You need to tell our fine mechanics EXACTLY how it's running badly when it dies. Details are our only way to know what you have. However, there is one other way that can help. If you can get a video of this happening on YouTube, then give us the link to that video. Then we won't have any interpretation problems in addition to distance problems. When I refer to distance, many times on this side of the pond, someone near by might be able to stop by and put their eyes on a problem. But you being on an island that isn't likely to happen anyway. So your best shot will be a YouTube video. And good luck there.