12
B)
After installing cable inside the carburetor mount it on engine intake tube and tighten clamp screw.
Mount engine so carburetor sets as level as possible.
1.
Note:
Factory Sealed
Air /Fuel
ratio screw. Factory set by turning adjustment screw to closed
position and then opened ¾ turns outward or less than 1 full turn before it was sealed with epoxy.
2.
Jet Needle: Carb. comes with clip set in position #2 from the top. Different positions may be
required to make your engine run correctly depending on altitude above sea level and fuel economy
desired. If a more rich gas mixture is required you can move the jet pin “pac man” clip to the next
lower position notch.
Fuel Tank installation
A)
Attach fuel petcock to tank. Use Teflon tape to seal threads. Careful not to strip threads.
B)
Mount tank on bike top crossover frame with two supplied brackets and nuts.
C)
Attach fuel line from tank to carburetor. Best to use USA made fuel line like GoodYear SAE 30-7
4.8mm obtained from local automotive stores like AutoZone. Factory supplied clear plastic line gets
hard over a period of time.
*NOTE:
Filters are contained in the petcock and in the carburetor inlet. If
engine runs poorly clean the valve filter as residue from the tank may have clogged it.. It is highly
recommend that a tank liner coating be applied inside the tank before installation. This product is called
Kreme and is available from motorcycle dealers;
D)
Good idea to use a rubber strip
to cushion tank on frame top
tube.
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 16 to 18 parts gasoline to 1 part oil. After the break-in period, the ratio can
increased to 25 parts gasoline to 1 part oil.
*NOTE:
Synthetic 2 Stroke Oil
can also be used to insure
proper engine lubrication. Consult your WD dealer for his recommendations for your country and area.
!WARNING!
Remember safety first: Wipe up any spilled fuel. NEVER fuel a hot engine or
smoke 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.
MAINTENANCE SECTION
# 1. How to Adjust Clutch if signs of slipping or squealing are encountered:
A)
Disengage the clutch by pulling handle bar clutch cable lever inward and push the lock button in.
B)
The bike should now roll easily. Release the clutch lever and bike should slide the rear wheel.
C)
If the rear wheel does not slide when the lever is released this means the clutch needs adjusting.
D)
Remove the clutch cover and then remove the locking screw that holds the Clutch Adjusting Nut.
E)
Pull the clutch lever arm on left side of engine inward. Back off the Clutch Adjust Nut ½ turn CCW.
F)
Release clutch lever arm and check for 1/16” slight clutch arm free-play.
G)
H)
Readjust *Clutch Adjust Nut as required to get the required 1/6” clutch arm free play.
I)
Now Repeat the
B)
roll test. Rear wheel should now slide when the handlebar lever is released.
J)
Be sure to re-install the small locking screw in outer edge of *Clutch Adjust Nut.
G)
Good idea to place a small gob of grease at gear mesh area. Use grease sparingly! Then replace cover.
H
) Squirt light grade oil down clutch cable sheathing to reduce friction and make for easy lever pull.
