What spark plugs are you guys using on the 650 engines, especially tuned engines? I was once advised to fit the expensive iridium tipped ones which I did quite successfully but the manufacture’s web site does not list any suitable for the 126.
Tuning What Spark Plugs ? 🤔
- Thread starter Toshi 975
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Tuning What Spark Plugs ? 🤔
Hi Dave, AFIK the 126/650 engine will run well even in tuned form (up to a point) with the NGK BPR7HS, But, I have evidence of the same plug in my engine running too hot so I have just changed them for a new set of NGK BPR8HS as they will shed the heat better and as a 'colder - harder' plug will withstand the engine temperatures overall better.
Ian.
Ian.
