Spark plug change on 400/500HO?
#1
Wondering how you change the spark plug without stripping the ATV down? Any ideas?
I have been told these Fuji engines run smoother on a NGK Iridium plug.
I have been told these Fuji engines run smoother on a NGK Iridium plug.
#2
Just use the plug remover in the tool kit and a 17 mm wrench(if you have the tool kit) Or just use a plug socket,1/2" extension and a small ratchet. I just used a socket and a flex ratchet because of the angled head. You can use a pencil magnet to get the plug out or even a piece of vinyl tubing over the plug to pull it out.I'd stay with the BKR5 or 6 plug.I've tried Iridiums in different older machines and fouled em out. Tried em even in my old Honda with little success. Fouled these high dollar plugs out too. They work best on the newer electronic ignitions. Just my
on this one. Others may differ on this. OPT
on this one. Others may differ on this. OPT
#3
Just use the plug remover in the tool kit and a 19 mm wrench(if you have the kit) Or just use a plug socket,1/2" extension and a small ratchet. I just used a socket and a flex ratchet because of the angled head. You can use a pencil magnet to get the plug out or even a piece of vinyl tubing over the plug to pull it out.I'd stay with the BKR5 or 6 plug.I've tried Iridiums in different older machines and fouled em out. Tried em even in my old Honda with little success. Fouled these high dollar plugs out. They work best on the newer electronic ignitions.Just my
on this one. OPT
on this one. OPTThanls again OPT!!
#5
In my service manual, it says to use anti seize on the plug threads? Is copper good, that is all I have.
#7
I never did! The plug cap if in good shape pretty well seals up the area,can't remember any time I ever broke a plug or had a hard time getting one out.But that's just me! You can use a little anti seize if you like. Copper or silver,either one. OPT
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#8
Any tips on getting the plug cap off? pliers? special puller?
#9
This is where you need to be careful! I still have the "L" shaped plug cap remover that I just used the palm of my hand to pop the cap up. Just reach in and work it a little side to side and up,don't break the cap or it's $25 or more to replace. I've seen a lot of em taped up over the years! OPT
#10
This is where you need to be careful! I still have the "L" shaped plug cap remover that I just used the palm of my hand to pop the cap up. Just reach in and work it a little side to side and up,don't break the cap or it's $25 or more to replace. I've seen a lot of em taped up over the years! OPT


