Hello,
I'm slowly learning about my "new to me" Sportster and I'm wondering if anyone else has a "Lumenition in association with GEMS" electronic ignition setup on a BMW 6 cylinder running triple Weber carbs? The distributor seems to be one of those fixed units running off the front of the cam, and there is a small heat sink Lumenition unit next to the coil, and a larger blue module in the passenger footwell, labelled as a Competition Engine Management System, Type C410, Serial No 01168, made in 1996. The unit has a D-type multi-pin connector on its lower surface, with 9 pins. I suspect the blue unit can be connected to a laptop in some way to allow adjustments, but no details came with the car, and I can't find any details on-line, having spent a couple of hours Googling. The car was built by Marlin themselves in 1997, so I suspect this was their way of overcoming the engine management system issues associated with ditching injection and moving to triple Webers. I've emailed Lumenition and GEMS, but thought it also worth trying on here as well in case they no longer provide support. I suspect the timing may be a bit too advanced at the moment - there is popping back through the carbs, a biggish flat spot under acceleration, a high idle and I suspect I can sometimes here pinking under load. The engine is a BMW M30 unit, I suspect from a 635 based off the engine number.
I've hopefully managed to paste an image of the blue module below.
Capture.JPG
That aside, I took my Dad for a run yesterday afternoon and its still an epic ride, even if its not quite spot on yet. We went up to Bentham from Burnley, which gave us view of the Lake District fells, Morecambe Bay and Ingleborough before we headed home.
Capture2.JPG
I'm slowly learning about my "new to me" Sportster and I'm wondering if anyone else has a "Lumenition in association with GEMS" electronic ignition setup on a BMW 6 cylinder running triple Weber carbs? The distributor seems to be one of those fixed units running off the front of the cam, and there is a small heat sink Lumenition unit next to the coil, and a larger blue module in the passenger footwell, labelled as a Competition Engine Management System, Type C410, Serial No 01168, made in 1996. The unit has a D-type multi-pin connector on its lower surface, with 9 pins. I suspect the blue unit can be connected to a laptop in some way to allow adjustments, but no details came with the car, and I can't find any details on-line, having spent a couple of hours Googling. The car was built by Marlin themselves in 1997, so I suspect this was their way of overcoming the engine management system issues associated with ditching injection and moving to triple Webers. I've emailed Lumenition and GEMS, but thought it also worth trying on here as well in case they no longer provide support. I suspect the timing may be a bit too advanced at the moment - there is popping back through the carbs, a biggish flat spot under acceleration, a high idle and I suspect I can sometimes here pinking under load. The engine is a BMW M30 unit, I suspect from a 635 based off the engine number.
I've hopefully managed to paste an image of the blue module below.
Capture.JPG
That aside, I took my Dad for a run yesterday afternoon and its still an epic ride, even if its not quite spot on yet. We went up to Bentham from Burnley, which gave us view of the Lake District fells, Morecambe Bay and Ingleborough before we headed home.
Capture2.JPG
Comment