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Message: <blockquote data-quote="zlconstruction" data-source="post: 9132" data-attributes="member: 919"><p>Well with lots of thinking at night i bought the bobcats and all that went with them. I took a real close look at the head and i did not see any cracks. And the bores look fine and there is no hole in the side of the motor. Well this weekend i can take a closer look at all these things and see what i got. The other 743 runs well the only thing i can notice is that some times it bucks like a wild horse when i try to turn. O and is a little grey smoke is that normal when you start the engine? I cant remember does 10w40 go in the motor?</p></blockquote><p></p>