawasaki 750 Vulcan is one down and five up. It is the common pattern for Kawasaki of the era.
3.4 liters
Look into the space between the exhaust pipes on the right side of the bike at the rear of the engine. The engine number is stamped on the side of the engine block at the bottom. ('09 Vulcan 900 Classic LT) On a 2000 1500 Vulcan Classic. It's stamped on the *left* side of the crankcase - on the kickstand side. It's between the frame and the crankcase so you need to view it from an angle; looking from the front. Wipe it clean first and and bring a flashlight...
Large bikes like a Kawasaki Vulcan 1500, 1600, 2000,
from the manual for a 2000 Vulcan 500, front is 28 psi; the rear is 32 psi when cold (cycle has not been ridden more than one mile during the past 3 hours)