1st this is all the tools i had to use to get down in there to remove the the left front plug..

and this is whr you need to go into.. and as you can see, NO ROOM @ ALL.. you will need to go in from the side with your other hand to help yourself out..

This is the bolt that i couldn't remove @ all..Ended up drilling it out and chiseling the bolt out with a hammer and flathead..

I also removed the rest of the AIS tubes B/C it was easy to get to after removeing the Battery box and put caps on the end of it and now i don't backfire as much now, i think i had a leak from over time and now that's not going to happen again..Fixed

here are some crappy pics of the plugs..Sorry, its my phone





Over all my bike needed new plugs BAD, i can feel in the seat of the pants and response of the bike is soooooo much better now and i'll see in time IF the fuel mileage gets better.. @ 40000 miles the bike runs good now and all i need to do now is Sync the bike and i will be running like a top.. Hope this helps.. Give yourself some time to do this Job B/C your going to need it.. Good luck!!

this is the Allen wrench i snapped the tip off on the bolt holding the battery in place and you can see

Dang, Q. Sorry you had such a time with the plugs. I did mine yesterday as well. Took me about 2 hours minus the two trips to Lowes. One for a set of SAE deepwall sockets and one for an angle adapter. Check out my pic on page 5 on how I got to the left front plug.

Ted your plugs look GOOD @ 40k.. They're the right color & you can tell your bike gets some high rpm use The difference between the old & the new is the gap. Check your old plugs and I bet there's a pretty big gap difference from the new. They make the center electrode small to help alleviate quench from raw fuel.. It's a compromise tho, as the gap gets larger over time. Even Denso's 200k mile long life plug is recommended to be changed at 30k

www.densoaftermarket.com/iridium-long-life.php

Check out their racing plug (bottom of page) with Platinum ground/electrode..

www.densoaftermarket.com/sparkplug.php

Good article on how these plugs helped make an extra 750hp on Kens Turbo Mustang

"you can essentially gain another 5,000 volts of ignition performance by just changing your spark plugs"

medic981 wrote: You know, i didn't try from that side and you may be right.. My way worked, but it was a pain.. Thx

No_Max wrote: Bob, i thought it look good too.. The bike does feel a lot better now.. Glad i did it

So what iz the scheduled/recommended mileage for sparkplug change??

15k I think? I'd use Autolite over NGK for the same money

I think the book says 12000 miles. Not for sure, I could be wrong.