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General Jet Boat Discussions
Yamaha 70hp Conversion
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<blockquote data-quote="JL8Jeff" data-source="post: 489972" data-attributes="member: 12995"><p>You could go with a jack plate or CMC riser plates. The jack plate will set your motor back about 4-8" but allow you to adjust the height easier. When I mounted the jet on my boat, I started with it on the transom and kept going up a hole and trying it out until the spray back was too much and went back down a hole. I ended up almost 2-1/2" above the transom and mine is a short shaft. I also had to add transom wedges to get rid of porpoising.</p><p></p><p>https://www.amazon.com/dp/B003S8XX5A/ref=as_sl_pc_tf_til?tag=tinb0ab-20&linkCode=w00&linkId=&creativeASIN=B003S8XX5A</p></blockquote><p></p>
[QUOTE="JL8Jeff, post: 489972, member: 12995"] You could go with a jack plate or CMC riser plates. The jack plate will set your motor back about 4-8" but allow you to adjust the height easier. When I mounted the jet on my boat, I started with it on the transom and kept going up a hole and trying it out until the spray back was too much and went back down a hole. I ended up almost 2-1/2" above the transom and mine is a short shaft. I also had to add transom wedges to get rid of porpoising. https://www.amazon.com/dp/B003S8XX5A/ref=as_sl_pc_tf_til?tag=tinb0ab-20&linkCode=w00&linkId=&creativeASIN=B003S8XX5A [/QUOTE]
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Yamaha 70hp Conversion
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