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koso egt
Posted: Thu Jun 28, 2012 9:02 pm
by steve chapman
can anyone tell me how to fit a koso egt to a non battery bike as it needs a power source
. thanks Steve
Re: koso egt
Posted: Thu Jun 28, 2012 11:17 pm
by RobD
Get a 9v PP3 battery box from maplins, they're £1.99 and have a little on/off switch built in. Connect it up to the power feed to the koso and you're away. Koso do sell one but it's almost exactly the same. I fitted some velcro to the battery box and stick it next to the gauge. I also put a blob of silicon sealant where the wires go into the box to keep the water out.
http://www.maplin.co.uk/9v-switched-battery-box-36603
MB sell the koso one if you don't want the hassle
http://www.lambrettaspares.com/spares/s ... mb013.html
Re: koso egt
Posted: Fri Jun 29, 2012 8:17 pm
by steve chapman
thanks robd your a star
Re: koso egt
Posted: Fri Jul 06, 2012 9:48 pm
by steve chapman
trying to fit my koso egt and not sure how to wire it , im using it with a vairitronic
and acording to vairitronic instructions it can be used for ac and dc , is this right ?
ive also bought a koso regulator and not sure if i even need it

any help would be great
Steve
Re: koso egt
Posted: Fri Jul 06, 2012 10:09 pm
by wack 63
The varitronic reg has a DC output Steve,but not sure what sort of power it kicks out.I have mine to charge a battery to run my speedo and it does the job ok and have often wondered if the terminal would have the output just to run a gauge without having a battery.
Re: koso egt
Posted: Fri Jul 06, 2012 11:24 pm
by coaster
wack 63 wrote:The varitronic reg has a DC output Steve,but not sure what sort of power it kicks out.I have mine to charge a battery to run my speedo and it does the job ok and have often wondered if the terminal would have the output just to run a gauge without having a battery.
Without a battery or at least a capacitor, you will get low voltage at low revs which will probably give eratic readings on your gauges.