Warchild
Benevolent Dictator
Many who use our GenI FJR's for application in the Endurance Riding arena know that our stators are subject to periodic failure due to sustained, severe-duty use. Going the ElectoSport route for replacement has pros and cons: while you'll gain a fair bit of amperage to run your electrical goodies, the price is that the stator has a somewhat abbreviated service life. Many ElectroSports typically need replacing again after something on the order of 40,000 miles (+/-, thereabouts).
So LD Riders should regard the stator as a "consumable item", to be replaced at some periodic interval... :lol:
This weekend, it was my turn.... my ElectroSport has lasted a rather lengthy 51,000 miles, most it it VERY severe-duty use (lots of aux HID lamp use, LOTS of Warm-n-Safe liner use), but the Datel has been sending the tell-tale alarm signs for the past 1000 miles now that the stator is approaching the end of its useful service life. The best the Datel readout displays is a measly 13.6v, even at high engines speeds of 5000 RPM, with NO electrical accessories running! If I throw only the Warm-N-Safe on at 50%, the Datel sinks to 13.2v... obviously not normal. With the Warm-n-Safe turned off, I throw the 4GHID Aux Lamps on, the Datel falls to 13.1v right away.
Suspected Diagnosis: crispy stator with marginal output.
So I yank the stator cover... and see exactly what the suspected diagnosis would suggest: a smoked stator... the insulation not quite yet burned through to expose any windings, but definitely smoked-check from sustained, severe-duty use:
Close-up of smoked stator. By paying attention to the behavior of the Datel output over a wide range of conditions, I was able to detect the stator's pending demise get it replaced before the insulation actually melted away, exposing the windings and wreaking havoc:
Now for the tedious task of cleaning off every trace of old gasket material off the face of the mating surfaces...
New stator bolted into place, housing mating surface is clean and pristine, ready to install on the engine:
New stator in place, engine is fired up, and stator cover checked for oil leaks.... thankfully, all is bone dry!
Datel readout at idle, 1100 RPM, with HID headlamps running and bike in normal running mode. Perfect! With the 4GHID lamps lit up and the Warm-n-Safe liner set on 75%, the Datel drops to a healthy 13.6v, at normal engine speeds.
EXCELLENT! I really put this maintenance action off waaaaaaay too long, as daughter Lauryn and I depart in 4 days to head to World Superbike Races in Salt Lake City. Don't like to do this level of invasive surgery this close to a cross-country run, but I need the extra watts to cross the mountains at night. We traditionally leave at midnight Thursday night.... gonna be cooooooold going over the Blues, but now I got amperage to keep me warm! B)
So LD Riders should regard the stator as a "consumable item", to be replaced at some periodic interval... :lol:
This weekend, it was my turn.... my ElectroSport has lasted a rather lengthy 51,000 miles, most it it VERY severe-duty use (lots of aux HID lamp use, LOTS of Warm-n-Safe liner use), but the Datel has been sending the tell-tale alarm signs for the past 1000 miles now that the stator is approaching the end of its useful service life. The best the Datel readout displays is a measly 13.6v, even at high engines speeds of 5000 RPM, with NO electrical accessories running! If I throw only the Warm-N-Safe on at 50%, the Datel sinks to 13.2v... obviously not normal. With the Warm-n-Safe turned off, I throw the 4GHID Aux Lamps on, the Datel falls to 13.1v right away.
Suspected Diagnosis: crispy stator with marginal output.
So I yank the stator cover... and see exactly what the suspected diagnosis would suggest: a smoked stator... the insulation not quite yet burned through to expose any windings, but definitely smoked-check from sustained, severe-duty use:
Close-up of smoked stator. By paying attention to the behavior of the Datel output over a wide range of conditions, I was able to detect the stator's pending demise get it replaced before the insulation actually melted away, exposing the windings and wreaking havoc:
Now for the tedious task of cleaning off every trace of old gasket material off the face of the mating surfaces...
New stator bolted into place, housing mating surface is clean and pristine, ready to install on the engine:
New stator in place, engine is fired up, and stator cover checked for oil leaks.... thankfully, all is bone dry!
Datel readout at idle, 1100 RPM, with HID headlamps running and bike in normal running mode. Perfect! With the 4GHID lamps lit up and the Warm-n-Safe liner set on 75%, the Datel drops to a healthy 13.6v, at normal engine speeds.
EXCELLENT! I really put this maintenance action off waaaaaaay too long, as daughter Lauryn and I depart in 4 days to head to World Superbike Races in Salt Lake City. Don't like to do this level of invasive surgery this close to a cross-country run, but I need the extra watts to cross the mountains at night. We traditionally leave at midnight Thursday night.... gonna be cooooooold going over the Blues, but now I got amperage to keep me warm! B)
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