Correct spark plug 1976 KZ750B

  • Steve AZ
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Correct spark plug 1976 KZ750B

24 Nov 2014 06:58
#654499
So, at the beginning of the original service manual in the specification section, it calls for a B6ES spark plug, but in another section on page 181 where it explains why plugs are hot and cold, it calls for a B8ES for normal riding. What s the right plug for this bike? I use pod filters and a 2into1 pipe if that makes any difference. Thanks
Phoenix, Az
1976 KZ750B1
1994 Moto Guzzi California 1100i
1971 Moto Guzzi ElDorado 850

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  • MFolks
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Re: Correct spark plug 1976 KZ750B

24 Nov 2014 11:51
#654521
A B6ES is a fairly hot plug, and a B7ES is a little colder. You'll need to check the sparkplugs to determine what the engine needs for proper combustion. And the Ethanol in todays gasoline, makes it hard to determine that.
1982 GPZ1100 B2
General Dynamics/Convair 1983-1993
GLCM BGM-109 Tomahawk, AGM-129A Advanced Cruise Missile (ACM)

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  • bountyhunter
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Re: Correct spark plug 1976 KZ750B

24 Nov 2014 12:55 - 24 Nov 2014 13:06
#654526
Steve AZ wrote: So, at the beginning of the original service manual in the specification section, it calls for a B6ES spark plug, but in another section on page 181 where it explains why plugs are hot and cold, it calls for a B8ES for normal riding. What s the right plug for this bike? I use pod filters and a 2into1 pipe if that makes any difference. Thanks
I think the B6ES is the correct plug for "combined" riding (city stop and go and expressway). If you ride only on the freeway, I think B7ES might be better but B6ES is definitely the plug specified in the FSM for the 750 twin for general usage. I have always run B6ES (35 years).
1979 KZ-750 Twin
Last edit: 24 Nov 2014 13:06 by bountyhunter.

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Re: Correct spark plug 1976 KZ750B

24 Nov 2014 13:05
#654528
My FSM says this about the plugs:


1979 KZ-750 Twin

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