so given this limitation what are the first and best steps to take to try and diagnose my misfire.
Buy an Automotive 4000 series scope/accessories & laptop (if you know how to use one) or take the bike to someone who has the equipment/knowledge to diagnose it.
Rob - Is the answer always to invest £1000's in the latest kit when the OP only wants to utilise what they've got already?
Freddy - Thanks for the reply.
It uses the Bosch Motronic 2.2 system Oil/Air temp/Throttle Position Sensor/ TDC hall effect inputs see here http://bmwsporttouring.com/ubbthreads/ubbthreads.php?ubb=showflat&Number=808189
I have changed the majority of the parts, no vacumm leaks and it runs, although not that great at that! The mechanical side i.e. hall gate/ valve clearences have been done. I would like to do a leak down test as the hot and cold compression showed well into the 120-150psi mark for each cylinder.
My aim was to use the PICO to test the measured output at the plugs which is a healthy 8-12 Kv on both sides, the coil while tested before i installed it and the leads all checked out was my first port of call!
Timing is controlled by the moronic unit (ECU) - the tacho needle jitters which due to the irregular miss can explain it, but i cannot find ayn other reason for the misfire. The only thing i can think of using the PICO on now is measuring the Top and Bottom hall sensor inputs to the ECU. After that i think im baffled of what other tests can be performed, can you suggest any other testing that i can carry out?
Thanks for your reply in advance,