Hi All. I'm new to the forum. I just picked up a 2014 CTX700 with manual transmission. The bike has 6900 kilometers (4300 miles) on it. On the highway it is fine all the way up to 5th gear but as soon as I go into 6th gear it shutters and vibrates quite a bit like I'm lugging it. I don't shift till I'm going at least 90 kph (56 mph). Am I doing something wrong or do I have a problem? Thanks.