got a 1994 super tenere 750. has been missing terribly/losing power going up hill. changed plugs 5 months ago, went fine, but slowly gets back to square one. backfires when coming down hill/change down a gear., and struggles to get up hills - and misses badly and basically sounds more like chitty bang bang than a bike!.just changed plugs again and checked air filters, and it's going well again. old(ish) plugs were black and sooty. changing the plugs and getting to air filters has been the pinnacle of my mechanical career so far, and any suggetsions on what the problem could be would be greatly appreciated!

jaff

It sounds like a carbs problem , either gunked up , set up wrong or sucking air in somewhere .