I have a 35hp Global engine, I have ran it briefly with the prop it came with it along with a random assortment of bolts and washers holding it on. It shook badly, but it had no hope of being in balance with 3 bolts of correct length and 3 bolts each of different lengths with different numbers of washers. However, it did not come with an external counterweight to go on the prop side, as I've seen other 1/2 VWs have. I know some Globals were balanced and some were not. Is there an easy way to tell if the crankshaft is balanced? Is there a way to balance it along with the prop to correct any out of balance conditions, or do I need to have the engine balanced initially? I know I can ship it to Scott Cassler at Hummel Engines in Arizona for balancing, but shipping will be fairly expensive to do so from Louisville, KY. Is there anyone East of the Mississippi who can balance a half VW?