My Pan European ST1100 has 154,000 miles.The rear two cylinders are low on compression so i have brought another low mileage engine that has done only 70,000 miles.I have replaced the timing belt for a Gates belt as its cheaper than the Honda one. I have checked the valve clearances and fitted new plugs to the newer engine. I shall replace the coolant pipes + oil & filter as well. Im just waiting for a good opportunity to change them.