Short circuit on an NC30

Forum rules
Please can you post items for sale or wanted in the correct For Sale section. Items / bikes for sale here will be removed without warning. Reasons for this are in the FAQ. Thanks
slr123
Settled in member
Posts: 42
Joined: Thu Jul 23, 2009 4:26 pm

Short circuit on an NC30

Post by slr123 » Tue Feb 15, 2011 4:22 pm

My NC30 keeps short circuiting, last month i started it up after it had been sat over winter, it started up ok but then after a couple of minutes cut out, later found out a fuse had gone (the 30A fuse that has it's own box, not sure what fuse it actually is) so i bought some new fuses but they just blow every time i connect the battery. According to the Manual that means there is a short circuit and following some advice from some bike people i know, i looked every where for some exposed wires that could be causing this. I couldn't find any, but it doesn't help that the last owner used about 3 rolls of electrical tape on the bike and it's loose everywhere. I did look for a mobile mechanic near me but can't find one, so was wondering if you guys had any advice on what it could be or what i could do?

User avatar
mattUKNC
NWAA Supporter
NWAA Supporter
Posts: 1075
Joined: Thu May 01, 2008 9:02 am
Bike owned: Fury, NC30, CRF250L and a C90!
Location: Surrey

Re: Short circuit on an NC30

Post by mattUKNC » Tue Feb 15, 2011 4:37 pm

That sounds like the one the sits on the starter solinoid?!
I'm guessing a main live is earthing somewhere. :grin: Does it blow before you even turn the key?
Have you checked the main positive lead to the starter solinoid and follow that back to the battery? Check for damage. Check under the solinoid too.
Hmm, if it's a mess of insulation tape I'm thinking this might take a while... :roll:
Image

slr123
Settled in member
Posts: 42
Joined: Thu Jul 23, 2009 4:26 pm

Re: Short circuit on an NC30

Post by slr123 » Tue Feb 15, 2011 5:09 pm

That's the one! It blows as soon as i even connect the battery. I have followed the leads and all seems ok, i was considering taking all the tape off and just taping everything back together, but not sure if I'll mess it up even more. There doesn't seem to be much damage anywhere really.

User avatar
skinnydog0_0
NWAA Supporter
NWAA Supporter
Posts: 1212
Joined: Tue Apr 20, 2010 9:07 pm
Bike owned: Penny Farthing
Location: Pembrokeshire West Wales

Re: Short circuit on an NC30

Post by skinnydog0_0 » Tue Feb 15, 2011 8:28 pm

To be honest, if it were mine, i would cut my losses, with trying to sort the existing loom, as it sound pretty butchered :(
You could get a second hand one from the "for sale section" on here that you can swap, and save yourself lots of time and hassle trying to find the source of the problem.
Unless you really want to check all the loom for shorts? ;)
An NC is for life, not just for Christmas!

User avatar
Cammo
Site Supporter
Site Supporter
Posts: 4505
Joined: Thu May 01, 2008 12:35 am
Bike owned: NC30
Location: Melbourne, Australia

Re: Short circuit on an NC30

Post by Cammo » Tue Feb 15, 2011 10:17 pm

slr123 wrote:i was considering taking all the tape off and just taping everything back together, but not sure if I'll mess it up even more. There doesn't seem to be much damage anywhere really.
It will be hard to tell what the problem is until you unwrap. I've found broken wires in the loom before when the tape is removed, the wiring can get very brittle.

I'm more inclined to take skinnydog's approach these days, or make up an entire new loom.
"It's just a ride" Bill Hicks

User avatar
Smev
Site Supporter
Site Supporter
Posts: 858
Joined: Tue Apr 29, 2008 8:54 pm
Bike owned: NC30 of course
Location: The Mighty Cornwall :-)

Re: Short circuit on an NC30

Post by Smev » Tue Feb 15, 2011 10:23 pm

slr123, where abouts are you? in the uk? or overseas?

I know a mobile mechanic near basingstoke in Hampshire if that is any help?
Mister Donut Rep NC30

Morespeedvicar
Site Supporter
Site Supporter
Posts: 837
Joined: Thu May 01, 2008 1:37 am
Bike owned: Fzr400, NC30, CB50J, SS50Z KLR
Location: Grimsby

Re: Short circuit on an NC30

Post by Morespeedvicar » Wed Feb 16, 2011 1:39 am

Hi, have you tried unplugging the reg/rec or anything else and see wat happens? Have you got a multimeter or anything? And why was the loom taped up has it been "modified" or something?
I'd deffo try unplugging a few things before i take the loom out as you got to unplug it all to take it out anyway!
Cheers
Ian

slr123
Settled in member
Posts: 42
Joined: Thu Jul 23, 2009 4:26 pm

Re: Short circuit on an NC30

Post by slr123 » Wed Feb 16, 2011 2:50 am

I would just sell it and be done as it has been nothing but trouble since owning it, however it is registered restricted and I don't come off of my restriction until August, so i don't wan to have to pay £200 or whatever it is to get another bike restricted.

slr123
Settled in member
Posts: 42
Joined: Thu Jul 23, 2009 4:26 pm

Re: Short circuit on an NC30

Post by slr123 » Wed Feb 16, 2011 3:09 am

Oh sorry, and I'm in Cantebury/Kent and haven't tried unplugging anything as i really don't know what I'm looking for.

User avatar
skinnydog0_0
NWAA Supporter
NWAA Supporter
Posts: 1212
Joined: Tue Apr 20, 2010 9:07 pm
Bike owned: Penny Farthing
Location: Pembrokeshire West Wales

Re: Short circuit on an NC30

Post by skinnydog0_0 » Wed Feb 16, 2011 7:29 am

slr123 wrote:I would just sell it and be done as it has been nothing but trouble since owning it, however it is registered restricted and I don't come off of my restriction until August, so i don't wan to have to pay £200 or whatever it is to get another bike restricted.
Hey i understand you are frustrated, but don't sell it. These V4's are probably the best bikes Mr Honda has made for us. Once you have it sorted and un-restricted you will see why they have such a strong following.

Do you have a haynes manual?
If you do, then you can get a multi meter and check the relevant parts in the circuit.
If you do feel like swapping the loom, get one from on here, and then we can offer you advice on how to swap it over.
I have swapped my loom over about 4 times in the last few months (problems with CDI plug :oops: )
:rocks:
An NC is for life, not just for Christmas!

Post Reply