TZR250 3MA
New
Title
Go to content
Limiter circuit check.

To make sure you connected the speedlimiter circuit board correct, here some small step to check it is working like it should.
This is important, otherwise the CDI will always use the "limiter signal" as it sees a problem in its system.
All measurements are done on a powered up CDI (switch your bike on with the key but engine is not running)

There are two main signal wires to check
1) Red/blue wire (main signal wire for the CDI)
2) Green/blue wire (extra control if circuit is connected all right)
Use the power up connector on the CDI to connect the multimeter.
Plug your ground signal wire from your multimeter into the rear off the connector
Green/white wire
Plug your signal/measure wire from your multimeter into the red/blue wire at the connector
Measuring +/- 2,2V means non active speed limiter signal.
(metal tap in speedometer is not between the optics)
Measuring +/- 4,5V means active speed limiter signal.
(metal tap in speedometer is between the optics)
Measuring +/- 10V means you did not connect the second speedlimiter signal wire correct (or it is broken somewhere) its the green/blue wire ant it needs to be connected.
If the (green/blue wire) is unplugged the signal is 10V and the CDI will use the speed limiter constant.
Plug your signal/measure wire from your multimeter into the green/blue wire at the connector
Measuring 0,0V means connected correct
Back to content