Carburetor - Idle - GAS GAS MC 85 2021 Owner's Manual

15 TUNING THE ENGINE
Column 2 corresponds to a needle in the standard position.
Column 1 corresponds to a needle which is half a clip leaner.
Column 3 specifies the diameter of the first cylindrical part of the needle. The smaller the diameter of the first cylindrical
part of the needle, the richer the mixture. The larger the diameter of the first cylindrical part of the needle, the leaner the
mixture. The first cylindrical part of the needle has the greatest influence in the lowest load range.
15.4
96
Info
The top right jet needle A2 corresponds to the richest setting of the carburetor, and the bottom left jet needle E1
corresponds to the leanest. The optimal carburetor tuning is shown under the respective model.

Carburetor - idle

Clip position
1 ... 5
The five possible clip positions are shown here.
The carburetor tuning depends on the defined ambient and operating
conditions.
B00075-10
The idle setting of the carburetor has a big influence on the starting
behavior, stable idling, and the response to throttle opening. This means
that an engine with a correctly set idle speed is easier to start than if the
idle speed is set wrongly.
Info
The carburetor and its components are subject to increased
wear caused by engine vibration. Wear can result in malfunc-
tioning.
402799-10
The factory setting for the carburetor is set for the following values.
Height above sea level
Ambient temperature
Super unleaded (98 octane) mixed with 2-stroke engine oil (1:40)
( p. 118)
The idle speed is adjusted with adjusting screw
The idle mixture is adjusted using the idle air adjusting screw
Clip position from above
301 ... 750 m (988 ... 2,461 ft)
16 ... 24 °C (61 ... 75 °F)
1
.
402797-01
2
.