Forum

[podon81]

Hello,
I want to change on my Continental Gt 650 the OEM sparks with NGK BPR7EIX.
I already bought them.
Are they ok for my bike?
I'm waiting for your advices.
Antonio

[Rushour]

Hello, - the spark plugs on the 650 twins are a 10 mm thread - the older models are a 14mm so if you want to fit NGK plugs then fit the correct ones- CR8EIX

[Leon Novello]

Antonio: The spark plugs Rushour recommends usually have a service life of around 60000 kms, they are very expensive, but you are not regularly changing plugs. I had an Iridium plug in my Bullet for nearly 35000kms with no problems.
They will not improve performance or power, they just last a long time. This is why car manufacturers fit them to engines where changing plugs is a major/expensive job.
But if you are tinkerer who likes fixing things till they break, they would not be suitable for you.