Lost all electric Please help

[pntrdave]

'78 GS1000 27000 miles was running great always starts within a few seconds. About 103 F outside today, 25 miles @ about 65mph, pulled into Gas station for gas, went to start bike and nothing. No headlight, no dash lights, no horn, nothing electrical. All the fuses looked good, wires to battery were tight.
I hope it's something simple I'm over looking, any ideas????

[snakebite]

not unusual to have a sudden battery death on a hot day.
check it under a load.
i just filled up a new one for a neigbors wing.
exept he turned the key ang got lights till he tried to start.blew open a rotten interconnect bar in the bat.
of course look for stupid stuff.
like a bad ground or a fuse that looks ok but has had the solder in the ends melted from a high resistance fuse clip producing heat.
time to exercise that v.o.m
or get a cheap one at harbor frieght to get started.

[KEITH KRAUSE]

If absolutely nothing happened at re-start, it should be the main fuse. Pop a new one in and test. Fuses can be bad at the ends and you can't see the break. Check all connections next.

[pntrdave]

Like I said all the fuses looked good. I went and bought a new battery because voltage was a little low on mine, not the problem, bought a multimeter and started tracing wires, not the problem, replaced perfectly good looking fuse and yeah my baby runs again. Thanks for the quick replys, I should have replaced the main fuse right off but like I said it looked fine. Not to expensive a life lesson.

[KEITH KRAUSE]

I figured it was the main fuse. As others have found out, the fuse doesn't always blow where you can see it. And old glass/tube fuses don't always blow just from the start up amperage, sometimes the soldered ends inside crack and weakens so it's just ready to fail. Always carry spares for the main and all circuits.
At least you have a new battery and a new tester to play with.