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<blockquote data-quote="bbot1967" data-source="post: 493245" data-attributes="member: 27350"><p>Also need to consider the possibility there's a small head gasket leak causing a bubble inside the water jacket. At low speeds it might not be much of a bubble but higher speeds the bubble will build up. Had this happen to me with a '90 Yamaha 30hp. Had I ignored the thermostat it is likely there would have been major damage. Head gasket isn't as complicated as one would think.....er......at least for me : )</p></blockquote><p></p>
[QUOTE="bbot1967, post: 493245, member: 27350"] Also need to consider the possibility there's a small head gasket leak causing a bubble inside the water jacket. At low speeds it might not be much of a bubble but higher speeds the bubble will build up. Had this happen to me with a '90 Yamaha 30hp. Had I ignored the thermostat it is likely there would have been major damage. Head gasket isn't as complicated as one would think.....er......at least for me : ) [/QUOTE]
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