Wild Dog Adventure Riding

Technical Section => Make / Model Specific Discussions => KTM LC4 400/610/640 & 690 => Topic started by: Bakkie on August 18, 2009, 09:55:37 pm

Title: 2005 KTM640adv DEAD - no power - HELP PLZ
Post by: Bakkie on August 18, 2009, 09:55:37 pm
Hi Guys

I hope you can help me. I took my bike to SlowPoke this afternoon to strengthen the subframe.

We disconnected the battery and welded. After the welding we sprayed the subframe and put everything back together.

When I connected the battery I put the negative wire on first and then the positive. When I conencted the positive I noticed some small sparks. Which seemed normal (means the bike is drawing power????)

I turned the egnition and NOTHING. no lights on dash NOTHING......

There is power on the battery and everything seems fine..... I double checked the fuses and found a 10amp fuse blown (second from side next to 20amp) I replaced it and still nothing....

Does the bike have computer unit that could be blown?

We checked for power and all seems fine...

PLEASE HELP ME......

thanks!
Title: Re: 2005 KTM640adv DEAD - no power - HELP PLZ
Post by: Mark Hardy on August 18, 2009, 10:01:03 pm
not to sure

on the 950 there are two main fuses, one in the cubbihole and the other under the bashplate.

good luck
Title: Re: 2005 KTM640adv DEAD - no power - HELP PLZ
Post by: Stev0 on August 19, 2009, 07:39:15 am
ignition aan, skop en kyk of daar spark is...
Title: Re: 2005 KTM640adv DEAD - no power - HELP PLZ
Post by: AntonW on August 19, 2009, 10:09:12 am
Check the wiring harness, they rub on the frame. I have had similiar problems which Auto (bike) electrician has repaired. His comment is that the harness is not well protected. Also people tend to sercure harness to tight and restrict movement.
Title: Re: 2005 KTM640adv DEAD - no power - HELP PLZ
Post by: redtiger on August 19, 2009, 12:20:42 pm
If you saw sparks and blown fuse my guess would be a dead short somewere on wiring harness as AntonW says.
Title: Re: 2005 KTM640adv DEAD - no power - HELP PLZ
Post by: Bakkie on August 19, 2009, 12:30:47 pm
If you saw sparks and blown fuse my guess would be a dead short somewere on wiring harness as AntonW says.

I also think so but I couldn't find any other fuses. will go through everytihing tonight using the wire diagram
Title: Re: 2005 KTM640adv DEAD - no power - HELP PLZ
Post by: dieterf on August 19, 2009, 08:06:12 pm
many years ago (5 or so) on my 640, i had an intermittant power shut off. eventually traced it to a spindly/lone earth wire under the seat leading to the tail light.
not sure how it effected the circuitry, but rewired that piece and never any problems again.

based on the fact you welded etc, look for something small and simple, maybe your model also has that odd tell tale wire in teh arse end???

good luck
Title: Re: 2005 KTM640adv DEAD - no power - HELP PLZ
Post by: Bakkie on August 19, 2009, 09:15:22 pm
Thanks guys got it sorted.  :biggrin: It was a stupid ground problem.  :BangHead:
thanks to Slopoke, Windhoek and some guys from advrider  :deal:
Title: Re: 2005 KTM640adv DEAD - no power - HELP PLZ
Post by: SlowPoke on August 19, 2009, 09:20:15 pm
F@rk yes.. Man, the katoom had me worried... Thought I fried the ECU or something with the welding... I was sure I did not but hell at 2 in the morning with a mates stripped bike in the garage you worry about weird shit...

Luckily Bakkie got hold of the wiring diagram for the 640 and after tracing the main components we established what the problem was and promptly solved it. All I am saying is that what happens in Bermuda stays in Bermuda  :imaposer:

Bakkie, post some pics of the subframe...  :mwink:
Title: Re: 2005 KTM640adv DEAD - no power - HELP PLZ
Post by: Mark Hardy on August 19, 2009, 09:32:43 pm
 :thumleft:

well done

and yes show us this 2am welding  >:D
Title: Re: 2005 KTM640adv DEAD - no power - HELP PLZ
Post by: Bakkie on August 19, 2009, 09:37:26 pm
:thumleft:

well done

and yes show us this 2am welding  >:D

no worries will do a welding report soon
Title: Re: 2005 KTM640adv DEAD - no power - HELP PLZ
Post by: Bakkie on August 19, 2009, 10:24:43 pm
http://www.wilddog.za.net/forum/index.php?topic=36611.new#new