Spark plug. Help.

[JiveBunny]

In an attempt to cure the hard starting issue on my bike I though I would pull the spark plug for a clean.

Got it lose with one of those T wrench spark plug removers and screwed out by hand now my problem is getting it back in I have screwed in by hand to what I can but the wrench is just next to useless keeps slipping I don't want to damage anything.


This click is how far I have screwed it in by hand is there any other way I can get it back in? Or do I need to walk two miles for a deep socket?

It's a 16mm hex fitting.

[JiveBunny]

14 Views no replies what mongs.

Fuck off

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https://cultofmac.cultofmaccom.netdna-cdn.com/wp-content/uploads/2011/05/dawson-crying.jpg

[Gavsta88]

I would make the walk into town and grab that socket if I were you matey. If its only finger tight it cold come loose with the vibration etc

Edit- cant think of any other way unless you have pliers to do it bit by bit but that would be a ball ache

[JiveBunny]

[Copycat73]

[Bikeless]

I can see what cimbian was going on about now,you really shouldn't be working on bikes if you can't change a plug FFS.

[Kwakki Si]

If you got it out with that spanner then surely it would go back in with it? Are you sure you haven't cross threaded it? Wind the fucker out and have a looksy.
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[J.M.]

OP insults everyone under the sun... wonders why nobody wants to help him...
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[JiveBunny]

[nowhere.elysium]

[woll]

Something aint right if you can't thread it in almost all the way down without a socket/spanner. I'd say if it's going tight enough for a plug wrench to slip off n its that far out the block you've fooked the thread on the plug or the head.
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[stuartt]

when putting a plug in it's usually best to turn it slowly the wrong way till you feel the thread clicking in to place , as if it starts incorrectly it can turn in to an expensive mistake .

[TomGT]

screw it in finger tight then a quarter of a ratchet turn is a pretty good rule. If it's screwing in then going loose the head may be fooked, in which case you'll be dropping the engine out to get the head re-tapped.

Happened to me recently. No bullshit, plopped the plug in, wound it finger tight, whacked the socket and extenders on, tiny bit of ratchet movement and clunk! The metal bit of the plug had snapped in the thread, mate got the rest of the plug out with a pushrod, and he dropped the engine out to go to a garage as we thought it would be a head off job.

Garage re-tapped it, all is well now, but NGK and halfords have yet to respond to my complaint and request for re-imbursement. Safe to say I now use Denso's, better plugs anyway

[i.p.phrealy]

get a proper spark plug socket too.
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[JiveBunny]

There is no signs of it being cross threaded/metal shavings anywhere it screws in about four turns and requires a socket like the one I belted against the concrete to screw it all the way in is this right?

I am going to try to get a deep socket tomorrow if I can't I'll have to make do with the shitty T handle and go gentle.

Edit: Worse case scenario and I have fucked the head which doesn't look like from what I can tell everything looks how it did before.

How much is a shop likely to charge to fix it?

[Raffles]

[_Iain_]

Ripped from my YBR servicing guide;

Remove the spark plug cap, it just pulls off.

https://i1148.photobucket.com/albums/o574/_Iain_/IMG_0660.jpg

And remove the spark plug - I belive it's some sort of odd size, however the long 17mm socket in the halfords 3/8" set undoes it nicely.

https://i1148.photobucket.com/albums/o574/_Iain_/IMG_0661.jpg


Below is a plug that'd done 3000 miles next to a new un!

https://i1148.photobucket.com/albums/o574/_Iain_/IMG_0663.jpg

Check the plug gap with the feeler gauges - it should be 0.6-0.7mm or 0.024-0.028"

Measure as shown below

https://i1148.photobucket.com/albums/o574/_Iain_/IMG_0656.jpg

If too loose, give it a tap on the wall and measure again.

https://i1148.photobucket.com/albums/o574/_Iain_/IMG_0658.jpg

Too tight, use the pliars to pull the tip up a smidge. BE GENTLE. I've never had to do this unless i've tapped the wall too hard..

Do the plug up finger tight

https://i1148.photobucket.com/albums/o574/_Iain_/IMG_0664.jpg

and give it a little "nip" up with the socket. NO MORE THAN 1/4 TURN!! normally, 1/8th is all it needs! shown below:

https://i1148.photobucket.com/albums/o574/_Iain_/IMG_0665.jpg

https://i1148.photobucket.com/albums/o574/_Iain_/IMG_0666.jpg

Push the spark plug cap back on:

https://i1148.photobucket.com/albums/o574/_Iain_/IMG_0667.jpg



If the plug wont screw all the way in by hand, then either the thread in the cylinder head is fucked, or its the wrong plug you are using.

"it looks the same as it did when it came out"

Unfourtunately doesn't mean shit.

You clearly lack experience, and as such you wouldnt know what its SUPPOSED to look like. As such if the previous owner fucked it up, and you've finished the fuckery of the thread when you pulled it out, you wouldnt be any the wiser as to what it looked like when it came out of the factory, would you? No.

In trying to force the plug in on a semi fucked thread whilst having a temper tantrum you've probbably completely and utterly crossthreaded the head. If its the right plug, the heads okay etc. The plug WILL thread in with your fingers till its tight up against the copper washer that came with the plug. You then give it the 1/4 turn "Nip" as illustrated in the pictures.



Yours scincerely,

The "mong" that couldnt link you to the relevant information because he was out & on BCF via his phone.
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[Bikermice]

[Nick_Giles]

[Islander]

[JiveBunny]

You will be pleased to know it is screwed in now two mile walk over frozen ground and bitterly winds.

I won't smash my tool against the concrete in anger next time lesson learned.

[Fisty]

congratulations.

Have a carrot.

https://i365art.com/wp-content/uploads/2012/10/carrot.jpg
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[Hetzer]

I am failing to understand how the tool was able to get the plug out but not able to tighten it back up. And it's not as if the plug was down a deep hard-to-access hole what couldn't even be seen down. FFS.

This is what happens when kids are given Nintendos for xmas instead of Meccano.
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