Positioning The E-Ring - BOMBARDIER 1996 Ski-doo MX Z440 Handbook

Section 04 ENGINE PREPARATION

POSITIONING THE E-RING

, A01C58S
Check for a rich or lean setting by examining exhaust manifold. A very light brown or white color
indicates a lean mixture. A very
color is tan.
2. Move E-ring one groove at a time to correct the fuel/ air mixture.
3. If proper operation is obtained at all but the 3/4 throttle setting after the main jet has been tuned,
operation may be improved by changing the jet needle taper. Do not, however, change the jet
needle until main jet and E-ring position have been thoroughly checked.
4. If the E-ring is in the number 5 position and operation is still lean, a needle jet with a larger orifice
may be installed. This may be done only after thoroughly checking the main jet, jet needle, and
E-ring positions.
o
NOTE : Make sure washer is installed under E-ring on vehicles so equipped.
04-72
I
Lean
Rich
-
dark brown or black color indicates-a rich mixture. The proper
E-Ring
Washer