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 Roller Tappets - Routine Service...

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Steak
L'Innominato
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Age : 52

PostSubject: Roller Tappets - Routine Service...   Fri May 09, 2014 10:15 pm

Still have lots of photos and video to organize from the big Utah/Colorado/Arizona loop, but when we got back to California both the Stelvio and the GRiSO were due for service.

Here are a few shots of interest for Beetle - Spark Plug lookies:

Don's Stelvio running the Stelvio-8V-FU2-1Lambda-A1CB.2014.04.25.bin map.

Left Plug
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Right Plug
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Photos of 2012 GRiSO 1200SE Diavolo Nero Roller Tappets
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And here are shots of my plugs running the Griso24S-FU2-8A12.2014.04.24.bin Map:

Left Plug:
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Right Plug:
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Here are two shots of the zip-tie trick to make plug boot removal a bit easier during the next service.
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Along with lubing the boot inside and outside on the sealing ribs for the easy slip. Around the lip, for the big dip...
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The vestigial tail...
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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: Roller Tappets - Routine Service...   Fri May 09, 2014 10:54 pm

Hmmm, Stelvio looks like its a bit lean, GRiSO looks like its way rich. Was a lot of the ride done at higher altitudes?

Pete
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Steak
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PostSubject: Re: Roller Tappets - Routine Service...   Sat May 10, 2014 12:01 am

Pete Roper wrote:
Hmmm, Stelvio looks like its a bit lean, GRiSO looks like its way rich. Was a lot of the ride done at higher altitudes?

Pete

Yes, a great deal of the ride was at altitudes from 4,000 - 8,000 feet (1,200 - 2,400 M)

Additionally, the GRiSO plugs were at the end of their (extended) service life.

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2012 MOTO GUZZI GRiSO 1200SE

2013 MOTO GUZZI STELVIO 1200NTX - Orange Blossom Special
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beetle
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PostSubject: Re: Roller Tappets - Routine Service...   Sat May 10, 2014 12:58 am

The Stelvio plugs were kind of what I expected - a bit lean. I've already sent out the updated map.

The GRiSO plugs aren't too bad, given that they have also been coloured by the stock map over a long period. I'd be interested to see them after a new plugs are installed.

What were the temps like at the higher elevations? I already knew that the existing air-pressure-temp table wasn't that great at high altitudes (thanks to rboe), running lean above 5000 feet in 100 degree weather.
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Steak
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PostSubject: Re: Roller Tappets - Routine Service...   Sat May 10, 2014 2:27 am

Agreed Mark, re. the GRiSO plugs. Temps were typically in the 70s-80s daytime and 50s in the mornings/evenings with sections in the 40s at higher elevations.

Once I get back to Seattle this week, I will pull the new plugs to see what's what.

Don's Stelvio is running pretty good right now, yesterday we gapped the valves and replaced fluids, and this morning we synched the TBs. We'll fire in the newest map before a bit of riding tomorrow to see how things go.

As things get dialed in, we're seeing a new found love once again for the mighty Stelvio.

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2012 MOTO GUZZI GRiSO 1200SE

2013 MOTO GUZZI STELVIO 1200NTX - Orange Blossom Special
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beetle
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PostSubject: Re: Roller Tappets - Routine Service...   Sat May 10, 2014 4:08 am

The cooler temps up high is why you didn't bitch at me about hot legs and surging. Very Happy

At those temps, AFR would have been good. Once it gets hot and you go up in the hills, you may want to curse a bit. I fix.

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Pete Roper
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PostSubject: Re: Roller Tappets - Routine Service...   Sat May 10, 2014 8:36 am

beetle wrote:

The GRiSO plugs aren't too bad, given that they have also been coloured by the stock map over a long period. I'd be interested to see them after a new plugs are installed.
.

True dat. I know that map hauls ass at the top end.

Pete
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Steak
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PostSubject: Re: Roller Tappets - Routine Service...   Sat May 10, 2014 4:09 pm

Pete Roper wrote:
beetle wrote:

The GRiSO plugs aren't too bad, given that they have also been coloured by the stock map over a long period. I'd be interested to see them after a new plugs are installed.
.

True dat. I know that map hauls ass at the top end.

Pete

 Shocked  What a Face  Very Happy  Thumbs Up 

Look, 71℉ and it's almost lunchtime...
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Look, finally over 10,000 miles on the Diavolo Nero!
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2012 MOTO GUZZI GRiSO 1200SE

2013 MOTO GUZZI STELVIO 1200NTX - Orange Blossom Special
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Uzidzit
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PostSubject: Re: Roller Tappets - Routine Service...   Sat May 10, 2014 8:13 pm

The stelvio plugs look about normal for a fuel that has 10% ethanol in it, with a afr about 12.6-13.6.

at least compared to what my stelvio plugs look like I would be curious to try your stelvio map as well, if it is configured for a twin sensor, If not I can alter for the twin sensor xdf.
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beetle
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PostSubject: Re: Roller Tappets - Routine Service...   Sat May 10, 2014 10:27 pm

Jon, I already have a twin lambda Stelvio map. I'll send it to you to try. There's another user who has it too, but he hasn't been able to test it yet. You two are my first.  Embarassed 


Steak, 135 mph? hmmmm.....  Twisted Evil cheers 
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cytocycle
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PostSubject: Re: Roller Tappets - Routine Service...   Sat May 10, 2014 11:16 pm

Steak, I love that Max feature on the GRiSO...  
it reminds you what a hooligan you were, even if you don't know where that that took place because you were still on the Gas!
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Uzidzit
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PostSubject: Re: Roller Tappets - Routine Service...   Sun May 11, 2014 1:19 am

The fun part of messing with the map is you can have the worlds fastest GRiSO....they go faster with that French olive oil Wink 
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Steak
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PostSubject: Re: Roller Tappets - Routine Service...   Mon May 12, 2014 3:57 am

Bangin' off the rev limiter out in Utah somewhere...

 afro 

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2012 MOTO GUZZI GRiSO 1200SE

2013 MOTO GUZZI STELVIO 1200NTX - Orange Blossom Special
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