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Strange - intermittent starting issue

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I promised I searched.

Will do Marquez's electrical diagnosis procedure next but...don't have a clue about electric stuff or reading one of those meters.

E model - Have done power mod. Has heated grips on a relay if that matters. Have never had a starting issue till yesterday. Was running the grips yesterday FWIW.

Bike stalled, hit the starter button and nothing. Hit it a few more times and starter engaged, it started right up. I though huh??

Went to start it later and nothing. We thought battery dead? When you pushed the starter button you could hear a clicky buzz. Pushed it off and it started no problem.

Same thing happened again later.

Here's the weirdest part - Went to push start it one last time for the day. I noticed when I turned the key on there were no lights. Though battery is totally dead. But then turned key off/on and the lights came on. Tried to bump start it twice, no start. Turned the key off/on again, hit starter button and the starter engaged and bike fired right up as if nothing had ever happened???

Thanks for your thoughts . .

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Thoughts? - Yes. Obviously an intermittent problem. E Marquez publication of the electrical troubleshooting guide probably will not help much but is always a good place to start. The problem is external to the power generating system. Some place between the battery and the loads there is a bad connection or broken wire.

Clean and tighten the battery terminals

Replace the fuse (good or not)

Inspect he fuse holder for heat/discoloration.

inspect the connector between the fuse and the battery for heat/discoloration possibly even green.

Inspect the wires near the steering head for pinch/breaks.

Inspect the connections at the key switch.

I suspect your key switch is bad. Turn it on and off repeatedly and observe odd/variable performance. Pull the wires off the switch and jumper together and see if the problem goes away.

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Thoughts? - Yes. Obviously an intermittent problem. E Marquez publication of the electrical troubleshooting guide probably will not help much but is always a good place to start. The problem is external to the power generating system. Some place between the battery and the loads there is a bad connection or broken wire.

Clean and tighten the battery terminals

Replace the fuse (good or not)

Inspect he fuse holder for heat/discoloration.

inspect the connector between the fuse and the battery for heat/discoloration possibly even green.

Inspect the wires near the steering head for pinch/breaks.

Inspect the connections at the key switch.

I suspect your key switch is bad. Turn it on and off repeatedly and observe odd/variable performance. Pull the wires off the switch and jumper together and see if the problem goes away.

this is outstanding advice :bonk:

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You have definitely got a poor connection there...

Noble has covered what to look for comprehensively ...:smirk:

My 1st thought was a faulty ignition switch as the demon..

Several bikes ago I had a similar problem and this was the cause...

Good luck...:bonk:

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Hey guys.....sorry had to check out for a while.

Been working on my electrical problem today, found a few things, here's where I'm at.

  • The switch for my heated grips was falling apart internally....... replaced the switch, grips work fine now, they are not a part of the problem.
  • I have checked and cleaned connections, I think they are all good now.
  • To recap, I have a relay installed so the off,high,low switch for the heated grips will only work with the bike on. Has worked just fine till now.
  • So now, I keep blowing the 10A fuse at the battery.
  • Below is a pic of how I have it wired....which has always worked .......till now.
  • I have the relay straight wired to the battery and grounded well. FOr testing purposes, I don't even have the wire hot wire to the grips connected to the relay, so the grips are out of the equation.
  • Whenever I touch the orange spliced (headlight) wire to the relay, the fuse pops (when connected to relay).
  • I even bought a new relay thinking that was the problem...it's not. Fuses pop on either the new or old relay.
  • If the key is off fuse is OK, turn key on and fuse pops.
  • Disconnect the orange splice wire from the relay, turn the key and everything is just fine.
  • To summarize.....everytime the orange splice wire is connected to the relay and I turn the key on, I pop the fuse.
  • Do you think I have a bad key switch? But the switch/starter/bike works fine if I take the relay out of play.
  • Thanks doods....hope that makes sense.... I'm confused

Here's how it's wired up.....has always worked this way.

scan-1.jpg

Edited by ihatefalling

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Not sure this will help but I just wired up some horns and a relay on my FZ1 and I used a 20A fuse. 10A sounds too low... but I'm far from an expert.

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Thanks for the reply but, the 10A fuse is what is stock on the bike.

however.......I am not an electrician by any means . . . . .

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