Honda Goldwing GL1200 ©
6
3rd step
The throttle cable is installed. The throttle cable is
attached in the upper groove in the dual spool.
Normally the end cap and retaining nut would be
installed at this point. These items are not shown
in order to improve clarity.
Normal throttle operation
During normal operation of the throttle,
the throttle cable is pulled by twisting the
throttle grip. This pulls on the dual spool
and rotates it, thus pulling the carburettor
cable and opening the carburettors.
Because the roll pin is free to move in the
groove in the actuator spool, this spool
does not move. This reduces friction in
the throttle system and prevents any
possibility of jamming due to cables buckling when being pushed.
Cruise operation
During cruise operation the actuator cable
pulls the actuator spool and rotates it.
The end of the groove contacts the roll pin
in the dual spool, rotating the spool and
pulling the carburettor cable.
When the carburettors open the closing
cable on the carburettors is pulled. This
results in the twist grip rotating once all
the free play is taken out of all the cables.
As a result, the rider will notice the twist grip moving while the cruise is operating.
It is possible to roll the throttle off by hand, thus opposing the cruise control actuator. As this will result in a
loss of speed the cruise control computer will ‘read’ this as the bike going up an incline, and attempt to apply
more throttle. If the twist grip is released again, it is possible for the throttle to go immediately to full throttle.
While the throttle will back off again as soon as the set speed is reached or if the rate of acceleration exceeds the
cruise controls preset rate (1 ~ 2 km/h gain in speed per second), the initial acceleration could be quite violent.
As a result, we do not recommend manually forcing the throttle off while the cruise control is engaged.
Dual spool
Throttle grip cable
Actuator spool does not move
Roll pin in dual spool is free to move
in the groove in the actuator spool
Carburettor cable opens carburettors
Throttle grip is twisted pulling cable
Both spools rotate
Roll pin in dual spool is pulled around by the end
of the groove in the actuator spool
Carburettor cable opens carburettors
Actuator cable is pulled by actuator
Throttle cable is pulled by the closing cable
via the twist grip
