Yamaha 2003 Royal Star Venture Owner's Manual download pdf (Page 92)

PERIODIC MAINTENANCE AND MINOR REPAIR

7-11

To install the panel

1. Place the panel in the original po-

sition, and then install the screw.

2. Install the passenger footrest by

installing the bolts.

EAU03329

Checking the spark plugs

The spark plugs are important engine

components, which are easy to check.

Since heat and deposits will cause any

spark plug to slowly erode, the spark

plugs should be removed and checked

in accordance with the periodic mainte-

nance and lubrication chart. In addition,

the condition of the spark plugs can re-

veal the condition of the engine.

To remove a spark plug

1. Remove the spark plug cap.

2. Remove the spark plug as shown,

with the spark plug wrench includ-

ed in the owner’s tool kit.

To check the spark plugs

1. Check that the porcelain insulator

around the center electrode on

each spark plug is a medium-to-

light tan (the ideal color when the

motorcycle is ridden normally).

2. Check that all spark plugs installed

in the engine have the same color.

1. Spark plug cap 1. Spark plug wrench

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Yamaha 2003 Royal Star Venture Owner's Manual Page 92