I just picked up a 1997 gtx. it came with two lanyards. They both are in very bad shape. One doesent work at all. The other works, but no beeps. The ski runs ok but only produces about 5000 rpms and approx 30mph. If you push throtle all the way it wants to sputter, when you back off the throtle it seems to run ok. I read online that some lanyards are limited could i be using one of those. and if i buy a new lanyard, does it need to be programed.