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Yamaha Outboard Spark Plugs (4-Stroke Models)

Spark Plugs (4-Stroke Models)

Buy fresh spark plugs for your 4-stroke Yamaha outboard engine as a smart choice to help keep your engine running smoothly. Old spark plugs can lead to a poorly running motor.
4-Stroke Model NGK Spark Plug Gap (mm) Gap (in)
F2.5, F4 B6HS 0.6 0.024
F4A, F6A CR6HSB 0.7 0.028
F6 BR6HS-10 1.0 0.04
F8, T8, New F8 BR6HS-10 1.0 0.04
New F8 "L" BR6HS-11 TBD TBD
F9.9/FT9.9/T9.9 ( 85~03) cold climates CR4HSA 0.6 0.024
F9.9/FT9.9/T9.9 ( 85~04) CR6HS 0.6 0.024
F9.9, T9.9, FT9.9 (05~) DPR6EA-9 0.8 0.032
F9.9F, T9.9G BR6HS-10 1.0 0.04
F15 DPR6EA-9 0.8 0.032
F20, F15C DPR6EB-9 0.9 0.036
F25 (98~05) DPR6EA-9 1.0 0.039
T25 (06~), F25 (06~), F30 (01~05) DPR6EA-9 0.9 0.036
F25A, T25A DPR6EB-9 0.9 0.036
F40 DPR6EA-9 0.9 0.036
F40A DPR6EB-9 0.9 0.036
F50/T50 (95~04), F60/T60 (~04) DPR6EA-9 0.9 0.036
F50/T50 (05~), F60/T60 (05~) DPR6EB-9 0.9 0.036
F70A LKR7E 0.9 0.035
F75, F80, F90, F100 LFR5A-11 1.1 0.044
F115, LF115 LFR6A-11 1.1 0.044
New F115 LKR6E 0.9 0.035
VF115 LKR6E TBD TBD
F150, LF150 LFR5A-11 1.0 0.039
New F150 "L" LFR5A-11 TBD TBD
New F150 "X" LFR5A-12 TBD TBD
New LF150 LFR5A-13 TBD TBD
VF150 LFR6A-11 1.1 0.043
New VF150"X" LFR6A-11 TBD TBD
F175 LFR6A-11 1.1 0.043
VF175 TBD TBD TBD
F200, LF200, F225, LF225 LFR5A-11 1.0 0.04
F225TLR (Sport) LFR6A-11 1.1 0.044
VF200, VF225, VF250 LFR6A-11 1.1 0.043
New VF250"X" LFR6A-12 TBD TBD
F250, LF250, F250B, LF250B LFR6A-11 1.1 0.044
4.2L- F225, LF225, F250, LF250, F300, LF300 LFR6A-11 1.1 0.043
V8- F300, LF300, F350, LF350 LFR6A-11 1.1 0.044

Need other parts?

Do you need parts not listed in these application guides? See our Yamaha engine diagrams. Please see our model number reference guide if you aren't sure about the year or model of your outboard engine.