Yamaha Starbike Forum banner

1 - 15 of 15 Posts

·
Administrator
Joined
·
13,308 Posts
Discussion Starter #1
i have a V Star 950

all of a sudden, i have a short somewhere that keeps popping my 10a fuse that knocks out my headlight, brake light, and turn signals. it's not affecting my front and tail running lights.

the last thing i've done anything electrical to my bike was replacing my rear turn signals with an LED array by Radiantz that was professionally installed by my painter more than a month ago. the bike has been running fine up until today, about 30 miles down the road and then my lights go out. i replaced the fuse and then it blew again just a few seconds later after starting up my bike and testing the brake and high beam.

i was on my way to a bike rally and then had to turn around and go home before it got dark. i'd like to get this solved tonight because i want to enter my bike into the bike show at the rally tomorrow but don't want to be out on the road even in the daylight if my lights aren't working, especially my brake signal.

how do i find out what is causing my short?

here's a list of electrical items that i've added to my bike and none have caused any problems so far: kuryakyn power point, back off brake modulator, lighted Kuryakyn license plate, cobra Fi2000r, replaced rear turn signals with Radiantz LED array

please help guys
 

·
Registered
Joined
·
1,531 Posts
Fuse

Bevo,

Isn't that susposed to be a 15 Amp fuse?

Check the battery Voltage with the engine running maybe reved a little bit. It should not be much over 14 Volts. If it is high your regulator may be bad.

Dave
 

·
Registered
Joined
·
1,880 Posts
Bevo, I would love to say "yeah, I know what it is" but I do not. Electrical stuff can be (and to me is) a nightmare. The way I figure it out is follow your wires, start from a termnal point, ie, what ain't workin and trace it all the way to power supply, each one. Time consumin for sure and very simplistic, but has worked for me. Hope this may help a bit to get you going:) Ride safe.
 

·
Administrator
Joined
·
13,308 Posts
Discussion Starter #4
Isn't that susposed to be a 15 Amp fuse?

Check the battery Voltage with the engine running maybe reved a little bit. It should not be much over 14 Volts. If it is high your regulator may be bad.

Dave
it's a 10 amp. that's what it was from the factory. maybe this is important: the fuse blew after just 3 months of first owning the bike before i had ever done anything electrical to it, but it may have been a different 10a fuse because it only knocked out my tail light at the time.

UPDATE:
so i found a couple unused wires from my BACK OFF brake modulator which the ends were slightly exposed and taped them off, but they've always been there like that for at least a year. i replaced the fuse again, turned the key on, and now my brake signal was working again. then i turned the ignition and it immediately blew. the first time i replaced the fuse, my headlight was on for a few seconds before blowing.

i don't know if i want to be taking my bike apart so i can follow every single wire since i'm not that skilled in electrics to begin with and it's a big undertaking and very time consuming. thanks for the tip on the battery voltage, but would that just affect one fuse? i don't have a voltage meter to even check it. think i may just have to take it in to the dealer, or take it back to my painter since he's the last to have touched my electrical system and have a pro check it out.
 

·
Banned
Joined
·
4,088 Posts
I'll guess they will bypass everything one wire at a time until they locate the one or two or three or however many wires are shorted and then replace them, or replace that whole bundle. Might get pricey. Headlight bucket is pretty jam packed with wires, I'd have a look at every wire inside there first and see if you can see something suspicious.

Good Luck Bevo
 

·
Registered
Joined
·
1,088 Posts
it's a 10 amp. that's what it was from the factory. maybe this is important: the fuse blew after just 3 months of first owning the bike before i had ever done anything electrical to it, but it may have been a different 10a fuse because it only knocked out my tail light at the time.

UPDATE:
so i found a couple unused wires from my BACK OFF brake modulator which the ends were slightly exposed and taped them off, but they've always been there like that for at least a year. i replaced the fuse again, turned the key on, and now my brake signal was working again. then i turned the ignition and it immediately blew. the first time i replaced the fuse, my headlight was on for a few seconds before blowing.

i don't know if i want to be taking my bike apart so i can follow every single wire since i'm not that skilled in electrics to begin with and it's a big undertaking and very time consuming. thanks for the tip on the battery voltage, but would that just affect one fuse? i don't have a voltage meter to even check it. think i may just have to take it in to the dealer, or take it back to my painter since he's the last to have touched my electrical system and have a pro check it out.
Bevo, like you I am no auto electrician and have had my share of elec problems, mine were with the rear loom to blinkers and tail/brake light. I never had the problem till I removed the rear fender for colour matching, after replacing the rear fender a 'back feed' developed, I would put on the brakes and the indicators would both glow as if they were the brakes, and the tailight, brakes would not operate at all. After much frustration I had the rear loom looked at (mates rates) a mate of mine who owns a hydraulics company had his elec look and service it, and it is better but still temperamental with a short that causes a minor flash in the opposite indicator when I place the left one on. Like Stratowart said, and I know its a pain but a check of each individual wire may reveal and exposure, and check the couplings as they can be notorious for shorting if not connected correctly. I'm in the process of having all mine soldered instead of crimped. Don't know if any of this will be of use but hope you can get it sorted soon, bloddy frusting I know.
 

·
Registered
Joined
·
1,530 Posts
Does anyone have a wiring print of the 950. I've done electrical for 26yrs but without a print and being remote it's like finding the lights switch somewhere in the stadium at gametime. Get me a print and I'll guide you through the process.
 

·
Registered
Joined
·
2,904 Posts
I looked online for a print and only found a poor one and not much help at all. It did show the headlight as a 15a and the turn signals at 10a with the horn on that cir. With out a print there is not much to do :eek:
 

·
Registered
Joined
·
1,531 Posts
Headlight fuse

I could not find a manual for the 950 but the manual for the 1300 calls for 20 amp fuse in the head light. (On Paul Milner's site. )

If you fuse to close to the actual current the in-rush at power up will blow the fuse. If you have an amp meter you can measure the current at the fuse then double it.

Dave
 

·
Registered
Joined
·
1,531 Posts
Owners manual

I went to Starmotorcycles dot com. parts and service, looked at the owners manual for a 2010 V Star 950 T.

http://www.starmotorcycles.com/assets/service/manuals/2010/LIT-11626-23-55_VStar950_Tourer_2010_1701.pdf

Page 7-28 of the owners manual lists the fuse Amp ratings. The head light fuse is 20 Amp for the 950 V Star.

The result of a fuse too big would be that if the fuse was needed due to a short something could burn up, like maybe wires, plastic, etc.

I would suspect if you have the wrong fuse someone got two fused mixed up. You might check that all your fuses are the right size. The are listed in your owners manual. Your 20 Amp fuse may be in a slot that is suposed to be a 10 Amp.

Dave
 

·
Administrator
Joined
·
13,308 Posts
Discussion Starter #12
if that's the case, then the painter must have switched out the fuse because i haven't touched my fuses since i replaced one nearly 2 years ago and it was a 10a. and if the wrong size fuse is the problem then how would it work fine for a month before causing problems now?
 

·
Administrator
Joined
·
13,308 Posts
Discussion Starter #13
UPDATE:

my painter said he found the short. the connector for the rear turn signals he installed had fallen off leaving exposed wire rubbing against my tire. he will have it fixed tomorrow and I assume won't charge me anything since he says it was his fault.
 

·
Registered
Joined
·
239 Posts
UPDATE:

my painter said he found the short. the connector for the rear turn signals he installed had fallen off leaving exposed wire rubbing against my tire. he will have it fixed tomorrow and I assume won't charge me anything since he says it was his fault.
I'm happy for you Bevo! You must have been some disheartened with getting the bike back and having that happen for the first showing. Good luck with it.


:)
 

·
Administrator
Joined
·
13,308 Posts
Discussion Starter #15
I'm happy for you Bevo! You must have been some disheartened with getting the bike back and having that happen for the first showing. Good luck with it.


:)
thanks. yeah it sucked that it happened on my way to the rally, but it's just one rally and was easily fixed and i was lucky that i noticed it in the daylight and didn't have to ride home at night w/o any lights
 
1 - 15 of 15 Posts
Top