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12425 - Established June, 2013 - all GRiSO, all the time...
 
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 New spark plugs, every year?

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Evilgarfield
Phang
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Triman023
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Triman023
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PostSubject: New spark plugs, every year?   New spark plugs, every year? Icon_minitime1Mon Dec 01, 2014 10:10 am

cyclops This is what the manual says, change em once a year. Is this what everyone does?
Or is it a conspiracy to sell expensive plugs? My other bikes had the plugs up to 10K
miles and they looked fine. Does the GRiSO wear them out faster?
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Pete Roper
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PostSubject: Re: New spark plugs, every year?   New spark plugs, every year? Icon_minitime1Mon Dec 01, 2014 10:51 am

No. Nor is there any need to use the platinum plugs suggested for the early models. Unless they give you grief they'll go a lot longer. Most cars nowadays have 50,000 mile plug change intervals. A higher revving engine like the GRiSO, (Well, higher than most cars.) will wear 'em out slightly quicker but yearly or 10,000 changes are a bit of overkill, as is swapping the brake lines every three years and that is suggested too for some reason???

Pete

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Triman023
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PostSubject: Re: New spark plugs, every year?   New spark plugs, every year? Icon_minitime1Mon Dec 01, 2014 11:01 am

Perhaps they get a cut from the companies that make these..

Must be some extra picky tech in the background somewhere..
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Steak
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PostSubject: Re: New spark plugs, every year?   New spark plugs, every year? Icon_minitime1Mon Dec 01, 2014 1:29 pm

The NGK Iridium plugs are a fine - CR8EIX (4218), and less expensive, substitute for the NGK Platinum long-life series.  I generally swap mine out every other fluid/valve adjustment/TB balance interval - or every 12,500 miles, but I do inspect them at every interval (6250 miles) when adjusting the valves.

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2012 MOTO GUZZI GRiSO 1200SE

2013 MOTO GUZZI STELVIO 1200NTX - Orange Blossom Special

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Grisonut
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PostSubject: Re: New spark plugs, every year?   New spark plugs, every year? Icon_minitime1Mon Dec 01, 2014 3:31 pm

I use the Iridium as well and plan to leave it there until I get to the 30K miles mark or so...

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Phang
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PostSubject: Re: New spark plugs, every year?   New spark plugs, every year? Icon_minitime1Mon Dec 01, 2014 9:38 pm

Mine are 20k km (12.5k miles) / 5 years.

I pulled the spark plugs of a 30k km (19k miles) Stelvio recently, stilling running on the plugs from the factory. Those NGK PMR8B has no obvious wear to my naked eyes as well as the gap gauge.

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Steak
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PostSubject: Re: New spark plugs, every year?   New spark plugs, every year? Icon_minitime1Tue Dec 02, 2014 3:00 am

My OEM NGK Platinum plugs after about 13K miles:

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2012 MOTO GUZZI GRiSO 1200SE

2013 MOTO GUZZI STELVIO 1200NTX - Orange Blossom Special

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Evilgarfield
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PostSubject: Re: New spark plugs, every year?   New spark plugs, every year? Icon_minitime1Wed May 05, 2021 11:15 pm

What plugs should I use for a GRiSO 1100 from 2007? I'm a bit lost with all these different types of plugs with different electrodes etc...
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GuzziSteve
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PostSubject: Re: New spark plugs, every year?   New spark plugs, every year? Icon_minitime1Thu May 06, 2021 3:38 pm

I like stock, outer--NGK BPR6ES inner---NGK PNR8B
If you haven't done the inside plugs, may be rusty & full of crud in the well. Blow out after cracking them loose.

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Oz1200Guzzi
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PostSubject: Re: New spark plugs, every year?   New spark plugs, every year? Icon_minitime1Thu May 06, 2021 4:06 pm

The inner plugs will rust and gather crud as others have said. Might be worth a very light coat of neverseize or similar on the threads to assist in removal "next time". I had my originals in for over 60,000 km - they were still good but I replaced them because of rust.

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burntclutch
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PostSubject: Re: New spark plugs, every year?   New spark plugs, every year? Icon_minitime1Sun May 09, 2021 5:36 am

it might be worth noting the inner will need a thin wall socket also

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Evilgarfield
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PostSubject: Re: New spark plugs, every year?   New spark plugs, every year? Icon_minitime1Tue May 11, 2021 2:33 am

GuzziSteve wrote:
...   inner---NGK  PNR8B ...

Funny, the spare part catalog for the 1100 gives the PNR8B as you wrote it but I can't find them online. Closest match is PMR8B.
Is that a typo in the spare catalog?

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GuzziSteve
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PostSubject: Re: New spark plugs, every year?   New spark plugs, every year? Icon_minitime1Sun Jun 27, 2021 10:25 pm

We don't have any issue in USA, check with TeoLamers.
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paulbrice
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PostSubject: Re: New spark plugs, every year?   New spark plugs, every year? Icon_minitime1Mon Jun 28, 2021 2:30 am

Apparently both names are used ....see below from Gutsibits website

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