Bah, drove home last nigh, all good. Started bike this morning, fast idle on choke, poped it in 1st, but wouldn't engage. Gave it another try and it went in, though nothing off it. Drove off, second engaged no prob, but 3rd no go. Drove back and found the shifter pedal a tad loose on the splines. Cleaned up, re mounted it, nice an tight and was sure tha this was the prob, but alas, still no 3rd. Looks like something internal like shift fork. Grrrrr. Will dump the oil and and have a good look but fear the worst. I suppose its new rings and hone as the cylinder will have to come off?