How do I check the oil level on a 2003 Yamaha 1100 V-star Silverado Classic

SOURCE: 2002 Yamaha V-Star Classic 1100 Will not run over 70 MPH

Hi,
The first thing you need to check is the air filter. Sometimes critters can get into the airbox when a bike sits for awhile. Sounds crazy, but it has happened to me. If nothing is blocking the filter, give it a quick clean since you have it out.
Next things to check:
Faulty diaphragm
Improperly adjusted fuel level
Clogged or loose main jet
Faulty fuel pump
You may not be able to check these on your own, but these are the next likely culprits.
Hope this helped

SOURCE: Locating Oil Filter

i think its on the front of the motor. directly above the drain plug. maybe behind a finned cover?

or go here for a free pdf service manual
http://www.carlsalter.com/motorcycle-manuals.asp

SOURCE: where is the oil filter on my yamaha V-star 1100

On the right side of the bike (right side when ou are sitting on it) just above the rear brake lever behind a small circular plate. remove the plate and the oil filter is inside (you will easily see it). Warning---on these bikes you have to drop the front exhaust header and right floor board in order to change the oil filter unless you install a after market oil filter relocation kit. If you plan on changing your own oil it is highly recommended to install this relocation kit.

SOURCE: how do you replace the spark plugs on a 2004 Yamaha Siverado 1100

Lift the back of the tank up and prop it up. Remove the chrome beauty covers, find spark plug wires and remove. Blow out with air first. Chaz Moto DC

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SOURCE: how much oil goes in 2000 yamaha 1100 v-star

oil completely drained;engine dry-3.8 us qt.
if using iol filter relocation kit add 0.2 us qt extra.
run engine upto operating temperature,switch engine off,wait 5 mins then check level in inspection window;should be between uer & lower levels.