Phill Spowart
08-09-15, 01:06 PM
Evening all,
My mates SV (1999, think it's an X model) is causing havoc and pain. Story starts when the battery died, so she fitted a Lithium Ion box of witchcraft. Charging was checked in case the reg/rect had ********ed the old battery, it was reading 14.5v at 5K revs.
6 miles up the road, the battery exploded.
We now have a bike that will light up when the key is turned, and will spin the engine over, but has no spark on either cylinder. Also of note is that all the bulbs that were on at the time-head, tail, pilot and left indicator-are blown. I believe that when the battery went up, it took out anything that was turned on. All the fuses are OK, checked by multimeter not just visually.
I've gone through all the tests with a multimeter that the haynes book lists, everything checks out fine. This includes checking the 100 ohm resistor in the ignition switch. This, presumably, leaves the ECU/CDI/black box thingy as the main culprit.
She's bought another of these, but the bike is still dead. Could be that the second hand ECU is also faulty, or maybe there's something else that is also blown. Can anyone suggest what it might be?
What would be really, really handy is if someone near Derby, UK, had one of these bikes and would let us plug the new ECU into theirs and see if it works.
I posted this on the US forum, was told that the reg/rects can fail intermittently-hence she got correct reading when battery first fitted but could still have been faulty. I was told there's a better reg/rect unit available, can anyone advise?
My mates SV (1999, think it's an X model) is causing havoc and pain. Story starts when the battery died, so she fitted a Lithium Ion box of witchcraft. Charging was checked in case the reg/rect had ********ed the old battery, it was reading 14.5v at 5K revs.
6 miles up the road, the battery exploded.
We now have a bike that will light up when the key is turned, and will spin the engine over, but has no spark on either cylinder. Also of note is that all the bulbs that were on at the time-head, tail, pilot and left indicator-are blown. I believe that when the battery went up, it took out anything that was turned on. All the fuses are OK, checked by multimeter not just visually.
I've gone through all the tests with a multimeter that the haynes book lists, everything checks out fine. This includes checking the 100 ohm resistor in the ignition switch. This, presumably, leaves the ECU/CDI/black box thingy as the main culprit.
She's bought another of these, but the bike is still dead. Could be that the second hand ECU is also faulty, or maybe there's something else that is also blown. Can anyone suggest what it might be?
What would be really, really handy is if someone near Derby, UK, had one of these bikes and would let us plug the new ECU into theirs and see if it works.
I posted this on the US forum, was told that the reg/rects can fail intermittently-hence she got correct reading when battery first fitted but could still have been faulty. I was told there's a better reg/rect unit available, can anyone advise?