So I can't find anyone putting this info on the forum... Darn me and my ability to use search function lol I hope this helps those who chickened out because of what people said about intalling spark plugs on GE8.
I know u have to "feel it" a lot of things but it's really easy if u have a basic knowlodge about changing spark plugs.
Disclaimer: U r ur own doing it! I'm just telling u how it can be done
Anyway, u will need:
1.4 Denso IK22 spark plugs (I paid $32 shipped)
2.10mm socket with 4" extension
3.Traditional 5/8" spark plug socket with 8" extension
4.Strong back (I'm serious...)
Here's how it looks like under the hood if u never opened it
We are going to use this "little space" left side of the engine and top of the oil cap to access the spark plugs. (Trust me, it's more than enough room to access
Room behind the engine (see? enough rooms!
This is how it looks like from the back
More detail pic of it
1.First, disconnect the battery with 10mm socket
2.So here comes the blind work. Use the same 10mm socket with 4" extension to remove the bolt that's holding the gray color spark plug coil. This is where u have to take ur time looking for the first bolt. They are away from u which means far right side of the gray spark plug coil. There's only 1 bolt holding each coil and they r not really tight so it can be removed very easily.
In this pic, the gray square thing is the coil and the blue thing is the connector that we have to remove later. The bolt can't be seen from the pic because it's on the otherside of it.
Here's a pic of the bolt (it's color coded red)
3.After removing the bolt, disconnet the blue thinggy that u saw on last pic. By doing it, u have to press from the top of the blue thing and u will hear a click. And then slide it away from the coil to remove it. The blue connector doesn't go anywhere since it's mounted so don't worry about it for now.
4.Remove the gray spark plug coil. U kinda have to spin left and right as u pull it to make it easy to come out.
Here's how the coil looks like.
5.Using the traditional 5/8" spark plug socket, remove the old plug. That 8" extension is perfect for the space we have.
Going in again!!!
Here's the NGK stock spark plug that's hiding 2 HP :P.
6.Make sure u put some of those sprak plug grease thinggy on top of the spark plug. (sorry I don't have a pic of them) Put the new IK22 into the spark plug hole. Ur spark plug socket should have a rubber ring inside to hold a plug. Use the torque recommended by Honda. (I don't really use a torque rench on stuff like this since I know how tight it should be by hand: not recomended lol)
7.Put the gray coil back. Again spin left and right while u push them into the hole. (Sound dirty
8.Connect the blue connecter to the coil. Make sure u hear a "click". And check if it is secure.
9.Put the bolt back in. Again use the torque recommended by Honda.
10.Repeat step 2~9 3 times.
11.Check everything is secure
12.Connect the battery back and tight using torque recommended by Honda.
13.Check nuts and bolts again after a while (I did about a month after)
Thoughts: It is just time consuming and gets pretty frustrated after a while. Also, if u have a bad back like me, it WILL hurt like hell after 10 mins since u have to "hug" the engine for 30+ mins... But take ur time and try to do the hardiest one (far right one) first and u will realize that it's not that difficult to change. Please let me know if u have any question.