Didn't quite make it
Off loaded the boat from the trailer, motored over to the pontoon without a hint of trouble, and tied up to wait for friends, sat for 15 minutes or so, friends arrived got kitted up and OK lets getting going - Not. Engine would turn over, cough and splutter and run on about two and a half cylinders and then cut out. Despite many attempts, silent prayers to the God of RIBs, equally silent cursing, it was not to be. Not yet had a chance to investigate, but not too happy!! Seems like we missed a good 'un.