Description
What is important in engine tuning is the correct heat range of the spark plug as otherwise the cylinder will overheat or the spark plug will foul.
A cold spark plug will transfer more heat to the cylinder head and the electrode will be prone to fouling, as the cleaning temperature cannot be reached.
A hot spark plug transfers less heat to the cylinder head; this is where you should be careful as the cylinder can overheat and there is a danger of piston seizures.
Many rev counters require a resistor spark plug in order to function correctly; conventional spark plugs can lead to extreme jumps or absurd readings. So if you have a rev counter, you’d better go for the slightly more expensive resistor plugs to be on the safe side.
Short reach = 12.7mm thread length
Long reach = 19.0mm thread length
NGK short reach CR8HSA (WR3CC), resistor type
Spark plug function
Spark plugs play an very important role in the performance of your engine, whether on a scooter, moped or motorcycle. It generates the spark necessary for igniting the air-fuel mixture and provides information about the carburetor settings. If the spark plug is defective, the engine jerks and may start sluggishly or not at all.
Reach and heat value
There are spark plugs with a short thread or reach (marked "H") and spark plugs with a long thread (marked "E"). Spark plugs have a specific heat value, where cold spark plugs with a high number are more suitable for high performance engines, while hot spark plugs with a low number are more suitable for original engines.
For optimum performance and reliability, it's important to choose the right spark plug for your setup and make sure the spark plug cap is working properly.
How to change the spark plug
Spark Plug NGK CR8HSA (2086) | |
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Article no. | L-SAZKNGKCR8HSA |
EAN | 87295120866 |
Weight | 0,03 kg |
Brand | NGK |
Product type | Spark plug |
Thread | M10 short |
Heat index | CR8HSA |