I had a similar issue with one of my xenon lights. It was perplexing because one light worked perfectly 100% of the time while the other one would fail to start almost every time. I initially thought it was a power issue, but I noticed that the light wouldn't always ignite even when turning the ignition switch on (before start) with a fully charged battery. When starting the bike, sometimes the light would start and sometimes it wouldn't. I also noticed that the light would occasionally go out while riding. A hi/lo beam swap usually got it back on, but it was annoying.
I went through a series of troubleshooting steps that included changing the bulbs. I thought about running a battery connection, but wanted to completely eliminate the HID system first. I ended up changing the ballast to a new one and the problem went away. Power is probably the problem, but I believe it is an internal issue with the ballast and its capacitor not specifically due to the power drop when starting. The SERG has a good electrical system and it is designed to run halogen bulbs, which draw more amps than xenon (even during the initial startup). Even if the lights go out when starting, they should immediately restart after the bike is running (no different than flashing lights when passing). The restart/initial start is the issue most are having. The second firing of the light is failing.
Xenonlink lights are cheap and they probably have spotty quality control to keep the price down. They see this problem all of the time. They have the same issue with cars. My recommendation is to swap out the ballast on the light you are having problems with before doing anything else. It should be a warranty swap. I ended up buying a new kit so I had two ballast to play with.
Jim,
Mine also goes out occasionally while riding. And it's always the same one.
Did Xenonlink send you a new ballast and bulb set, without your sending in the exchange first? I really hate to mess with that fairing twice. Or, did you have to buy another set?
Seems to me this setup should work, without modifying the existing electrical system. If that becomes necessary, then so be it, just one more PITA.
Hiway,
At what point in the the fairing wire harness, did you tie-in that dedicated circuit back to the battery. Detail about this connection will help. I don't want the lights to be on all the time.
Pictures would be a big help.
At any rate, the required lamp starting voltage is what it is, (Xeonlink should know how much voltage drop this set up can tolerate). When the starter engages, the proper voltage is there or it is not. Voltage measurements at the battery and existing ballast supply wire, during start up, should tell the facts. If the voltage drop at the ballast supply wire is significantly lower than what is measured at the battery (I would guess no more than 5%) ... well....
There may be two problems here disguising themselves as one.
Thanks
Rob