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19-11-22, 09:50 AM | #1 |
John T
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Spark plug codes
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09-01-23, 10:24 AM | #2 |
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Re: Spark plug codes
something else to remember is the temperature of a plug.
this is the ambient outside temperature rating not the running temperature of the bike. its the rating that the plug gets to, to stop fouling. cold spark plugs 10-13# are for hot climates. hot spark plugs 2-6# are used in cold climates. mid spark plugs 7-9# are used in temperate climates (e.g. the UK). so here in the UK we tend to use 7-9# and if you were really fussy and had a carbed running bike you could use 9-10# in the winter and drop to 7-8# in the summer. |
09-01-23, 03:31 PM | #3 |
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Re: Spark plug codes
That may be true for air-cooled bikes, but with water-cooling, the running temperature is fairly constant, due to thermostat and cooling fan.
Other factors which might require a change in heat range are significant engine modifications, such as increased compression ratio or super-charging. For us guys that don't do that kind of stuff, the best thing to do is simply follow Suzuki's recommendation.
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