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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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Triman023
Tiradritto
Tiradritto
Triman023

Posts : 302
Join date : 2014-06-05
Age : 71

New spark plugs, every year? Empty
PostSubject: New spark plugs, every year?   New spark plugs, every year? Icon_minitime1Mon Dec 01, 2014 2:10 pm

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
GRiSO Capo
GRiSO Capo
Pete Roper

Posts : 7971
Join date : 2013-05-29
Age : 64

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PostSubject: Re: New spark plugs, every year?   New spark plugs, every year? Icon_minitime1Mon Dec 01, 2014 2:51 pm

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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Triman023

Posts : 302
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Age : 71

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

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
L'Innominato
L'Innominato
Steak

Posts : 2856
Join date : 2013-05-28
Age : 56

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PostSubject: Re: New spark plugs, every year?   New spark plugs, every year? Icon_minitime1Mon Dec 01, 2014 5:29 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
GRiSO
GRiSO
Grisonut

Posts : 1368
Join date : 2014-01-02

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PostSubject: Re: New spark plugs, every year?   New spark plugs, every year? Icon_minitime1Mon Dec 01, 2014 7:31 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
Biondino
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Phang

Posts : 212
Join date : 2013-11-22
Age : 48

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PostSubject: Re: New spark plugs, every year?   New spark plugs, every year? Icon_minitime1Tue Dec 02, 2014 1:38 am

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
L'Innominato
L'Innominato
Steak

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Join date : 2013-05-28
Age : 56

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PostSubject: Re: New spark plugs, every year?   New spark plugs, every year? Icon_minitime1Tue Dec 02, 2014 7:00 am

My OEM NGK Platinum plugs after about 13K miles:

Left
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Right
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2012 MOTO GUZZI GRiSO 1200SE

2013 MOTO GUZZI STELVIO 1200NTX - Orange Blossom Special
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Evilgarfield
Tanabuso
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Evilgarfield

Posts : 90
Join date : 2021-03-25

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PostSubject: Re: New spark plugs, every year?   New spark plugs, every year? Icon_minitime1Thu May 06, 2021 2:15 am

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
Fra Cristoforo
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GuzziSteve

Posts : 411
Join date : 2016-04-14

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PostSubject: Re: New spark plugs, every year?   New spark plugs, every year? Icon_minitime1Thu May 06, 2021 6:38 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
Don Abbondio
Don Abbondio
Oz1200Guzzi

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Age : 66

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PostSubject: Re: New spark plugs, every year?   New spark plugs, every year? Icon_minitime1Thu May 06, 2021 7:06 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
GRiSO Capo
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burntclutch

Posts : 48
Join date : 2018-11-18

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PostSubject: Re: New spark plugs, every year?   New spark plugs, every year? Icon_minitime1Sun May 09, 2021 8:36 am

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

Posts : 90
Join date : 2021-03-25

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PostSubject: Re: New spark plugs, every year?   New spark plugs, every year? Icon_minitime1Tue May 11, 2021 5:33 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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