It died on me... - SV650.org

yorkie_chris · 11-10-07, 09:15 PM

Coming along my private runway today at about 80, and all of a sudden no power, tachos dropped to 0, speedo 0, lights off, no electrics at all.
Coasted to a stop, thought WTF?, presumed I'd blown the main fuse from lightbulb going or something daft like that, main fuse was fine, tried putting the key on again and hey presto, dash lights are on and it fired right up.

Checked it out when I got home, and there was a bit of the (suzuki applied) insulation tape come off the main live wire from the starter relay up to the loom where it joins in to the wires from RR unit, fusebox, ignition switch etc.

My question is, if this shorted out to anything, why did it cause loss of power without blowing the main fuse, and without there being any evidence of burnt wires?

Biker Biggles · 11-10-07, 09:21 PM

Maybe that wire is a red herring and your battery terminals are loose or something similar?

yorkie_chris · 11-10-07, 09:23 PM

They're tight and clean.

Does the starter relay ever cause simliar problems, though the bike has been starting fine and this is the first time I've seen a problem.

TSM · 11-10-07, 09:34 PM

check the connector that goes into the top of the relay, if thats pulled the bike will go completley dead i think.

yorkie_chris · 11-10-07, 09:37 PM

It would, as thats where the whole loom takes power from, but it was in, and wiggling it did not make the lights go out when I was playing around with it

northwind · 12-10-07, 10:24 AM

It could be the relay itself, that happened to me a while back... It was very intermittant initially, caused by a loose contact on the main fuse which I could generally sort by wiggling the fuse about (while trying not to electrocute myself). If it happens again, put it in neutral and see if it'll fire if you short the terminals on top of the relay, if it does, it's probably the relay circuit that';s knackered.

yorkie_chris · 12-10-07, 11:09 AM

If it happens again I might bodge it by swapping the main fuse for a 20A and adding another 10A fused feed to the loom right from the battery. Then the starter relay will only need to work to actually fire the bike. (this is assuming that the starter motor current does not go through the main fuse)

12-10-07, 11:10 AM

Quote:

Originally Posted by northwind

It could be the relay itself, that happened to me a while back... It was very intermittant initially, caused by a loose contact on the main fuse which I could generally sort by wiggling the fuse about (while trying not to electrocute myself). If it happens again, put it in neutral and see if it'll fire if you short the terminals on top of the relay, if it does, it's probably the relay circuit that';s knackered.

same happened to me too.

11-10-07, 09:15 PM	#1
yorkie_chris Noisy Git Mega Poster Join Date: Apr 2007 Location: Halifax/Leeds Posts: 26,645	It died on me... Coming along my private runway today at about 80, and all of a sudden no power, tachos dropped to 0, speedo 0, lights off, no electrics at all. Coasted to a stop, thought WTF?, presumed I'd blown the main fuse from lightbulb going or something daft like that, main fuse was fine, tried putting the key on again and hey presto, dash lights are on and it fired right up. Checked it out when I got home, and there was a bit of the (suzuki applied) insulation tape come off the main live wire from the starter relay up to the loom where it joins in to the wires from RR unit, fusebox, ignition switch etc. My question is, if this shorted out to anything, why did it cause loss of power without blowing the main fuse, and without there being any evidence of burnt wires? __________________ Currently Ex Biker Now rebuilding a 63' fishing trawler as a dive boat

11-10-07, 09:21 PM	#2
Biker Biggles Member Mega Poster Join Date: Jan 2005 Location: Barnet Herts Posts: 5,071	Re: It died on me... Maybe that wire is a red herring and your battery terminals are loose or something similar? __________________ On a clear day we stand there and look further than the ordinary eye can see.

11-10-07, 09:23 PM	#3
yorkie_chris Noisy Git Mega Poster Join Date: Apr 2007 Location: Halifax/Leeds Posts: 26,645	Re: It died on me... They're tight and clean. Does the starter relay ever cause simliar problems, though the bike has been starting fine and this is the first time I've seen a problem. __________________ Currently Ex Biker Now rebuilding a 63' fishing trawler as a dive boat

11-10-07, 09:34 PM	#4
TSM The Sick Man Mega Poster Join Date: Nov 2004 Location: Peckham.SE.LDN Posts: 4,768	Re: It died on me... check the connector that goes into the top of the relay, if thats pulled the bike will go completley dead i think. __________________ OTR: KTM 690 Duke R 2015 Full Akro SIDELINE: Kwak ZX636 A1P 2002, Red, R&G's, Yoshi, Double Bubble Screen GONE: Kwak ZX-7R P1, Full Akro, Undertray, Screen GONE: SV650S K2 Very Bruised & Without Fairing, Motovation Frame Sliders, R&G Ally Sprocket Toe Protector, HEL 2 Line Setup, GSXR K1 600 RWU Forks, Barnett Clutch & Springs, Penske 8981 Shock, Gilles Ti Rearsets, Steel Barends, Scottoiler, AFAM Chain & Sprockets, Twin FIAMM Horns, Skidmarx Bellypan, Full Micron Zeta Steel System, Cut down undertay. Forum Problems & Information / Site Suggestions

11-10-07, 09:37 PM	#5
yorkie_chris Noisy Git Mega Poster Join Date: Apr 2007 Location: Halifax/Leeds Posts: 26,645	Re: It died on me... It would, as thats where the whole loom takes power from, but it was in, and wiggling it did not make the lights go out when I was playing around with it __________________ Currently Ex Biker Now rebuilding a 63' fishing trawler as a dive boat

12-10-07, 10:24 AM	#6
northwind Moderator Mega Poster Join Date: Jan 2004 Location: In the garage where I belong Posts: 17,083	Re: It died on me... It could be the relay itself, that happened to me a while back... It was very intermittant initially, caused by a loose contact on the main fuse which I could generally sort by wiggling the fuse about (while trying not to electrocute myself). If it happens again, put it in neutral and see if it'll fire if you short the terminals on top of the relay, if it does, it's probably the relay circuit that';s knackered. __________________ "We are the angry mob, we read the papers every day We like what we like, we hate what we hate But we're oh so easily swayed"

12-10-07, 11:09 AM	#7
yorkie_chris Noisy Git Mega Poster Join Date: Apr 2007 Location: Halifax/Leeds Posts: 26,645	Re: It died on me... If it happens again I might bodge it by swapping the main fuse for a 20A and adding another 10A fused feed to the loom right from the battery. Then the starter relay will only need to work to actually fire the bike. (this is assuming that the starter motor current does not go through the main fuse) __________________ Currently Ex Biker Now rebuilding a 63' fishing trawler as a dive boat

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