Description
This is an improved Yamaha XV400 Virago J4T033, 3JB-00 ECU Replacement.
What’s better compared to the original unit:
– increased protection against over-voltage (such as a defective voltage regulator/rectifier, bad battery).
– higher resistance against a defective ignition coil and reverse battery connection .
– acceleration correction: when the RPM increases the ignition delay changes (in proportion) resulting in a smoother acceleration.
– digital technique: therefor the unit is more accurate and less sensitive to temperature changes.
– optimized ignition curve/map to improve engine performance resulting in more power.
– spark power control: the unit will change the output to the ignition coil when the battery voltage changes in order to keep the spark power the same.
– start mode: during engine start the unit has a start delay and will give more current to the ignition coil for a faster start.
This ECU is used in the models below.
Please note that this (small) list is for reference use only.
We do our best to keep this up-to-date:
Yamaha XV400 Virago CDI igniter
OEM numbers:
J4T033 / 72 3JB-00 / 72 3JB-10
3JT-82305-00-00
Mitsubishi
Other names:
EC Ignitor, brain, ignition module, Spark unit
CDI, ECU, ECM computer, Black Box, Ignitor
ignition control module, spark box
Ignition Spark Control Module
CDI Ignition, ignitor unit
Blackbox
Yamaha XV400 Virago CDI igniter (J4T033, 3JB-00)
Model: XV400 Virago CDI J4T033
000.299.000 S120 45
