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Author Topic: Pop! Smoke... but everything still works...  (Read 436 times)

eliross

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Pop! Smoke... but everything still works...
« on: June 12, 2018, 08:17:42 AM »

So just got my 2006 registered and road ready and get ready for my first drive. I hear a loud short near the front of gas tank and cloud of smoke. Killed the bike, grabbed an extinguisher but it was done smoking. Take the plastics off and can smell burnt electrics but don't immediately see anything. Checked the fuses, turned the bike on, dash, ignition, signals, horn, everything seems to work (I didn't check the fan I suppose). I'm about to pull the tank off and trace all the wiring and make sure the bike is charging with a meter. This is my first Hyosung and second bike, are there any usual suspects I should be checking? Thanks guys! Oh I'd also take recommendations on a mechanic down in Gwangju, Jollanamdo if anyone has one (all the bolts on this thing are stripped and plastics cracked from crap mechanics). 
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Christianleon266

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Re: Pop! Smoke... but everything still works...
« Reply #1 on: June 12, 2018, 08:40:13 AM »

Honestly you should be checking all of the electronics at that point. No amount of armchair troubleshooting is going to show you a shorted wire or non-functioning part. Typically the Reg/Rec goes on these but not usually with a loud bang or pop associated with boards letting the smoke out. They just stop charging.

It would be better to do the work yourself. It sounds like the mechanics are not to be trusted in your area.
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eliross

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Re: Pop! Smoke... but everything still works...
« Reply #2 on: June 12, 2018, 08:56:09 AM »

Yeah, I'm an amateur mechanic and electrics are a special kind of voodoo. I suppose it's a good time to learn. I was hoping someone with a little more experience might point me the right direction with what might blow during ignition. I'm just amazed that after the amount of smoke I saw the thing runs and no fuses blown. I feel like that should limit the possibilities but, once again, not really experienced enough to know exactly how. Thanks!
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Christianleon266

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Re: Pop! Smoke... but everything still works...
« Reply #3 on: June 12, 2018, 09:26:09 AM »

start running through the harness, smell and look for charred connections and wiring. Start and front of bike, go to rear. If something lets out smoke its usually dead shorted. So could be fan that went. Enough smoke and the dead item will have a smell.
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2007 Kawasaki KX250F
1984 Yamaha Virago
1982 Honda V45 Sabre
1996 Kawasaki ZX6R
2009 Kawasaki Ninja 250
1984 Honda V65 Magna (Favorite)
1982 Kawasaki KZ750E
2005 Suzuki M50
1983 Honda Goldwing Aspencade
2007 Hyosung GT250R
1991 Honda ST1100 (current)

Christianleon266

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Re: Pop! Smoke... but everything still works...
« Reply #4 on: June 12, 2018, 09:33:55 AM »

Actually, check left side cover near fuel tank.  Check that first. That is where a good chunk of electronics are housed for this bike. See this video for help.

https://www.youtube.com/watch?v=WX_GU17Xc0g
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2007 Kawasaki KX250F
1984 Yamaha Virago
1982 Honda V45 Sabre
1996 Kawasaki ZX6R
2009 Kawasaki Ninja 250
1984 Honda V65 Magna (Favorite)
1982 Kawasaki KZ750E
2005 Suzuki M50
1983 Honda Goldwing Aspencade
2007 Hyosung GT250R
1991 Honda ST1100 (current)

eliross

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Re: Pop! Smoke... but everything still works...
« Reply #5 on: June 12, 2018, 12:36:15 PM »

Thanks, that's the plan. I appreciate the advice.
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umop-ǝpisdn

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Re: Pop! Smoke... but everything still works...
« Reply #6 on: June 12, 2018, 12:59:56 PM »

My 2c.

Check the OIL for a burned electrical smell. If so, likely one of the phases in the stator died. The bike would still run as per normal.

Also check the reg/rec.
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I used to be a sensitive, new age guy, but times have changed and now I am more of a caring, understanding, ninties type.

eliross

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Re: Pop! Smoke... but everything still works...
« Reply #7 on: June 13, 2018, 06:19:30 AM »

Haven't had a chance to take the tank off and trace the wiring but I just remembered my helmet traffic cam was on so here are some action shots for your entertainment (sorry for the quality)
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Christianleon266

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Re: Pop! Smoke... but everything still works...
« Reply #8 on: June 13, 2018, 09:01:13 AM »

Jesus. Are you sure that's electrical?
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2007 Kawasaki KX250F
1984 Yamaha Virago
1982 Honda V45 Sabre
1996 Kawasaki ZX6R
2009 Kawasaki Ninja 250
1984 Honda V65 Magna (Favorite)
1982 Kawasaki KZ750E
2005 Suzuki M50
1983 Honda Goldwing Aspencade
2007 Hyosung GT250R
1991 Honda ST1100 (current)

umop-ǝpisdn

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Re: Pop! Smoke... but everything still works...
« Reply #9 on: June 13, 2018, 10:12:46 AM »

Holy smokes!  ::)

You'd definitely smell it if it was electrical. There's no mistaking that smell.

If you didn't get 'that smell', then perhaps it was a backfire through the carb? ..the mother of all backfires through the carb?

Based on the location of the smoke, if it is electrical, I would guess that it's the radiator fan.
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I used to be a sensitive, new age guy, but times have changed and now I am more of a caring, understanding, ninties type.

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