Needle; Main Jet; Reference Carburetion (Competition Use Only) - GAS GAS ENDURO 4T EC 2014 Owner's Manual

Owner´s manual
Carburetor setting
3
2
1
Carburetor type

Main jet

Idle jet
Needle jet

Needle

Needle position
Starter jet
Pilot oir jet
Leak jet
Throttle stop screw
Mixture screw
NEEDLE
The needle and the main jet together have an effect ranging from 25% to 75%
1
load. The needle moves into the main jet, when the needle narrows, changes from
cylindrical (1) to conical (2), its position determines the amount of fuel passing.
At the top of the needle are five slots (3) which sets the clip. This clip positions
the needle on the throttle valve and determines the relative position of the main
jet (that's why the mix is enriched). Moving the clip up leans the mixture. Change
te clip position on step at a time (the cylindrical part of the needle affects the res-
ponse to small throttle valve openings).
The position of the clip is set counting from the top position.
MAIN JET
Has a greater effect from 75% to 100% load. The number stamped on the
bottom of the jet (1) indicates the flow of fuel passing through the hole. A higher
number corresponds to a larger hole, more fuel passes.
NOTE: Never use "jet gauge sets" that are in the market. Its use is incorrect.
Always use new jets without manipulating (sealed in their bags).
Gasoline is extremely flammable and can be explosive under certain conditions.
When you handle the carburetor, stop the engine and do not smoke. Make sure
the area is well ventilated and free from any source of sparks or flames (this inclu-
des any appliance with a pilot light).

REFERENCE CARBURETION (COMPETITION USE ONLY)

EC250F
160
42
68
GDEQR
115
70
70
Short
1,5turn from fully closed
DANGER
EC300F
Keihin FCR-MX37
160
42
68
GDEQR
from top
5ª
115
70
70
Short
1,5 turn from fully closed
-59-
EC450F
Keihin FCR-MX39
162
48
65
NFPR
NO
70
60
Short
1 turn from fully closed