Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Spark Plug: Specifications

California models (4A or 4A-C engines)

California Models	Recommended Plugs	ND	W16EXR-U11
		NGK	BPR5EA-L11
			BPR5EY11
	Gap		0.043 Inch (in)
Federal Models	Recommended Plugs	ND	W16EXR-U11
			W14EXR-U11
		NGK	BPR5EA-L11
			BPR5EY11
			BPR5EA11
			BPR4EY11
	Gap		0.043 Inch (in)
Canada Models	Recommended Plugs	ND	W16EXR-U
			W16EPR
			W14EXR-U
		NGK	BPR5EA-L
			BPR5ES
			BPR5EA
			BPR4EY
			BPR5EY
	Gap		0.031 Inch (in)
Spark Plug Torque			13 Foot Pound-Force (ft.lb)