Fuse/Power help

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Fuse/Power help

thePST
This post was updated on .
Hey there,

Got a 78 750SS a few months ago.  This is my first bike so I really don't know anything yet, so my apologies if I sound dumb at all.  First off I'd like to say this forum has been great to read for the few small problems I've already encountered.  The most recent problem I'm stuck on and would greatly appreciate some help.

A couple days ago I got done riding, parked the bike and went to bed.  Next day I turned the key to on and nothing.  No lights, horn, etc.  Just bought a new battery about a month ago but I checked it anyway.  Good read.  12+ volts.  At this point from what I've read my problem is likely to be a blown fuse or maybe some kind of wiring issue.  I've been reading the repair manual and looking at the wiring diagram but I'm pretty lost.  

Should I check the fuse with a multimeter? if so how would I do that?

Any other ideas and help, again, would be greatly appreciated.  Thanks guys.
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Re: Fuse/Power help

TOOLS1
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It is most likely your main fuse. A test light will work just fine to troubleshoot most electrical problems. You want to make sure you have juice at both sides of the fuse holders. Sometimes the fuse will be good, but the connections where the fuse snaps in will be dirty, or corroded.
TOOLS
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Re: Fuse/Power help

thePST
In reply to this post by thePST
Ok thanks TOOLS. I'll give it a try and then update.
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Re: Fuse/Power help

Piute
In reply to this post by thePST

  Just changed my switch(key) ,I unpluged and jumped wires to tell if was it and was,KEY didn't do anything,could move ,grab unit hold metal housing lil pressure twist plastic abit and light would go on,BUT I pretty much new most all wires and connection were good (did double check before ordering).
                            1977 CB750 F2 Super Sport
<LET THOSE WHO RIDE DECIDE><RIDE TO LIVE-LIVE FOR JESUS> 
Native American from central Cal,  Kickstand UP in S.W.Missouri,
                                       
 
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Re: Fuse/Power help

thePST
In reply to this post by thePST
UPDATE

I unhooked and lightly cleaned pretty much everything around the battery, relay, and regulator.  I checked the fuse and it was all good so I put everything back together and BOOM POWER!

Looks like I lucked out and just needed to get rid of some corrosion.  

I appreciate the help TOOLS