CYLINDER
HEAD
COMBUSnDN
CHAMBER
PISTON
TRANSFER
PORT
INTAKE
PORT
CONNECTmG
ROD
THE TW~TROKE ENGINE
The power center of your bike. Simpler
and more powerful than 4-stroke engines,
two-stroke engines require high-quality
pre-mix oils for optimum performance and
longer life.
TW~TROKE LUBRICATION
All two-stroke moving engine parts require
constant lubrication to
reduce friction and wear.
Lubrication is accomplished I"'_j~~~~
by burning a mixture of
two-stroke oil and fuel that
is carried through the crankcase. lubricating the
crankshaft. rod, pin and
cylinder wall.
Without proper lubrication,
engine wear and engine
seizure are inevitable. Only
PJ1 Goldfire Premix oils
have been scientifically
IGNITION
formulated from the ground up ...for each
RPM/application. to provide a superior protective lubrication barrier that won't burn
or wear off when used according to
manufacturer's specifications.
What to look for in a two-stroke
pre-mix oil.
• Clean burning to avoid
spark plug fouling and
• gummy engine deposits~E~~:[1
High film s1rength to
reduce friction'and
increase horsepower
and engine life.
• Consistent viscosity and
formulation for predictable performance... even
with different gasolines.
• Formulation to fit
different riding purposes.
EXHAUST"
i.e.• small engines like
TRANSFER
scooters require dltterent lubrication
than high RPM race engines.
PJI offers three different pre-mix oils to cover '
all two-stroke RPM/applicationa:
• Injection/Premix for general, all .
purpose uses such as scooters and
other low RPM engines.
• Goldfire Premix for medium size .
engines, dirt bikes, ATV, motocross, and
enduro riders.
• Goldfire Pro is the ultimate for high RPM
motocross and road racing engines.
