The R1100 is a fuel injected 2 cylinder motorcycle and i have had a iregular misfire thru all speed ranges. All checks on misture/compression/sensors and fuel injectors replaced - but despite this it still remains. This bike while in its day was state of the art, it has a very simple ECU and a few fault codes which none relate to the problem im seeing.
I have a friend at work who has loaned me an ADC-212 with an old laptop to run it on - sadly i cannot upgrade this to XP to run v6 of the software - so given this limitation what are the first and best steps to take to try and diagnose my misfire.
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.
Being optomistic I like to think that perhaps next time the approach for repair would be diagnosis first, knowing that it can be done by a properly equipped and educated workshop, even if they (the vehicle owner) dosn't understand the wiggly lines.
I think the real problem is too many workshops chuck parts at cars and that is the accepted norm - "we'll try this first because thats what it always is". (Blue car syndrome). So armed with Google, a pirate scan tool and a Haynes manuel Joe Bloggs can do an equally good job (which they are) before coming cap in hand to your door.
Caerleon - You are going to have to put up an image as well as the data file of the primary drive. I don't think there will be too many who will be able too open the file.
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?
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?