3 hours trying to get the second one on...made no sense why it wouldn't drop on. Resorted to silicon spray all over the mount and jumping up and down on the engine...proper mechanics ☺ well relieved when it finally popped in.
gearbox was fun on my own...but done it three times now so getting the knack.
been running it at a few different revs now, v nice indeed, bit tappety so will reduce then down a thou or two on inlet and exhaust