I'm having some problems keeping the battery voltage up on my NSR, it's running total loss and a PGM2 ignition, also it's on a stock size YTX4 battery...

The battery charges fine (it's about 12 months old, and a decent make) but drops voltage quite fast when running. I fitted a volt meter and did a trackday on Saturday.

Watch the footage and see what you think (of the voltage, not the shoddy riding)
http://youtu.be/xDTRlXhbhcA

It's a bit slow to begin with, some time sat in the pits then 2 sighting laps, but I'd appreciate some input, especially from those who also run total-loss on their NSR's please!

I'd like to get this sorted, as it stops revving cleanly once the voltage drops to about 12v and below. At 11.5ish it'll only run on one cylinder.

Does it look like I need a new battery? Or is the PGM drawing too much current? I'm wondering if the RC servo is drawing too much too..

Thanks
Paul
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More **** two strokes than you can shake a **** stick at.