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 Stelvio is giving me fits...

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Yodasoldier
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Steak
L'Innominato
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PostSubject: Stelvio is giving me fits...   Stelvio is giving me fits... Icon_minitime1Fri Apr 08, 2016 2:14 pm

OK, I'm spinning this off from the Ducati ECU thread.

So I'd been riding the Stelvio all winter without any issue. It then sat for a couple of weeks back in late February. I meant to take it for a ride but it struggled to start and wouldn't hold idle. Since the weather has been nice I've just been riding the GRiSO (happily) but now need to solve this Stelvio problem.

At first I thought it might be a mapping problem, so I've tried four different Stelvio maps without any luck. Checked both spark plugs (nearly new - performed routine service about 800 miles ago) getting spark, but the right side seems to be running rich compared to the left. I've checked and cleaned the ECU terminal connections, AOK. I've checked all battery and earth/ground connections, AOK. Installed a new battery yesterday as the old one seemed to be dropping voltage under load. Checked airbox and filter, getting good flow.

Now I'm a bit stumped as to what to try next. Here's a video of the currently trembling pile of shite...



Something any halfway decent mechanic would know on face value that I'm too inept to recognize? Any suggestions?

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2012 MOTO GUZZI GRiSO 1200SE

2013 MOTO GUZZI STELVIO 1200NTX - Orange Blossom Special
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Pete Roper
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PostSubject: Re: Stelvio is giving me fits...   Stelvio is giving me fits... Icon_minitime1Fri Apr 08, 2016 2:28 pm

Is the TPS moving smoothly?
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PostSubject: Re: Stelvio is giving me fits...   Stelvio is giving me fits... Icon_minitime1Fri Apr 08, 2016 3:17 pm

Yes, it is...

It also seems to be improving. I'm going to see if I can run the sputters out of it...

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2012 MOTO GUZZI GRiSO 1200SE

2013 MOTO GUZZI STELVIO 1200NTX - Orange Blossom Special
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https://www.grisoghetto.com
Pedro
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PostSubject: Re: Stelvio is giving me fits...   Stelvio is giving me fits... Icon_minitime1Fri Apr 08, 2016 3:18 pm

I had the sputters run out of me once. Vast improvement.
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PostSubject: Re: Stelvio is giving me fits...   Stelvio is giving me fits... Icon_minitime1Fri Apr 08, 2016 3:22 pm

Phase sensor?
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Yodasoldier
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PostSubject: Re: Stelvio is giving me fits...   Stelvio is giving me fits... Icon_minitime1Fri Apr 08, 2016 4:00 pm

That seems like my GRiSO with its water logged TPS.. Are the readings fine from the TPS in Guzzidiag?
Does it idle ok...but throttle makes it sick?
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PostSubject: Re: Stelvio is giving me fits...   Stelvio is giving me fits... Icon_minitime1Fri Apr 08, 2016 4:19 pm

Well there it is. Just needed to put the boots to her for a spell and run it out of her! Back to running like a top now.

And I got to try out a new camera mount. Fresh test video to follow.

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2012 MOTO GUZZI GRiSO 1200SE

2013 MOTO GUZZI STELVIO 1200NTX - Orange Blossom Special
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PostSubject: Re: Stelvio is giving me fits...   Stelvio is giving me fits... Icon_minitime1Fri Apr 08, 2016 4:32 pm

Weird? Perhaps you got a bung load of fuel? How long was it sitting? Ethenol fuels go off in next to no time, yet another reason they are shite!

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PostSubject: Re: Stelvio is giving me fits...   Stelvio is giving me fits... Icon_minitime1Fri Apr 08, 2016 4:34 pm

That could have been it. That and giving the new fuel filter and line time enough to settle in.

Still, all is groovy.

afro Viva la Fiesta

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2012 MOTO GUZZI GRiSO 1200SE

2013 MOTO GUZZI STELVIO 1200NTX - Orange Blossom Special
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PostSubject: Re: Stelvio is giving me fits...   Stelvio is giving me fits... Icon_minitime1Fri Apr 08, 2016 8:32 pm

Yeah Baby, yeah!!
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PostSubject: Re: Stelvio is giving me fits...   Stelvio is giving me fits... Icon_minitime1Fri Apr 08, 2016 10:54 pm

Blame ethanol. Works for me. Makes me feel better, whether it's true or not. F*ing pisswasser!
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GHTE
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PostSubject: Re: Stelvio is giving me fits...   Stelvio is giving me fits... Icon_minitime1Sat Apr 09, 2016 1:25 am

Love that Stelvio colour Steak
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PostSubject: Re: Stelvio is giving me fits...   Stelvio is giving me fits... Icon_minitime1Sat Apr 09, 2016 1:33 am

that camera mount is pulling vacuum? Because the tank cap has a small vent to the outside.
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PostSubject: Re: Stelvio is giving me fits...   Stelvio is giving me fits... Icon_minitime1Sat Apr 09, 2016 11:04 am

I don't think so Paul, it doesn't seal at all.  It's just a plate mounted to a GIVI Tanklock receiver.

If you were thinking that may have contributed to the fueling fits, I hadn't used the camera mount until after I got the fueling back under control.  I only finished building the mount yesterday. It's a little noisy/rattle-ly though. I'm going to have to dampen it a bit with some rubber grommets or somesuch.

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2012 MOTO GUZZI GRiSO 1200SE

2013 MOTO GUZZI STELVIO 1200NTX - Orange Blossom Special
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https://www.grisoghetto.com
 
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