You would still see 12V at the fuse without a good ground connection. You're checking the voltage between the source and ground, bypassing any downstream parts of the circuit.
On Oct 14, 2011, at 06:52 AM, marcel cerdan wrote: > > 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 ! >> >>>>>>>> -- >>>>>>>> You received this message because you are subscribed to the Google >>>>>> Groups >>>>>>>> "Nighthawk Motorcycle Lovers!" group. >>>>>>>> To post to this group, send email to >>>> [email protected] >>>>>> . >>>>>>>> To unsubscribe from this group, send email to >>>>>>>> [email protected]. >>>>>>>> For more options, visit this group at >>>>>>>> http://groups.google.com/group/nighthawk_lovers?hl=en. >> >>>>>> -- >>>>>> You received this message because you are subscribed to the Google >>>> Groups >>>>>> "Nighthawk Motorcycle Lovers!" group. >>>>>> To post to this group, send email to [email protected] >>>> . >>>>>> To unsubscribe from this group, send email to >>>>>> [email protected]. >>>>>> For more options, visit this group at >>>>>> http://groups.google.com/group/nighthawk_lovers?hl=en. >> >>>> -- >>>> You received this message because you are subscribed to the Google Groups >>>> "Nighthawk Motorcycle Lovers!" group. >>>> To post to this group, send email to [email protected]. >>>> To unsubscribe from this group, send email to >>>> [email protected]. >>>> For more options, visit this group at >>>> http://groups.google.com/group/nighthawk_lovers?hl=en. >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Nighthawk Motorcycle Lovers!" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]. >> For more options, visit this group >> athttp://groups.google.com/group/nighthawk_lovers?hl=en. > > -- > You received this message because you are subscribed to the Google Groups > "Nighthawk Motorcycle Lovers!" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/nighthawk_lovers?hl=en. > -- You received this message because you are subscribed to the Google Groups "Nighthawk Motorcycle Lovers!" group. 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