But of those, I settled on just two of them as "must have's". The various temperatures and pressures would be reassuring to know, but they seldom exceed limits, so long as maintenance is kept up. Amperage is interesting, but I don't instinctively know "what to do" with it. RPM is interesting, but since my machine runs either at idle or full throttle, all I need to do is diagnostically set the max rpm to 3600 (using a handheld laser tachometer) and then just assume that full throttle is 3600.
But fuel level I need. Because I've run out a couple times, and it's always at a bad time/place. So that gauge helps make me less likely to do something dumb.
And I need voltage. Now, I have a nice "charging error" light, and that's great EXCEPT that according to the manual, "it's perfectly normal" for that light to be on for the first few minutes of operation." That really bugs me. I'm sitting there looking at a warning light, telling myself to ignore it.
It chaps my hide to have a warning light that is intentionally going to give me false alarms in some circumstances, and I'm supposed to keep track of when to care and when not to.
But ever since high school, I've known that "normal" voltage is, basically, anything between about 13 and about 15. And digital voltmeters are small-ish in size, and cheap.
So I ordered (and have just finished installing) a fuel sender and gauge, written up in a different post.
But at the same time I ordered one of these:
https://www.ebay.com/itm/165836442431
As it turns out, it arrived yesterday, the very time that was already doing the dash/electrical work, installing that fuel gauge.
So I went ahead and installed the voltmeter while I was at it.
It needs 12V accessory hot and 12V ground. I piggybacked both of them off of the back of the new fuel gauge using "piggyback" spade terminals.
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I should have drilled the hole about 3/8" lower than I did, because the top edge of the hole is right at the bottom of the idiot light sockets. So the meter body can be pushed in, but the top of its threads are snug against the idiot light sockets, and you cannot screw the locking ring onto it. But luckily, the 1 1/8 hole is so tight on the threads that I had to push the meter in "with all my might" which gives it a permanent friction fit. Thank the Lord!
But if I had it to do over again, I'd have drilled about 3/8" lower than I did.
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(sorry for the blur. My phone apparently focused on the steering wheel instead of the dash. And the web page is zooming the pictures in too much. Click on the picture to see it fullsize.)
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Bob
Another well done project Bob! 