Sooty spark plugs

Maestro, SEI-V
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Darmah860
Posts: 6
Joined: 23 May 2023 13:55
Location: Middlewhich
Location: Middlewich Cheshire

Sooty spark plugs

Post by Darmah860 »

Morini 500 with sooty spark plugs BP7EVX came with K&N Type air filter and two into one exhaust, would a hotter plug be the way to go, not checked the jets yet?
norbert
Posts: 752
Joined: 15 May 2007 15:15
Location: Lübeck/Germany

Re: Sooty spark plugs

Post by norbert »

I would think it´s more a question of carburation than changing the plugs
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Ming
Posts: 799
Joined: 01 Aug 2014 16:32
Location: France
Location: Central France

Re: Sooty spark plugs

Post by Ming »

New members normally introduce themselves before asking questions.
Darmah860
Posts: 6
Joined: 23 May 2023 13:55
Location: Middlewhich
Location: Middlewich Cheshire

Re: Sooty spark plugs

Post by Darmah860 »

Sorry thought I had done,
New member with a 500 sport also two Ducati's and a triumph
Emmohaswheelsagain
Posts: 358
Joined: 28 Jun 2008 21:13
Location: Lincolnshire

Re: Sooty spark plugs

Post by Emmohaswheelsagain »

Welcome to the forum.
You should find plenty of advice here.
Worth checking previous posts as many problems are common to living with 40 year old motorcycles.
Whilst this advice is worthwhile your bike will be unique to some extent, for example jet sizes vary greatly, mine has a 118 main jet when the standard is a 125. With a 2 into 1 exhaust and K & N’s jetting is likely to be non standard.
I prefer standard but understand that it is not always possible particularly if your standard air box has been replaced.
Regarding plugs I have just replaced 8’s for 7’s but then again I am running standard exhausts and air box.


Regards

Paul
Darmah860
Posts: 6
Joined: 23 May 2023 13:55
Location: Middlewhich
Location: Middlewich Cheshire

Re: Sooty spark plugs

Post by Darmah860 »

Thanks Paul will have a look at the jets
Ta Si
MickeyMoto
Posts: 2431
Joined: 22 Nov 2008 17:41
Location: Even further oop North

Re: Sooty spark plugs

Post by MickeyMoto »

Do the sooty plugs need a sweep?

I'll get me coat.
Darmah860
Posts: 6
Joined: 23 May 2023 13:55
Location: Middlewhich
Location: Middlewich Cheshire

Re: Sooty spark plugs

Post by Darmah860 »

Hahaha 🤣
Kamel
Posts: 176
Joined: 10 Feb 2020 22:31
Location: Zurich, Switzerland

Re: Sooty spark plugs

Post by Kamel »

Mmmm, yes, that does look sooty..

Sooty2011.png
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