SpeedRacer wrote:also is a tacho essential for dyno?
not with a link as the will just get rpm off the hand controller or laptop they will use.
Depends on how it is wired.
If they have used most of the OE loom and just adapted on the link and igniter etc etc onto the appropiate places in the loom,
( which is quite likely)
the easiest place is just go to the old igniter wiring.
There would have originally been 5 wires, and now they will only be using 3 or maybe 2 as none of the 5 are earth.
You need to join the one that was labelled EXT on the old igniter and join it to the coil -ve.
OR failing that run a wire from the IG- in the diagnostic socket to the coil -ve.
Matt