It should be at .025.
.044
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.44 of an inch
The correct gap is .035.
25 thousands of an inch
The factory plug or OEM plug recomended by Honda is a NGK CR9EH-9. For the 1998 Honda CBR 600 F3.
The recommended spark plug gap for a 1999 Honda CBR600F4 is .035", according to the manufacturer NGK. The correct plug is CR9EH-9. Or, for the iridium upgrade, it is CR9EHIX-9.
OEM are the best spark plug wires for the Honda cbr. These spark plug wires can be found at the local Honda dealership.
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