hi 2 problems, 1st my engine keeps dying after afew minutes, cooling is good, tried lifting fuel tank above engine engine was ok then open to ideas?, 2nd problem is that whilst doing the above the prop hit a sand bank so prop spins freely now please say it has a sheer pin fitted or have i snapped the shaft. serial is 5802,if shaft is snapped were could i get one from or is this going to be a holy grail job,im in the uk,cheers