It would be OK to wire it to the battery, at least if you ride it every now and again. If you have to put it up over the winter you would be OK if the battery is on a maintainer. You could also wire it to the Brown Wire Circuit and let the internal battery do its thing. All it needs to do is keep the memory alive, I think. It should last a good long while.

On the side note: I agree that they should have included a resistor wire for the pick-up. The elusive Souperdoo, in the below article, wrote "TrailTech do offer a replacement tach wire that has a resistor in it. It's worth about a buck, they ask ten times that for it and should include it free in the dash kit. What good does it do them to piss people off, get bad press and reviews, and make people place a second order for a tach line that will work? BTSOM, D."

That said, a fuse in the tach sensor wire is not appropriate. That wire is to be wrapped around the spark plug wire and secured. By wrapping it around the high-tension lead you have turned it into an inductor. The electromagnetic pulses in the HT lead induce a small current in the inductor and is these pulses that the tach circuitry senses. There's no need for a fuse because the current isn't great enough to do any harm even to the wee wire that is used for the sensor wire.

Here's the full article:

Post Page

www.souperdoo.com

 

Thanks for your response. When I mentioned the inline fuse I intended it to be for the power lead not the tach. I did not word it very well.

That Sooperdoo guy must be some kind of KLR genius!

 

The vapor is known to reset itself when powered by a switched 12v source. Which is why they recommend to power it from an always on 12v source.

The vapor draws less than 1ma when in sleep mode. It's not something I would worry about discharging your battery. Never had problems with mine when I installed one on my old DRZ.