15
#8.
Left side drive:
Routinely pack grease in the shaft hole behind 10T sprocket and also in cover
bushing hole. This will also help deduce noise.
SkyHawk Engine ID plates:
General Information
Obey all traffic regulations. Always wear a helmet while riding. Remember that you are riding a motorized
bicycle and other traffic may not be able to see you. Never operate your motorized bicycle on a pedestrian
through way or sidewalk while the engine is operating. Never operate your motorized bicycle in an unsafe
manner.
Check local and state laws before riding on streets & wear a helmet.
ENGINE STARTING & OPERATION PROCEDURE
IMPORTANT: PLEASE READ THIS: Gas and Oil Mixture for Fuel ratio
The engine is a 2 cycle design, therefore, a gasoline/oil mixture is necessary. During the break-in period (1
st
gallon of fuel), the ratio is 18 parts gasoline to 1 part 2 cycle oil. After the break-in period, the ratio is
increased to 25 parts gasoline to 1 part oil. The engine crankshaft bearings are lubricated from the oil in the
gas mix. A rich break in mixture ensures bearings will not cease.
!WARNING!
Remember safety
first: Wipe up any spilled fuel. NEVER fuel a hot engine or light a cigarette while fueling. This could
result in sudden fire, personal injury. Always move your motorized bike at least 10 feet from any
fueling area before attempting to start it. Never leave the tank fuel cap off after fueling as rain water
will contaminate the fuel and cause engine failure.
Step #1.
After filling tank with the correct oil/gas mix open the tank fuel valve. Fuel line is in the open
position when the small lever is pointed down.
Move choke lever to the on position
. This is the small lever
at the end of the choke cable
All the way Up the choke is on. All the way Down the choke is off.
Move
progressively downward to off position during engine warm up period.
Engine Starting procedure for Lever Clutch Models:
1.
Pull the handlebar clutch lever inward, to disengage the engine from the rear wheel.
2.
Pedal; (down hill if possible for first start)
3.
A mid frame or rear wheel bike stand is helpful to start the engine in place.
4.
Let out the clutch lever all the way out and continuing to pedal. The result is a direct engine hook up
via the friction clutch with the rear wheel via chain and sprocket. The engine will now start
spinning, Pedal until motor starts. Accelerate slowly at first..
5.
Twist throttle to increase speed, reverse twist throttle to decrease speed. To stop,
disengage clutch and apply brakes. To accelerate, pedal and release clutch while opening throttle.
6. Adjust choke to the smoothest engine running position.
7.
After warm up push choke lever all the way down.
If engine races too fast, or too slow,
pull clutch lever and lock in the notched catch, stop and adjust engine rpm.
8. If the rpm needs adjusting, turn the idle adjust screw (left side of carburetor) in or out
slowly to obtain the proper idle speed of about 1400 rpm +/- 100 rpm
To correctly break the engine in, Do not exceed 15 mph or 30 min. continual running
for the first 50 miles during engine brake in.
Engine will develop more power after break in.
9. To stop the engine, push Kill switch and turn off gas valve at tank. Turning off the gas will prevent
fuel from being siphoned from tank.
Warning Note:
Never leave the tank gas valve in “open” position”
when engine is not running or the bike is in storage.
10. After or before each ride check all mounting fasteners, including hd. Bolts, axle and brakes.
11. Warning Note:
Engine lock up or piston seizure due to improper gas / oil mixture will not be
