Removing the barrel of a recently acquired CR125M , supposedly restored and not cheap,and finding one of the bolts that hold the inlet manifold was turning freely. Hmmm, no big deal I thought. Then I looked a bit closer and there was an araldite blob, painted black, that came away with the manifold. A fair chunk of barrel with half the thread in the bog. Anyway I found that the "totally" rebuilt engine had one pulled head stud and one of the locating dowels in the cases missing. Just hoping the rest is in better nick.