chrisu wrote:glad you're sorted.
I'll still ask Simon for a price for inserts etc so others have a point of reference.

Yeah Chris that would be a good idea.
I had my bike into Aberdeen Head shop this morning.
The owner- an older guy was extremely knowledgeable.
I had the bike on the trailer, removed the tank and he got to work.
He picked up that my #2 plug that had been timeserted before - had been done by an "amateur" as the repair had not been done square to the head.
He used a bigsert which has the same unfinished thread at the bottom as the timeserts, but these have an additional "tang" that once fitted cuts into the ally making 100% positive that it wont back off.
This is because the plug now seats on the top hat part of the bigsert & not the head.
The #2 piston was set at TDC + bit, just so the piston was on the start of the down stroke, but with the valves still closed.
Once he retaped the hole using a molybdenum grease to catch any swarf.
He shone a torch with a little gizmo that showed the inside of the cylinder - not a spec of swarf could be seen anywhere
To be 100% sure, once the repair was complete,the bike was fired up with #2 plug removed.(just to blow anything that was hiding inside.)
All in the work took around 1 hour & a total cost of £70
Well worth it Iwould say.
Got the bike home & had it out for a little around the industrial estate as its still no MOT or tax.
Going very well.
Happy bunny again
Stu