varies 2 of ignition angle) . If it is felt in operation that ignition is in delay
too much. rotate the distributor clockwise, and tighten the pressing nut
after adjustment.
4.5 Carburetter Adjusting
T
wo carburetters are used on left and right cylinders (one for each) in operation .
Since two carburetters are used in operation simultanously they must operate in same
state. Otherwise, engine power , fuel consumption, starting performance and low speed
stability will be poorer. So the carburetters should be adjusted one by one . The
adjusting methods are as follows:
4.5.1
Adjusting at idling
4.5.1.1
Start the engine, carry out the following steps after the engine warms up to
normal temperature.
4.5.1.2
Turn outwards throtte twist grip fully home.
4.5.1.3
Screw in the idling adjusting screw (Item 6 in Fig 11) clockwise to raise the
throttle valve, increase slightly the engine RPM so that one cylinder can operate
continuously with throttle at minimum operating state. Remove the high tension cable
from the other cylinder and ground it.
4.5.1.4
Turn slowly idling mixture adjusting screw (Item 5 in Fig 11) to increase the
engine RPM to maximum and to make engine operate stably at that speed.
4.5.1.5
Screw out gradually the idling adjusting screw to reduce the throttle valve to
mininum engine RPM and to keep engine operating stably and continously at that speed.
