Outer Limits 4x4 Board

any tips to get it out. I'm trying crc and leaving it soak, warming engine, trying when cold, last thing i want is to snap it of or pull the thread.
That means head off. A tip to all make sure you or your mechanic antisieze your plugs

Stripped thread doesn't mean head off all the time. My brothers maverick had number 4 plug only thread half way before it stopped dead the plug that came out was the same so I got the appropriate size (read pitch and diameter) tap and a whole heap of bearing grease, smothered (and I mean smothered) the tap in grease and very slowly re-claimed the offending section of thread, the grease stopped 99.5% of the alloy swarf, we refitted the plug and he has had no dramas at all. Not much help now I know but might help later .

Lube it up, wait, then have a crack.

If no good, repeat process. You'll find that it'll be easier if its warm, but just be patient with it and don't force it.

bring the motor up to operting temp. hold the revs about 3-4000 rpm and spray a can of carby cleaner in the in take it will clean the top end of the motor out and remove all the carbon of the other side of the spark plug. or u can use dieasl to but it will make for a good smoke machine.