| is this any help? The unit is designed to collect its trigger signal from HT leads via the clamp sensor, of course our zeds use direct coil packs so there are no plug leads, but no worries as the coil packs emit emf (electric magnetic fields / force ) each time they trigger and the timing light sensor can pick up this and use it to flash the xenon light at the correct time, however the sensor jaw must be open so here you can see a cable tie is used to keep it apart. 
So now the easy bit, the induction sensor sits really nice in the coil pack well, make sure the silver sticker is facing forward as its more sensitive this way around
Hooking up the light to the battery, connect the red clip to the 12v live terminal and the black clip to the plenum earth point this we find gives a cleaner supply ( electronic wise ) and hence a brighter consitant flash.
So we know the correct timing is 15 deg tdc this of course is at normal operating temperature, if the engine is NOT up to temp it will show as advanced of timing, this is normal and will reduce as the engine warms up. So if any adjustments are needed the cas unit (crank angle sensor ) will need the three 10 mm bolts slacking off and the unit rotating either right to retard or to the left to advance, once correct lock them up and your done, occasionally after the timing has been adjusted the tick over may need trimming, the timing been correct is essential to get the best performance and best mpg.
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Re: checked timing - 
