Question about 1979 Yamaha XS 650 SF
One cylinder plug is lighter by far than other cylinder leen cylander
also backfires. 1982 xs650.
I had the same bike.there is a rubber line that connects the two carbs together.the carb with the lighter lean sparkplug is the one being feed by the other carb with the darker richer sparkplug with the fuel line connected to it i bet.
Posted on Mar 08, 2009
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Posted on Jan 02, 2017
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