Protek Samurai 321B Instruction Manual page 11

T R O U B L E S H O O T I N G
S Y M P T O M : E N G I N E F I R E S I N T E R M I T T E N T LY
B U T D O E S N O T R U N
Cause
Insufficient fuel in the tank.
Deteriorated glow plug.
Clogged fuel filter.
Air cleaner or internal silencer are dirty.
Engine is over heated.
Incorrect clutch release.
Glow plug battery disconnected too soon.
Vibration causing air bubbles in fuel.
S Y M P T O M : U N S TA B L E I D L E
Cause
Incorrect glow plug.
Unsuitable fuel.
Extremely light flywheel.
When the engine is cold.
Silencer or manifold are not securely
connected or are disconnected.
27
Corrective Action
Near TDC
Fill the tank with fuel.
Replace glow plug.
Clean or replace fuel filter.
Replace air cleaner element and clean
inside silencer.
Piston
Wait until engine is cool.
Cylinder Liner
Adjust the tension of the clutch spring.
Wait until RPM becomes stable before
Near TDC
disconnecting plug battery.
Install o-rings to the fuel tank screws to
Crankshaft
prevent bubbles.
Slight taper
Piston
Cylinder Liner
Corrective Action
Cylinder Liner
Use the glow plug recommended in the
Cylinder Liner
instructions.
Do not use extremely high nitro or low oil
Crankshaft
Crankshaft
content fuel.
Slight taper
Add heavier flywheel.
Slight taper
When the engine is hot.
Replace seal ring.
Check and secure the system.
Rotate the retainer
nut gently until it stops
When the engine is cold.
R E Q U I R E D I T E M S &
B A S I C E N G I N E PA R T S
The following items are required to operate the engine.
FUEL
The user should only use high quality fuel for two stroke glow type
engines that contains 10-30% nitromethane. Fuel with 20% nitro
content is recommended for break in. Then, change to a fuel with a
higher nitro content later if desired. When the brand of fuel is changed,
or the nitro content is increased, it is advisable to repeat a short break
in procedure referred to in the BREAKING IN section. Please note that
high nitro content fuels produce more power at the expense of reduced
engine life. This will also shorten the life of the glow plug element.
Model engine fuel is poisonous. Do not allow it to come into contact with
the eyes or mouth. Always store it in a clearly marked container and out of
the reach of children. Wash hands after use.
Near TDC
Model engine fuel is highly flammable. Keep away from open flames,
excessive heat, sparks, or anything else that could ignite it. Do not smoke
or allow anyone else to smoke near it.
Near TDC
F U E L F I LT E R
Piston
Install the filter in the fuel line between the fuel tank and the
carburetor to prevent dust from entering the carburetor.
Piston
G L O W P L U G I G N I T E R
Commercially available, a glow plug igniter is a handy tool
that uses an integrated battery to heat the glow plug.
Recommended: PTK-7605 - ProTek R/C "SureStart" Rechargeable
Crankshaft
Glow Ignitor w/Charger (2100mAh NiMH)
Slight taper
O-Ring
S TA R T E R B O X
Glowplug
Used to start the engine.
Glowplug
Recommended: PTK-4500 - ProTek R/C SureStart 1/8 Off-Road
Starter Box
Tighten a further
120º - 180º
When the engine is hot.
Element glows when energized
W A R N I N G
Near TDC
Near TDC
Piston
Piston
Cylinder Liner
Cylinder Liner
Crankshaft
Crankshaft
Slight taper
Slight taper
When the engine is cold.
When the engine is hot.
O-Ring
When the engine is cold. When the engine is hot.
O-Ring
Rotate the retainer
Rotate the retainer
nut gently until it stops
nut gently until it stops
Tighten a further
Tighten a further
120º - 180º
120º - 180º
Exhaust
Exhaust Close
Gasket
Close
Gasket Turn the high speed needle clockwise
Turn the high speed needle clockwise
until it stops. This is the fully closed
until it stops. This is the fully closed O-Ring
position. Do not force it to turn further.
position. Do not force it to turn further.
Open
Retaining Screw Open
approx 0.5mm
O-Ring
approx 0.5mm
Pliers
O-Ring
O-Ring
Hig
Retaining Screw
Retaining Screw
Nee
(Ne
Dirt and dust may lodge in ma
Dirt and dust may lodge in ma
Mid
(Mi
High Speed
High Speed
Needle
Needle
08