speedo for gas gas ec250

[Bearman]

My '03 200 doesn't have a battery, I just have it wired straight into the headlight power source (I think) and it runs fine. The only thing you gain out having it wired into the bikes power, is that the backlight fires up when the bike does, you don't actually need to do it

[eff]

I didn't bother doing it on mine. As bearman said it only provides the backlighting.

[mike989]

Until I got a Trailtech for my 04 300, I put a push button "kill" switch on the 9volt battery that feeds the 300 instrument panel, worked great.
I have a vapor now, and have it wired to a 9 volt battery for a little brighter backlight while riding, that works great as well.
Trailtech advises not to hook the power lead to the 2t stator.

[super_rat]

I use a 9 volt transistor battery on my Acewell speedo. Lasts about 4 months.

[super_rat]

If you don't have a battery you also loose clock functionality.