So uh, I have a little problem

[damnit458]

So as the title states I'm having a little bit of a problem. I went to replace my spark plugs this week as my bike stopped starting and I thought that might be the problem. Anyways, I had no problem getting to and taking out the old spark plugs, but for some reason I am having a problem putting the new ones in.

Now seeing as how tight the area is that I have to work with i cannot very well hand tighten them in, but I can get them started atleast a little bit by hand. However, when I try and tighten them any further it either seems like:
A) it seems like it is going in slanted (and still does not go nearly as deep as I feel it should)
or
B)it seems like it is going in straight but becomes very hard to tighten in a short amount of time, and is clearly not deep enough in

So I'm not really sure what to do? Ive been trying this for a few hours atleast over the last two days and have had absolutely no luck. I really just have no idea why im having such a hard time getting it in when I had such an easy time getting it out.

The reason i ask on here is that I need to get this done ASAP so I drive up to NOVA and let my family use my car for a few days while work is done to one of theirs. Since my bike wont start until this is done, and since I kind of need my bike to start before I give up my only other means of transportation, I'm open to any suggestions as to what the hell I'm doing wrong lol. I realize this should really be a simple process but I really am clueless as to why I'm having a hard time. So any help is appreciated.

[.RJ]

FZR? Paging Kaan....

[damnit458]

Yup fzr 600

I read online all you really have to do to get access to them is loosen the radiator from the frame, which is what I did. I have no problem edging out of the way, and getting my hands to the plugs (although obviously its still cramped). I just have no idea why I cant seem to get them back in.

On second thought it seems like this really should have nothing to do with what kind of bike it is. I just dont know why it seems like it isnt threading back in correctly lol

[.RJ]

You can take a piece of fuel hose, put it on the end of the plug and drop the plug in as well - use the fuel hose to get the plug started threading in.

Kaan has had his spark plugs out a "few" times

[damnit458]

Well I looked at it with a friend and we decided that the plug itself is only going in like halfway before it seems to get stuck. I tried wd40 to loosen any residue that might be halting it from threading all the way down and i got it about another 1/8" down, but its still only like 5/8 - 3/4 of the way down.

Unfortunately along the way I got the leads messed up so now I have to look for the firing order online somewhere since its not in my manual, but im still not sure if that one plug is going down deep enough or not.

[PGK]

might be something on the threads, or the threads are fucked up. if it's only going halfway in, they could be cross-threaded.

[HAULN-SS]

You did try a different plug, right?

[damnit458]

You did try a different plug, right?

I tried 2 and then retried the old one. Theres no doubt about it, something is blocking it fro threading in completely. Some kind of gunk probably seeing as the more WD40 we used the further it went in (slowly), however we still didnt get it completely in.

[Kaan]

ok you'll notice that some dont thread all the way... but they are threaded all the way. it has something to do with the head design. if you need anything let me know... i have all the tools needed to do just about anything with an FZR.