I happened to flip through the Yamaha RX135 Owners Manual today. I saw they have suggested NGK BPR8HS. However, the service centers have and recommend using NGK BPR7HS. I wonder why there should be a change?
I somehow found a used plug NGK BPR8HS with me and checked for the spark. It is good. However, thought would let everyone know of the fact.
Can we discuss this?
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