1998-2004 Honda Foreman 450 factory service manual, Page 16Get this manual
GENERAL INFORMATION Unit: mm (in)
-IGNITION SYSTEM
ITEM SPECIFICATIONS
Spark plug
Standard For cold climate (below 5C41 F) For extended high speed riding
DPR7EA(NGK) DPR6EA(NGK) DPR8EA(NGK)
X22EPRU9 (DENSO) X20EPRU9 (DENSO) X24EPRU9 (DENS O)
Spark pl ug gap Ignition coil peak voltage Ign ition pulse generator peak voltage Ignition timing "F" mark Full advance
0.80.9 mm (0.030.04 in) 100 minmium 0.7 minmium 10 BTDC at 1,400 rpm 30 BTDC at 5,900 rpm
Unit: mm (in)