NGK part number for M8 engines is
CR9E
Iridium # CR9EIX
I dunno if I can justify paying the extra for Iridium
This is an alternative to the HD plugs
Seems these odd ball plugs fit a lot of Japanese made bikes HMMMMMMMM
NGK part number for M8 engines is
CR9E
Iridium # CR9EIX
I dunno if I can justify paying the extra for Iridium
This is an alternative to the HD plugs
Seems these odd ball plugs fit a lot of Japanese made bikes HMMMMMMMM
Nuff Said," Were Burnin Daylight, Lets Ride"(Sober 37 years)
Current ride : 2021 FREEWHEELER M8, oldest ride 1960 FL
I have always liked NGK plugs, but I'm so happy with the way this new 107 runs, I may stay with the stock ones if they look good after 2 years.
2017 Harley Davidson Freewheeler (107 cu.in. vivid black).
Have you pulled your plugs yet & if so, how did they look?
2017 Harley Davidson Freewheeler (107 cu.in. vivid black).
Its not like the old days plugs last 30 thousand plus miles...When gas was leaded maybe 12 thousand miles...I checked the plugs on my 2011 Tri..[103] at 40 thousand they were like new, And the gaps were within specs... The M8 Should last at least that long what with two plugs per cylinder...
Back in my drag racing days i would change them out after 4 or 5 1/4 mile runs, But they were moderfided by me. [Cut back] Should have patented the idea...
Sometimes a Cigar is Just a Cigar.....
2019 Tri-Glide.......
Regarding the M8, Has anyone pulled the plugs yet & if so, how did they look?
2017 Harley Davidson Freewheeler (107 cu.in. vivid black).
Nuff Said," Were Burnin Daylight, Lets Ride"(Sober 37 years)
Current ride : 2021 FREEWHEELER M8, oldest ride 1960 FL
This is from the 2017 service manual
Table 2-18. Spark Plug-All Models M8 TORQUE GAP PLUG TYPE89–133 in-lbs
(10–15 N·m)0.031 –0.035 in
(0.8–0.9 mm)HD-6R10
2017 Harley Davidson Freewheeler (107 cu.in. vivid black).
Nuff Said," Were Burnin Daylight, Lets Ride"(Sober 37 years)
Current ride : 2021 FREEWHEELER M8, oldest ride 1960 FL