Getting ready to MOT the mini. It's been off the road for over two years, simply due to lack of requirement. With all the jobs done, I thought it wasn't running great (was tuned on a rolling road the last year it was driven) and noticed it didn't appear to be firing in the third chamber. Remove the plug to find it was back and oily. So for the sake of £8, I chucked some new plugs in at and it does appear to be firing on all 4, but filming the exhaust, I can't decide if it'a too smokey...the oily plug being a sign.
It's either MOT time or further investigation.
Any input it greatly appreciated.
This is the clip of it running:
https://www.youtube....?v=fbqXUFVNHFI