Ducati Monster Forum

Moto Board => Tech => Topic started by: teddy037.3 on January 04, 2012, 01:23:53 PM

Title: burning smell while riding?
Post by: teddy037.3 on January 04, 2012, 01:23:53 PM
so yesterday, I rode the bike to work. both to and from, I noticed a burning smell. not oil burny. has not been there prior to yesterday morning.  got home, ran the bike in N and looked/sniffed around. didn't see any melty wiring or drips/leaks/smokes. nothing. oil level was high, nothing weird by the batt under the seat.

ben thinks voltage regulator? when they go, is it internal?  new bike, btw... '11 HYM796, 1300 miles, on-time 1st service at the dealer.

only mods are mirrors, windscreen, pazzos, progrips, axle sliders, yoinked emission can (at service)

???
Title: Re: burning smell while riding?
Post by: zooom on January 04, 2012, 01:28:54 PM
did you check your riding pants and boots?
Title: Re: burning smell while riding?
Post by: Raux on January 04, 2012, 01:29:46 PM
put it on a rear stand,  put it in gear and see if your rear brake is binding.
Title: Re: burning smell while riding?
Post by: teddy037.3 on January 04, 2012, 01:55:15 PM
Quote from: zooom on January 04, 2012, 01:28:54 PM
did you check your riding pants and boots?

yes, boots and pants were fine

Quote from: Raux on January 04, 2012, 01:29:46 PM
put it on a rear stand,  put it in gear and see if your rear brake is binding.

would it randomly start to bind, though?  I haven't changed anything there.
Title: Re: burning smell while riding?
Post by: WTSDS on January 04, 2012, 02:31:16 PM
If it is yer rear brake this may be of use -

http://www.ducatimonsterforum.org/index.php?topic=46781.0 (http://www.ducatimonsterforum.org/index.php?topic=46781.0)

Title: Re: burning smell while riding?
Post by: supperduc on January 04, 2012, 03:05:21 PM
Next time when you start her up, sniff around the timing belt covers.
Title: Re: burning smell while riding?
Post by: BK_856er on January 04, 2012, 11:40:38 PM
I got a burning plastic smell a few times.  Checked my boots - nothing.  Checked for something touching the exhaust - nothing.  Figured it was a passing car or something.  Not much later I discovered a very melty R/R connector.  I only noticed it because I was removing the alternator cover and I needed to disconnect that connector.  From the outside I might not have noticed it.  Had to ultimately cut it apart because it was melted together.

BK
Title: Re: burning smell while riding?
Post by: teddy037.3 on January 05, 2012, 01:41:48 AM
R/R?

don't have a rear stand, but I will check the belts after work...

Title: Re: burning smell while riding?
Post by: zooom on January 05, 2012, 04:26:43 AM
Quote from: teddy037.3 on January 05, 2012, 01:41:48 AM
R/R?

REGULATOR/RECTIFIER......

but I think that componentry is different from his bike to yours...
Title: Re: burning smell while riding?
Post by: Howie on January 05, 2012, 05:34:16 AM
The smell from a burning regulator is quite acrid, think burning plastic.
Title: Re: burning smell while riding?
Post by: TNWINESELLER on January 05, 2012, 06:23:28 AM
Quote from: teddy037.3 on January 04, 2012, 01:23:53 PM
so yesterday, I rode the bike to work. both to and from, I noticed a burning smell. not oil burny. has not been there prior to yesterday morning.  got home, ran the bike in N and looked/sniffed around. didn't see any melty wiring or drips/leaks/smokes. nothing. oil level was high, nothing weird by the batt under the seat.

ben thinks voltage regulator? when they go, is it internal?  new bike, btw... '11 HYM796, 1300 miles, on-time 1st service at the dealer.

only mods are mirrors, windscreen, pazzos, progrips, axle sliders, yoinked emission can (at service)

???



I rode my '11 Monster 796 yesterday for the first time in 2 weeks. Noticed the same burning smell. Chalked it up to not being ridden as i don't normally leave it sitting that long.
Title: Re: burning smell while riding?
Post by: teddy037.3 on January 05, 2012, 08:08:42 AM
Quote from: zooom on January 05, 2012, 04:26:43 AM
REGULATOR/RECTIFIER......

but I think that componentry is different from his bike to yours...

ah... so BK is in the same boat as drkwng (ben, in op)... the part looks to be the same, just not mounted in the same way as the old monsters. it's out in front, right above the oil cooler

Quote from: TNWINESELLER on January 05, 2012, 06:23:28 AM


I rode my '11 Monster 796 yesterday for the first time in 2 weeks. Noticed the same burning smell. Chalked it up to not being ridden as i don't normally leave it sitting that long.

it had been sitting for over a week. but wasn't really uncommon in my case... if everything else I check turns out to be ok, then you were right  :)
Title: Re: burning smell while riding?
Post by: BK_856er on January 05, 2012, 11:13:23 AM
Just to clarify, in my case it was not the R/R, but the connector on the pigtail to the R/R.  Those yellow wires from the alternator pass large current and tiny amounts of corrosion/resistance at the connector spades can generate lots of heat.  Ducati might have addressed this already in the modern bikes - I'm not too familiar with them.  But don't rule out high-current connectors in your investigations.

BK
Title: Re: burning smell while riding?
Post by: CrashAstern on January 05, 2012, 07:50:36 PM
Just my two cents, it could be dust burning off the exhaust and other hot components on the bike...

...at least that's what I assumed it was when I had experienced a similar odor  ???  hopefully that's all it was, for either of us.

It didn't smell like melting plastic or insulation (wiring) to me - and the bike /was/ dusty, and it went away after a ride or two/wiping it off.

Hope that helps!
Title: Re: burning smell while riding?
Post by: OT on January 05, 2012, 09:49:03 PM
I presume it only smelled when you were stopped, not riding at speed?

Check to see that all the lights, especially the headlight (hi and lo), are working while the bike is running.  The ground wire inside my headlight shorted out on the metal housing and burned; I experienced the problem and started smelling it when I arrived back home, after the 15 mile ride from the gym, in the dark, on an unlit road, with no headlights... :o  I wouldn't have noticed it during daylight hours without the smell...duh.
Title: Re: burning smell while riding?
Post by: teddy037.3 on January 05, 2012, 09:55:24 PM
le update:

belts look fine, nothing obvious as far as wear or anything from rubbing/over tensioned

regulator seemed ok, the wires/connector going into it were fine

took it on a 15 minute shakedown, couldn't recreate the smell, and the brake is not dragging.

it IS horribly dirty, though. the last few rides had been in passing/post rain

the only odd thing I noticed was one of the hoses from the airbox looked crusty/yellow at the metal fitting to the box.

airbox > fitting (crusty at start of hose) > hose between intakes >some split to the intakes for each cyl.

:edit: crusty joint is apparently the stepper motor breather (watching ducatitech's hym796 gas tank videos)


Quote from: OT on January 05, 2012, 09:49:03 PM
I presume it only smelled when you were stopped, not riding at speed?

I could smell it while moving, and when I stopped the bike
Title: Re: burning smell while riding?
Post by: Thermite on January 06, 2012, 07:27:11 AM
We're you riding through Kalihi?  The whole place smells like burnt toast every day lately.
Title: Re: burning smell while riding?
Post by: teddy037.3 on January 06, 2012, 08:15:55 AM
Quote from: Carbon 14 on January 06, 2012, 07:27:11 AM
We're you riding through Kalihi?  The whole place smells like burnt toast every day lately.

nope. don't go past the airport.