NGK Spark Plug BP7ES for model: Yamaha XS 250 1U5 1977-1978
Diameter of the thread 14mm
Length of the thread 19mm
Thread pitch 1,25mm
Wrench size 21mm
Electrode gap 0,9mm
Flathead
One ground electrode
SAE-Port can be unscrewed
Without interference suppression
NGK is the world's leading producer of spark plugs.
As an OEM for leading car and motorcycle producers, in winning vehicles of Formula 1, in motorcycle racing and, of course in everyday vehicles in daily traffic.
NGK is setting standards to meet the highest quality demands.
NGK spark plugs are not only reliable but progressive as well.
When installing the spark plugs, pay attention to the required torque!
Torques depend on the material of the cylinder head and the diameter of the thread.
Torques of the spark plugs with a flat head and seal with the diameter of the thread
- 18 mm : 35 - 40 Nm
- 14 mm : 25 - 30 Nm
- 12 mm : 15 - 20 Nm
- 10 mm : 10 - 12 Nm
Scope of delivery:
1 x Spark plug