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Old 09-23-2013, 04:43 PM   #1
D-Man
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Ducati backfiring

Concerned about backfiring from my 2012 Multistrada. Bought it used a couple of weeks ago. Here are the specs:

2012 Multistrada 1200S Touring
Motor- 1198cc, "Testastretta 11" (same as Diavel)
21K miles now, 20K when purchased (I know, I know......but it was loaded out with extras, well-maintained, brand new tires, and I got a pretty good deal. Somebody REALLY loved riding to put 20K on this thing in a year and a half)
Maintenance: verified the valve adjustment was done at 15K as scheduled, not sure about the rest, though
Full Termignoni system: full "racing" exhaust, new ECU, air filter

So about the backfiring: It happens, basically, when I don't let the bike warm up. Anytime it's been sitting, for even an hour or two. I get on, it starts up fine, idles fine. If I take off, though, it'll pop pretty loudly for the first 5 min or so of the ride, especially on hard deceleration, as I roll off the throttle, or even just idling at a stop light. The rider behind me even noticed it on the ride yesterday. Once it gets warmed up, though, she runs like a dream.

Otherwise, I love the sound of the Termi, and so the popping doesn't bother me that much. Probably annoys other drivers, though. I find it annoying enough, though, that I make myself go out 5 min before I want to go anywhere and start the bike. Since this is my daily rider, sometimes this is several times a day- and a good amount of gas, over time. This is already getting old, but maybe this is something I should be doing for the bike anyway??

Anyways. Does anybody out there know of other Ducatis having this issue? Is it normal for the motor? Due to the Termi system? Just wanting to see if I should have this checked out or something. This is my 1st Ducati, first V-Twin, and first large-displacement bike, so I wouldn't really know.
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Old 09-23-2013, 04:49 PM   #2
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I see it says new ECU. Was it tuned for the full exhaust system? If not that is probably your issue.
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Old 09-23-2013, 05:02 PM   #3
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I think the ECU is part of the exhaust package when dealing with Termi and Ducati...it could be the bike warming up and running very rich....
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Old 09-23-2013, 05:12 PM   #4
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Yes, I know the ECU is the one that came with the Termi. When u start it up you can tell. It flashes "MTS 1200 Racing" across the screen. From what I've seen, the stock ECU would just say "MTS 1200". Or something like that.
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Old 09-23-2013, 05:18 PM   #5
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Do they offer a power commander in addition to aftermarket ECU you have? It seems like you may be running rich as described in the above post (at warmup this is not a problem though)

You may wanna go see andy at metric motorcycles in the heights chances are he can get your bike sorted.
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Old 09-23-2013, 08:46 PM   #6
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Doesn't sound too serious.
Swing by and I'll give it a listen, no charge.
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Old 09-23-2013, 11:44 PM   #7
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Maybe an exhaust gasket? I know it sounds stupid. But I had a bad backfiring issue before. Put in some new gaskets and fixed the issue.
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Old 09-24-2013, 12:03 AM   #8
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power commander could help? since you have a full exhaust system on there.
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Old 09-24-2013, 03:47 AM   #9
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Quote:
Originally Posted by Umayr View Post
power commander could help? since you have a full exhaust system on there.
Isnt a flashed ecu the same as getting a PC?
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Old 09-24-2013, 11:17 PM   #10
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Quote:
Originally Posted by CombatM0NKEY View Post
Maybe an exhaust gasket? I know it sounds stupid. But I had a bad backfiring issue before. Put in some new gaskets and fixed the issue.
+
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Old 09-24-2013, 11:18 PM   #11
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Quote:
Originally Posted by CombatM0NKEY View Post
Maybe an exhaust gasket? I know it sounds stupid. But I had a bad backfiring issue before. Put in some new gaskets and fixed the issue.
+1
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Old 09-25-2013, 12:56 AM   #12
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Quote:
Originally Posted by CombatM0NKEY View Post
Maybe an exhaust gasket? I know it sounds stupid. But I had a bad backfiring issue before. Put in some new gaskets and fixed the issue.
Thanks for all the help, guys. Also, another observation:

When I first start it up cold, and put my hand at the end of the silencer, I can feel it coming in "spurts" if you know what I mean- bursts of pressure here and there. Once it's warmed up, I can't feel this.

About the gaskets:

1. Would this only cause backfiring when the bike's cold? Seems like if the gasket were bad, the harder I pushed it the more it would backfire.

2. Is there an easy way to check for this? One involving soapy water or something? I can see and get to the front cylinder gasket easily, but the rear one doesn't look like it would be easy to get to, at all.

And about the ECU theory:

Is there somebody who could hook up a computer and see if it's running rich or something? Somebody short of a dealer, preferably. Everything on this bike's controlled by the computer: ride-by-wire throttle, fuel injection, etc, so it seems like this would be quick and easy to diagnose, if one had the right equipment. The ECU's made by Mitsubishi, but would they need a computer that speaks Ducati?
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Old 09-25-2013, 05:17 AM   #13
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Quote:
Originally Posted by Umayr View Post
power commander could help? since you have a full exhaust system on there.
No Ducatis come with seperate ECUs for the new exhausts...

Quote:
Originally Posted by D-Man View Post
Thanks for all the help, guys. Also, another observation:

When I first start it up cold, and put my hand at the end of the silencer, I can feel it coming in "spurts" if you know what I mean- bursts of pressure here and there. Once it's warmed up, I can't feel this.

About the gaskets:

1. Would this only cause backfiring when the bike's cold? Seems like if the gasket were bad, the harder I pushed it the more it would backfire.

2. Is there an easy way to check for this? One involving soapy water or something? I can see and get to the front cylinder gasket easily, but the rear one doesn't look like it would be easy to get to, at all.

And about the ECU theory:

Is there somebody who could hook up a computer and see if it's running rich or something? Somebody short of a dealer, preferably. Everything on this bike's controlled by the computer: ride-by-wire throttle, fuel injection, etc, so it seems like this would be quick and easy to diagnose, if one had the right equipment. The ECU's made by Mitsubishi, but would they need a computer that speaks Ducati?
Well cold the gasket could leak then when it heats up it expands and seals it up. Take it to Patrick at Motorcycles Unlimited. I still think its normal operation...
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Old 09-25-2013, 08:19 AM   #14
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Quote:
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Isnt a flashed ecu the same as getting a PC?
No...
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Old 09-25-2013, 10:37 AM   #15
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Fueling on termi ecu is . My old hyper had a termi ecu and it still bucked and popped like mad. You can contact motowheels in commiefornicate for a reflash. That fixed all my problems. Assuming of course that there isn't anything actually wrong with the bike.

Best thing I ever did with my Ducati was get rid of it.

Good luck
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