SuzukiSavage.com - Blown Main Fuse

Digger

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Ya gotta be tough to
ride singles!

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Colorado Springs, CO
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Blown Main Fuse
05/20/10 at 21:26:24

Just relating a recent experience:

I recently had the fuel tank off of my scoot (see signature). When I slapped 'er back together, I blew a main fuse when I first turned on the ignition switch.

Put a new one in (sometimes they just blow). This time, I was able to start the bike, but the fuse blew again when I revved the engine a bit.

This time, I took the gas tank back off, checked all the wires (nothing jumped out at me), and slapped 'er back together.

End of problem.

Queertrons? You make the call.

Y'all ride safe out there!

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Digger
2001, Metallic Glacial Blue, Raptor Petcock, Verslavy (first hole) (otherwise, mechanically, the bike is stock), 13,xxx miles
I don't own a cage.
www.astronautbiker.com

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verslagen1 YaBB Moderator ModSquad Offline Where there's a will, I want to be in it. Posts: 28780 L.A. California Gender:	Re: Blown Main Fuse Reply #1 - 05/20/10 at 21:34:58 probably 2 wires pushed together somewhere. it'll come back to haunt you someday.
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Serowbot YaBB Moderator ModSquad Offline OK.... so what's the speed of dark? Posts: 28385 Tucson Az Gender:	Re: Blown Main Fuse Reply #2 - 05/20/10 at 22:43:55 No I deer,... but,.. about a year ago, I had a short in a solder joint on an Led turn signal bulb circuit board (...that's inside the, "bulb"!),... and it set about six feet of wiring, from the light,to under the seat, up to the gas tank on fire... Hot tushy at the traffic light!... ...amazing what a little short can do... ...
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T Mack 1 - FSO Serious Thumper Alliance Member Offline sold 2001 LS650 for a 1986 XLH1100 Posts: 2919 Emmaus,Pa Gender:	Re: Blown Main Fuse Reply #3 - 05/21/10 at 11:29:28 Check the wires at the headlight bucket. It's a know wear point and can cause blown fuses. Removing the tank giggles the harness that goes to the bucket. Maybe the first time caused the short, and playing with the tank a second time may have moved the wire far enough away. I agree with Verslagen, it may come back to haunt you....
Back to top	Engineers design things, Technicians make them work. --- 30% of being mechanical is confidence/30% is knowing to go slow when needed/30% is looking repeatedly at what you have/10% is dumb luck IP Logged

Digger

Serious Thumper
2005 No Login

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Ya gotta be tough to
ride singles!

Posts: 1604
Colorado Springs, CO
Gender: male

Re: Blown Main Fuse
Reply #4 - 05/21/10 at 18:27:16

T Mack 1 - FSO wrote on 05/21/10 at 11:29:28:

Check the wires at the headlight bucket. It's a know wear point and can cause blown fuses.

Removing the tank giggles the harness that goes to the bucket. Maybe the first time caused the short, and playing with the tank a second time may have moved the wire far enough away.

I agree with Verslagen, it may come back to haunt you....

Hi T,

Are you talking about the point where the wires actually enter the shell?

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Digger
2001, Metallic Glacial Blue, Raptor Petcock, Verslavy (first hole) (otherwise, mechanically, the bike is stock), 13,xxx miles
I don't own a cage.
www.astronautbiker.com

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Phelonius Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 1897	Re: Blown Main Fuse Reply #5 - 05/21/10 at 18:38:28 Mine was where the wire loom runs under the tank. It had chaffed through and grounded on the frame. Pheloniu
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T Mack 1 - FSO

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Alliance Member

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sold 2001 LS650 for
a 1986 XLH1100

Posts: 2919
Emmaus,Pa
Gender: male

Re: Blown Main Fuse
Reply #6 - 05/23/10 at 14:22:21

Digger wrote on 05/21/10 at 18:27:16:

T Mack 1 - FSO wrote on 05/21/10 at 11:29:28:

Check the wires at the headlight bucket. It's a know wear point and can cause blown fuses.

Removing the tank giggles the harness that goes to the bucket. Maybe the first time caused the short, and playing with the tank a second time may have moved the wire far enough away.

I agree with Verslagen, it may come back to haunt you....

Hi T,

Are you talking about the point where the wires actually enter the shell?

Hi Digger,
Yes. I just re-looked at the parts microfische and it doesn't show a grommet there. even though the bucket is plastic the chrome coating is conductive.

And you should look at were the wires pass the triple trees. Like Phelonius said, look for chaffing. Wear marks in the frame paint is a good sign of rubbing.

T Mack

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Engineers design things, Technicians make them work.
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30% of being mechanical is confidence/30% is knowing to go slow when needed/30% is looking repeatedly at what you have/10% is dumb luck Wink

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Digger

Serious Thumper
2005 No Login

Offline

Ya gotta be tough to
ride singles!

Posts: 1604
Colorado Springs, CO
Gender: male

Re: Blown Main Fuse
Reply #7 - 05/23/10 at 18:53:52

OK...I caved to the doom merchants. Off came the seats, the tank, and the headlight lens assy.

I made a circuit checker that plugs into the main fuse receptacle. It powers a 12v light bulb with the juice that would be flowing the fuse. Had to disconnect the headlight bulb and taillight bulbs to make the tool more useful (otherwise, the tester's bulb was full bright whenever the ignition switch was turned on).

No smoking gun yet. I'm taking this opportunity to tape wire bundles as needed.....and the need is great.

The factory wiring job on this thing is somewhat less than stellar, to say the least.

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Digger
2001, Metallic Glacial Blue, Raptor Petcock, Verslavy (first hole) (otherwise, mechanically, the bike is stock), 13,xxx miles
I don't own a cage.
www.astronautbiker.com

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Digger Serious Thumper 2005 No Login Offline Ya gotta be tough to ride singles! Posts: 1604 Colorado Springs, CO Gender:	Re: Blown Main Fuse Reply #8 - 05/25/10 at 19:22:31 OK... Went through everything I could see under the tank and the seats. Also opened up the headlight nacelle. Never did find any damaged wire, but I did a lot of taping and reorganizing of wires. I dare another fuse to blow!
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Digger Serious Thumper 2005 No Login Offline Ya gotta be tough to ride singles! Posts: 1604 Colorado Springs, CO Gender:	Re: Blown Main Fuse Reply #9 - 03/30/13 at 21:25:44 Think I found what was causing my problem: http://suzukisavage.com/cgi-bin/YaBB.pl?num=1363989148/14#14
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Serowbot YaBB Moderator ModSquad Offline OK.... so what's the speed of dark? Posts: 28385 Tucson Az Gender:	Re: Blown Main Fuse Reply #10 - 03/30/13 at 23:46:15 3 years?... Not bad... Mine usually catches fire within 6 months... ...
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