Ducati Monster Forum

Moto Board => Tech => Topic started by: zarn02 on April 18, 2012, 08:45:19 PM

Title: Testastretta spark plug hole diameter?
Post by: zarn02 on April 18, 2012, 08:45:19 PM
So I'm trying to get my 12,000 mile service started. It's a bit overdue at 13,000, but hey... [roll]

My problem is getting the spark plugs out. I have 5/8" plug sockets that fit into the bore, but it seems that's not the size of plug the last owner has in there. So I picked up an 18mm socket, but it won't fit into the plug bore at all.

Does anyone make an 18mm socket with a suitably slim outside diameter? Or am I just going to have to grind down the socket to fit?

(And is there any goofy-ass size the current plugs might be, that's neither 5/8" nor 18mm?)
Title: Re: Testastretta spark plug hole diameter?
Post by: Speeddog on April 18, 2012, 09:57:43 PM
Year and model of Monster would help.
Title: Re: Testastretta spark plug hole diameter?
Post by: zarn02 on April 18, 2012, 09:58:33 PM
'02 998.
Title: Re: Testastretta spark plug hole diameter?
Post by: caperix on April 24, 2012, 03:11:52 PM
I thought all the Testastretta's use 14mm hex spark plugs, at least that is what my 848 uses
Title: Re: Testastretta spark plug hole diameter?
Post by: Speeddog on April 24, 2012, 03:24:18 PM
Yep, AFAIK it'll be 14mm.