Zenoah G231PUM Owner's Service Manual page 6

5. Fuel
• Mix gasoline (octane over 90) and high grade 2 cycle engine oil (mixing use type;
JASO: FC grade or ISO: EGC grade) at mixing ratio 25~40:1.
• The mixing ratio is according to the oil recommendation.
[ NOTE ]
1) Gasoline may contain maximum of 10% Ethanol (grain alcohol) or up to 15% MTBE
(Methyl tertiary-butyl ether).
Gasoline containing Methanol (Wood Alcohol) is NOT approved.
2) Gasoline is very flammable. Avoid smoking, bringing any fires near fuel.
3) To prevent all possible problems on fueling system, make sure to use the fuel filter
which has more than 300 mesh or equivalent and gasoline proof rubber pipe or
equivalent.
Incorrect fuel filter use causes engine trouble like carburetor's fuel passage stuffing
or piston surface scratching etc.
6. Starting
6.1
G260PU
A: HAND FLIP START
Since the G260PU is equipped with the ultra compact C.D.I. type flywheel magneto
ignition system, it should be started according to the following procedure;
✽ The magneto system of G260PU is designed in such a way that when the exhaust
port is closed by the piston, that is, when the compression stroke starts (Refer to
Fig.2-A), sparks are never produced on spark plug no matter how fast the propeller
may be flipped. Be sure to quickly flip the propeller when the edge of magnet on the
rotor is approaching the coil (Fig.2-B). It means that the propeller should be quickly
flipped about 90 degrees in crank angle before the compression is about to start.
6
Fig.2-A
Coil
Magnet
Fig.2-B