KCS 62CC MANUAL
4
• The KCS ENGINE ignition is designed to spark only when the prop is flipped at a high speed.
If the prop is not turned over at "starting" speed, the ignition will not fire. This helps to prevent
the motor from firing accidentally. Unless you are having problems starting the motor, don’t
bother “testing” the ignition with the plug removed from the cylinder.
• When removing the spark plug caps, PULL STRAIGHT out on the caps.
Do not pull on the
shielded ignition wires and do not use pliers!
To prevent radio interference, the spark
plug caps must have the split retainer ring around the base to insure a tight fit. – DON’T FLY
WITHOUT THEM!
•
Protect the shielded plug wires from rubbing against fiberglass or sharp edges of
wood or metal
. Rubber grommets and plastic “spiral wrap” insulation from automotive or
electronic supply stores work well. Holes in the braided shielding can emit R/F noise or loose
connections (spark plug caps, connectors and switches).
• Timing is set at the factory and should not need adjustment. Contact KCS ENGINE if you
have any questions regarding timing.
• Only use NGK CM-6 spark plugs. Other plugs may not fit the plug caps firmly.
• Plug gap is .018” to .020" (.38 to .50 mm)
• Never operate the ignition without a spark plug in the plug caps! This can permanently
damage the ignition coil.
• Always perform a radio range check before flying. If there are “glitches”, DON’T FLY! Check
for holes in the braided shielding, loose connections, or other radio issues.
Recommended Props
• Always check and
tighten prop bolts
before each flight!
Loose prop bolts allow prop
movement, which will shear the bolts.
• Always use the correct length prop bolts (M5x45).
• Some recommended props are:
2 blade: 24x8, 24x9, 24x10.
Please do not use prop sizes that are smaller than 24x8.
• Smaller diameter props with more pitch, especially 3 blades, can reduce tip speed and noise.
• Always use a drill guide and a bench drill press to drill your props. We normally drill from the
back side first, then again from the front to insure the screws don’t bind in the holes.
• Always check the balance of your prop.
• For safety, we recommend painting the tips of your props (front and back) with a bright color,
especially on black props.
• Never use a damaged or repaired prop, or a prop that has struck the ground or any other
object. Damage that can be hard to see could turn into disaster when turning at thousands of
RPM.