Hummm ... I quickly checked last night but if I had a ground cable
issue I would not see my 12.6v on the two sides of the main fuse by
the battery when I turn the key on... Right ?! (it goes back to 0 when
ignition is off)

(scratch scratch the head.. )


On Oct 14, 1:05 am, "Allen Thomas" <[email protected]> wrote:
> Did you remove clean and inspect your ground cables?
> Sent via BlackBerry by AT&T
>
>
>
> -----Original Message-----
> From: marcel cerdan <[email protected]>
>
> Sender: [email protected]
> Date: Thu, 13 Oct 2011 18:44:13
> To: Nighthawk Motorcycle Lovers!<[email protected]>
> Reply-To: [email protected]
> Subject: [Nighthawk Lovers] Re: Day 2 : Power failure... help
>
> bouuuhhhhaaaaaaaaa !!!!
>
> Rushed home from work, pulled out the tools, got cranking, fighting
> time (light going out and rain menacing)...
>
> First checked battery... 12.56v... good... Double Checked main fuse...
> ok... made a quick test : turning the ignition key does cut the
> contact at the main fuse level, so the ignition key works...
> Took out the windshield, empty wires from light box, took it out,
> unhook horn, unhook fuse holder... checked the back, all seems ok...
> pushed all cables, wiggled, giggled... removed all fuses for a double
> check...
> NOTHING !!!
> (yes, I had reconnected all the wired after removing the casing to
> make sure at least something would come on...)
>
> Put all back in place, took our saddle, follow up the wiring there
> (all good, no tape or anything like that), twisted the gas tank to
> check the wires under there.......
>
> By the time all is back in place, it is night... and IT IS STILL DEAD
> IN THE WATER !
>
> Ok, I didn't remove all the connectors behind the fuse box... maybe I
> should have... but I pushed hard on all the cables and nothing came
> up...
>
> BBBBoouuuaaaahhhhh !!!!
>
> Today's conclusions : battery is good, ignition does open power at the
> main fuse level...
>
> Open to suggestions (Yes, I'll rip everything off that damn fuse box
> next time...)...
>
> On Oct 13, 7:40 am, Kyle Munz <[email protected]> wrote:
> > I always start with the battery. It'd suck to circuit test the whole bike
> > only to find a dead battery. From there I'd move up to the ignition switch
> > and fuseblock.
>
> > -Kyle
> > On Oct 12, 2011 8:04 PM, "marcel cerdan" <[email protected]> wrote:
>
> > > Well I did the jiggle tonight, under freaking NJ rain, but I guess I
> > > didn't hit the right spot. 10mn only and I gave up, put the cover back
> > > on, and went to get dry...
>
> > > Also looked at the key cylinder and it seems to be all there.
>
> > > Next attempt friday afternoon, with a toolbox, more time, and a wish
> > > to succeed... Received the Clymer book meanwhile, which showed be how
> > > the support of the fusebox is holding. Any other leads I should look
> > > into while I'm at it on Friday ?! :-)
>
> > > Week end is supposed to be nice and damn it, this bike is going to be
> > > revived !
>
> > > On Oct 11, 4:31 pm, Kyle Munz <[email protected]> wrote:
> > > > Yep, it's the one under the headlight. Just to jiggle the wires and test
> > > for
> > > > loose connection you don't have to take anything off. To take the
> > > fuseblock
> > > > off for cleaning you have to strip it down a bit. This is a common 
> > > > enough
> > > > problem with the 650s. The connectors aren't very tight and cause arcing
> > > and
> > > > may even melt the plastic a bit. When you take it a part disassemble the
> > > > female ends of the to connectors so you can bend the contacts out a bit,
> > > > this way when it goes back together it's a tighter connection. I've got
> > > pics
> > > > of my teardown online athttp://www.kylemunz.com/nighthawk/?p=166
>
> > > > -Kyle
>
> > > > On Tue, Oct 11, 2011 at 3:14 PM, marcel cerdan <[email protected]
> > > >wrote:
>
> > > > > Ok back of the fuse box I'll check ... Now we re talking about the
> > > > > front fuse box under the headlight behind the horns, not the 30a fuse
> > > > > holder by the battery, right ? (oh the newbee feeling suddenly
> > > > > invading my head...)
>
> > > > > Now to have easy access there to check it all, it's headlight off it's
> > > > > mount and horns down, right ???
>
> > > > > Also found out while checking wiring inside the headlight that the
> > > > > plastic framing of it had cracks. Any clue to find a new one ? (the
> > > > > small windshield was mounted touching the headlight... I guess it put
> > > > > on pressure with time)
>
> > > > > Its a 650sc 1985...
>
> > > > > Only rode it for a day and already miss the smooth engine ... :-)
>
> > > > > On Oct 10, 10:03 pm, [email protected] wrote:
> > > > > > Kyle is correct. This is an ignition switch problem at the back of
> > > the
> > > > > fuse
> > > > > > box. I have an 84 650 and this has happened to me twice. I would be
> > > > > riding
> > > > > > along and the bike would just shut off, nothing worked. Some wire
> > > > > wiggling
> > > > > > at the fuse box and it would come back to life. This happened 5-6
> > > times
> > > > > one
> > > > > > day, not fun. A thorough cleaning of the 2 ignition plug connections
> > > at
> > > > > the
> > > > > > fuse box and dielectric grease solved the problem.
>
> > > > > > On Sun, Oct 9, 2011 at 6:55 PM, marcel cerdan <[email protected]
>
> > > > > wrote:
> > > > > > > OK,
>
> > > > > > > Bought a very nice 1985 Nighthawk... yesterday. I drove 70 miles
> > > back
> > > > > > > without any issues, runs like a kitten, battery remains charged
> > > (known
> > > > > > > issue...)
>
> > > > > > > Happy  as a king
>
> > > > > > > Used it yesterday afternoon to do a little tour, all is well...
>
> > > > > > > Today, I want to use it... all light come on, starter starts, then
> > > all
> > > > > > > goes off... Impossible to get anything on anymore.. Web browsing
> > > > > > > (manuals are in the mail :-) ) found location of the 4 15 amps, 
> > > > > > > all
> > > > > > > good. Main 30a fuse seems ok...
>
> > > > > > > What am I missing ?? I try the key juggle, verified all
> > > connections,
> > > > > > > got 12.6v on the battery... there must be another fuse somewhere !
>
> > > > > > > Help !!!!!!
>
> > > > > > > Stef from NJ !
>
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