I pulled a plug on my 1100 once, to see the condition of it. The plug was fine so it went back in. I dont know if the plugs had been changed before I got it, but it only had 35000Ks on it so probably not. I now have 140000Ks+.Mine were first done at just over the 120,000 km mark and 42,000 km later I put the iridium ones in that I had sitting around for over a year. Thought I'd better put them in and get some use out of them.
I would add two more steps to this:-
Once the old plugs are removed check the plug holes for any dirt that should be cleared before installing the new plugs.
Apply some high temperature never seize to the new plugs before installing them.
P98 of the ST1300 owners manual also gives an interesting method for tightening the plugs.
While you're on the subject of spark plugs, Shiney, I saw a vid a while back where the guy refurbished his coked up plugs with a gas-bottle blow torch to burn off the carbonisation and claimed they were 100% efficient again. Wyvern still has his original iridium plugs which r probably quite xpensive. I don't do that many k's so I won't be replacing them 4 a while but when I do I might buy a blowtorch and give it a try.
A blowtorch has many other uses also, 4 eg, finishing off crackling on a roast pork. WOW:
Will try and find that YouTube vid and include in this post.
| http://youtu.be/dYwSObeCaUY (http://youtu.be/dYwSObeCaUY) |