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Jet Boats
General Jet Boat Discussions
Cavitation on top end
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<blockquote data-quote="kenter" data-source="post: 376259" data-attributes="member: 12804"><p>I have a Weldbilt 17' long 44" bottom with a Yamaha 40/30 4-stroke jet. It seems like the boat has become slower and at full throttle it seems to cavitate or miss a beat. runs great at all other RPM, smooth or rough water. It is 2 years old, I am not easy on it and push it to the limits on oyster shell, rocks, sand, gravel. probably has less than 100 hours. Does this sound like my blades need to be sharpened? </p><p></p><p>If so, does anyone have a good link for sharpening the blades on this impeller? I have heard that I won't get much out of a stainless impeller on the 40/30. Do you agree?</p><p></p><p>I am about to do some maintenance, (oil change, new water pump, ect) and would like to get everything taken care of at once. Am I missing any maintenance items that are specific to a jet pump?</p><p></p><p>Thanks for your input!</p></blockquote><p></p>
[QUOTE="kenter, post: 376259, member: 12804"] I have a Weldbilt 17' long 44" bottom with a Yamaha 40/30 4-stroke jet. It seems like the boat has become slower and at full throttle it seems to cavitate or miss a beat. runs great at all other RPM, smooth or rough water. It is 2 years old, I am not easy on it and push it to the limits on oyster shell, rocks, sand, gravel. probably has less than 100 hours. Does this sound like my blades need to be sharpened? If so, does anyone have a good link for sharpening the blades on this impeller? I have heard that I won't get much out of a stainless impeller on the 40/30. Do you agree? I am about to do some maintenance, (oil change, new water pump, ect) and would like to get everything taken care of at once. Am I missing any maintenance items that are specific to a jet pump? Thanks for your input! [/QUOTE]
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Cavitation on top end
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