Instruction manual

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2–2–2 Targets for setting of the YEC FI Matching System and precautions
(1) Shifter / Cut Time
In case ignition cut time is short: Shift loss is reduced but there may cause hard gear throws.
In case ignition cut time is long: Gear throws will be easier but shift loss will increase.
CAUTION:
If ignition cut time is too short, the drive system may be damaged.
(2) Comp. FUEL / Map 1 (3) Comp. FUEL / Map 2 (7) Comp. FUEL / All Area
It is recommended that adjustment be made while constantly checking A/F. Aim for A/F 12 to 13.
Change at one time should be changes of 2% to 5% and especially for changes on the reduction
side, (in case of becoming thinner), pay attention to the A/F value while changing.
CAUTION:
If A/F is too thin, may relate to damage of the engine.
(4) Offset IGNITION / Map 1 (5) Offset IGNITION / Map 2
Adjust to the spark advancing side if too excessive, may possibly damage the engine. Sufficient
care is needed when making adjustment. In case no change is seen when spark advancing is
selected, or when at a loss to which side adjustment should made, it is recommended that
adjustment be made to the spark retarding side.
CAUTION:
Adjusting to the spark advancing side may possibly damage the engine if too extreme.
(6) Comp. ETV / Engine Brake
CAUTION:
If open setting of the throttle is made to reduce engine braking, the engine revolution may not
drop enough at corners and over-speeding may risk causing of serious accidents. Especially, a
change in gear ratio, or the running on a course for the first time, will require paying of sufficient
attention.
(9) Comp. RAM Correction
Use only when the A/F diverges with increased vehicle speed.