spark tester

anyone know the name of the tool that you screw into the the sparkplug bit
(in line) thats lets u see the colour of the spark for testing for rich/weak
fuel mix.
thanks

 

Using the patented Mavis Beacon "Hunt&Peck" Technique, Juco

Gunson's Colourtune. Available from you local friendly Halfrauds.

Know which size of spark plug thread you need before you go to buy one.

 

Indeed. Now, remind me, Nigel - is it yellow for rich ... ?

 

Using the patented Mavis Beacon "Hunt&Peck" Technique, Pip

FOYRHB

 

Why not just look at your current plugs to see how the mixture is?
b

 

I have borrowed one so might as well try but need instructions ...anyone got
that can email to me
thanks

 

run engine 'til it's up to temperature, fit colortune plug, start engine,
look down hole. yellow = too rich, blue = good, white = too lean.

in practical terms, there's sod all you can do to most bike carbs other than
rejetting, or possibly changing needle positions or needles and jets.

but it's handing for checking.

remember to check each pot on >1 cylinder things with >1 carbs

 

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