Dashpot Adjustment - Suzuki DF 25 Service Manual

11. Adjust the throttle valve screw(s) 4 until the carburetors
are synchronized (steel balls at the same height in each
of the tubes) and the engine idles smoothly.
NOTE:
If the engine speed has been raised or lowered due to the ad-
justment, it is necessary to reset the engine at the specified
idle speed by turning idle adjusting screw of No.3 carburetor.
(See page 2-11)
12. Shift into the "Forward" position, then check the in-gear idle
speed.
In-gear idle speed: Approx. 850 r/min
13. After stopping engine, remove the synchronizer from the
impulse plug hole; then install the impulse plugs.

DASHPOT ADJUSTMENT

The purpose of the dashpot is to provide a controlled return to
idle speed when the throttle is closed. The effect of a properly
functioning and adjusted dashpot will be engine speed holding
shortly at approximately 1500 r/min and then slowly dropping
to idle. The dashpot's ability to perform a controlled return to
idle as designed should always be checked and adjusted if
necessary after synchronizing carburetor throttle valves.
Adjust the dashpot effect using the following procedures.
1. Start the engine and bring it up to normal operating tem-
perature.
2. Turn the No.3 carburetor idle adjust screw to set engine
speed at 4000 r/min., counting the number of idle adjust
screw turns between idle and 4000 r/min.
NOTE:
Dashpot adjustments must be made in neutral gear.
PERIODIC MAINTENANCE 2-15
Rod
Accelerator
pump lever
Idle adjusting screw
Throttle stop
Dashpot unit