I had a diesel mechanic(heavy equipment not marine) look at the engine and with his expertise we pulled the injector (which is actually a simple mechanism) and just cleaned it with some carb spray and made sure that the injector was free of obstructions. like i said it was kinda dirty but not too bad. ive eliminated bad fuel from the equation, but still cant get this thing going. we have only to check the fuel injector pump and thats pretty much it. We are at a complete loss of what might be wrong, uless it is just too tired and too little compression to get it going. Just seems to have enough compression, but what do we know, still havent done a compression test on it yet. (dont have the tool). still confused!! getting closet to yanking it every time i work on it!