H Man
Just got it firing!
Hi all,
Thanks to anyone taking the time to read this & I hope I'm using this forum correctly as it's my first time posting on one.
I've owned a 2008 1200 Sport 4v since late 2019, I'm second owner, approximately 80,000k's on the clock (the first owner said the odo went to zero as he connected a replacement battery at 40,000 kms).
Occasionally the bike wouldn't start (no cranking) & I found moving it around seemed to help. The first owner had the common starter motor connection upgrade carried out. I traced the problem to a partial break in the short loom from the ignition switch to the main harness which I replaced. I think I'm correct in thinking that the immobiliser is part of the PCM (ECU) on the Sport & I also replaced this with a used unit, partly hoping to eradicate the problem that turned out to be the ignition loom & also because I had it re-flashed to improve the low down throttle response. I set it up & checked & cleared out the fault codes with Diag.
The remaining problem is that the bike will be fine for a week or so & then when you turn the ignition on the red warning light to the left of the neutral & kickstand lights will come on & the bike will crank but not fire. It's always done this & last year I thought I'd cured it by swapping keys & it seemed better. It's now getting more prevalent again with either key, mostly not firing until the battery gets tired but sometimes cranking the light goes out & it'll fire. I read somewhere (maybe on here) that high resistance to the oil pressure switch can cause this but I've replaced the switch & connection terminal. The battery is a new good quality Yuasa & I've run additional earths to the PCM & starter motor. I can return to the bike a short time later & it'll be fine. Does it hot or cold.
If anyone can shed any light on this issue it'd be very much appreciated.
Thanks to anyone taking the time to read this & I hope I'm using this forum correctly as it's my first time posting on one.
I've owned a 2008 1200 Sport 4v since late 2019, I'm second owner, approximately 80,000k's on the clock (the first owner said the odo went to zero as he connected a replacement battery at 40,000 kms).
Occasionally the bike wouldn't start (no cranking) & I found moving it around seemed to help. The first owner had the common starter motor connection upgrade carried out. I traced the problem to a partial break in the short loom from the ignition switch to the main harness which I replaced. I think I'm correct in thinking that the immobiliser is part of the PCM (ECU) on the Sport & I also replaced this with a used unit, partly hoping to eradicate the problem that turned out to be the ignition loom & also because I had it re-flashed to improve the low down throttle response. I set it up & checked & cleared out the fault codes with Diag.
The remaining problem is that the bike will be fine for a week or so & then when you turn the ignition on the red warning light to the left of the neutral & kickstand lights will come on & the bike will crank but not fire. It's always done this & last year I thought I'd cured it by swapping keys & it seemed better. It's now getting more prevalent again with either key, mostly not firing until the battery gets tired but sometimes cranking the light goes out & it'll fire. I read somewhere (maybe on here) that high resistance to the oil pressure switch can cause this but I've replaced the switch & connection terminal. The battery is a new good quality Yuasa & I've run additional earths to the PCM & starter motor. I can return to the bike a short time later & it'll be fine. Does it hot or cold.
If anyone can shed any light on this issue it'd be very much appreciated.