CONTROLS 6
19
6.18
Cold start button
S03529-10
The cold start button
1
is fitted on the side of the throttle valve body.
If the engine is cold and the ambient temperature is low, the
electronic fuel injection system extends the injection time. To help
the engine burn the increased fuel quantity, it must be supplied with
additional oxygen by pulling the cold start button.
Info
If the engine is warm, the cold start button must be deactivated.
Possible states
• The cold start button is activated
–
The cold start button is pulled
out all the way and turned by a ¼ turn.
• The cold start button is deactivated
–
A further ¼ turn returns the
cold start button back to the basic position.
6.19
Idle speed adjusting screw
S03529-11
The idle setting of the throttle valve body substantially influences
the vehicle’s starting behavior, a stable idle speed, and the vehicle’s
response when the throttle is opened.
An engine with a correctly set idle speed is easier to start than an engine
with the idle speed set incorrectly.
The idle speed is adjusted using the idle speed adjusting screw
1
.
Info
If the idle speed is high, the engine is slow to run, the engine
brake is low and the throttle response is aggressive, the adjust-
ing screw must be turned clockwise.
If the idle speed is low, the engine is running fast, the engine
brake is high and the throttle response is not clean, the adjusting
screw must be turned counterclockwise.
