Checking The Spark Plug - Yamaha CRYPTON T110C Owner's Manual

To install the panel
1. Insert the projection into the slot,
and then slide the panel forward.
1
1. Slot
2. Projection
2. Place the panel in its original posi-
tion, and then install the screw.
PERIODIC MAINTENANCE AND ADJUSTMENT

Checking the spark plug

The spark plug is an important engine
component, which is easy to check.
2 Since heat and deposits will cause any
spark plug to slowly erode, the spark
plug should be removed and checked
in accordance with the periodic mainte-
nance and lubrication chart. In addition,
the condition of the spark plug can re-
veal the condition of the engine.
To remove the spark plug
1. Remove the spark plug cap.
1
1. Spark plug cap
2. Remove the spark plug as shown,
with the spark plug wrench includ-
ed in the owner's tool kit.
6-7
EAU19603
1. Spark plug wrench
To check the spark plug
1. Check that the porcelain insulator
around the center electrode of the
spark plug is a medium-to-light tan
(the ideal color when the vehicle is
ridden normally).
TIP
If the spark plug shows a distinctly dif-
ferent color, the engine could be oper-
ating improperly. Do not attempt to
diagnose such problems yourself. In-
stead, have a Yamaha dealer check
the vehicle.
1
6