I had a very crappy air filter/intake from the PO on it last season, and since my plugs looked great and the electrical and ignition systems checked out with minimal voltage drops and resistances all in spec, I figured my issue HAD to be the intake.
So this season I installed the proper airbox and filter but my mileage never changed.
I weigh about 340 lbs so I figured maybe THAT would account for the bad mileage, but other big guys on here with bigger bikes than mine get WAY better mpg than me.
So if everything checks out and is up to proper spec, what could the issue be?
I remember way back when reading a thread where the guy was chasing his tale trying to figure out why he was running rich even though everything else he could check was right where it should have been.
In the end he replaced his coils with dyna greens and his issues vanished.
I searched high and low for a way to check coil output voltage but aside from 'checking for spark' the old fashioned way or buying expensive lab equipment I couldn't seem to find a way.
I didn't want to just replace things that otherwise tested perfectly fine, and it seemed my size was the last obvious cause I could find for poor mpg.
My bike starts instantly, hot or cold, choked or not, and accelerates smoothly with no stumbles or flat spots, so the coils HAD to be good right?
A few days ago a friend of mine found this device at a very remote garage sale, and grabbed it for me for $10!
![](http://i1296.photobucket.com/albums/ag12/SteeltoedTank/IMG_0245_zps69e02e34.jpg)
So I have tested my coils and the results are 5kv from the left coil and 7kv from the right coil.
I should add here that I tested this unit on two cars with a known coil voltage output spec and they both tested perfectly.
I know the accel and dyna coils put out 35kv, but despite my forum searches and scouring BassCliff's site, I can't find what the OEM coils should be putting out.
So finally we get to my question, what is the stock kilovolt output of an OEM coil?
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