Correct Spark Plug

Model	Plugs	Miscellaneous
948	Lodge CLN-H, HLN	Gap: 0.025", 0.64mm Lodge HLN Equivalent to Champion N4C 14mm x 3/4" reach. Lodge CLN-H Equivalent to Champion N5C 14mm x 3/4" reach See also Vintage Motor Spares
1200 12/50		Gap: 0.025", 0.64mm
13/60		Gap: N/A(??)

Spark plug reference

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