Changing Spark Plug grade after Dyno

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Angelo
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Thu May 12, 2016 10:20 am

I had my SS180 dyno's at Scooterotica last year and set up lovely. However it tends to foul plugs every now and then. Dan told me that it would be one of two things; either too much oil in the petrol or wrong spark plug grade.

If I was to change the spark plug grade now, would that mess up the setting that the dyno advised to run with?

mick1
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Thu May 12, 2016 10:31 am

probably not. The dyno is good for checking power and torque, and also the timing/air/fuel mixture, etc. Changing the plug is more a "heat" issue which (and I may stand corrected) the Dyno doesn't usually check.

it's quite common for riders to change plugs to suit driving conditions (round town/motorway) without changing other settings.

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Bofs
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Thu May 12, 2016 2:00 pm

What plug is it?

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Angelo
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Thu May 12, 2016 2:07 pm

An NGK B6ES is in now.. I was gonna change it to an NGK B7ES.

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rosscla
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Sun May 22, 2016 12:22 pm

That will probably help
"Our dilemma is that we hate change and love it at the same time; what we really want is for things to remain the same but get better."

bazza3004
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Sun Aug 28, 2016 4:19 pm

Is the B7 not a cooler running plug than the B6 ? If so would that not make the plug foul up more.

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Donnie
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Sun Aug 28, 2016 6:49 pm

it is but im a bit surprised a B6 is in in the first place!!
Donnie.

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Donnie
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Sun Aug 28, 2016 6:59 pm

Even more worrying when looking at a copy of the ss180 specs on Scooterhelp.com it specifies a bosch W240T2 which is not made anymore but when cross referenced is actually a B8es which is what I thought should be in there in the first place.

So hopefully, the owners eyesights at fault and has mistaken an 8 for a 6 :o
Donnie.

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