
(11) Spark Plug for High Compression Head (See Pics)
by DRR USA
SKU 2-B8EG
Original price
$5.34
-
Original price
$5.34
Original price
$5.34
$5.34
-
$5.34
Current price
$5.34
The older low compression 90cc heads have more of a dome/cone shape in the combustion chamber and the High compression head is more of a flat shape
You want the spark plug to fit to slightly protrude into the chamber not be up inside the threads of the head or out too far past the threaded area.