Spark plug re-thread in-situ?

[ggreen1959]

Just had the front plug blow out of my 650. My thread was stripped however so needs re-threading. The back plug was also loose, but tightened up OK. I have not looked at the plugs since I had the bike 3K miles ago.

Does anyone know where I can get it re-threaded in-situ?

[Rusty Nuts]

I can't imagine that's possible. The stripped holes need re drilling then tapping for an insert. Swarf in cylinders is not what you want.

[Fat Rat]

Even if you have a Helicoil fitted, the Head will still need drilling.

[ggreen1959]

Quote removed

I heard Snap-on did a new tool, but can't find anything about it! 

[tallpaul]

Snap on? Probably cheaper to take the head off and helicoil it... unless you know a garage that has one already.

[BigAldo]

Maybe this youtube video will help?

[Fat Rat]

I don't believe that the 'special' grease would catch all of the swarf. Do it properly and take the Head off, it's not a massive job 

[kwackboy]

It can be done but it's finding a brave bloke to do it . It's done with plenty of grease and a tiny tube to suck out the metal particles.
My self and a work colleague have have done it a few times successfully but at owners risk . Most don't want to pay to have the cylinder head removed so the risky option is offered at lower cost .

[ggreen1959]

Thanks for your replies.
I know it is a head off job really, but someone may have come up with something new!! Much grease and patience, fit a threaded insert instead of a coil followed bay a damn good inspection and pick-out of any bits is the cheap way - if you could get in!!
As you say Fat Rat, it's not a big job to remove the head, just a pain.