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  1. Replies
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    https://impros.com/store/index.php/tech-info/tech-...

    https://impros.com/store/index.php/tech-info/tech-info/impros-skat-trak-impeller-recommendation-chart-for-1987-2013-kawasaki-watercraft.html
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    Yea I thought about it years ago. Was thinking of...

    Yea I thought about it years ago. Was thinking of a vertical plate/bracket between the thru hull and charger with the tensioner and bearing holder incorporated into it. Seemed like would need a...
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    The guy who built the 15f I have originally ran...

    The guy who built the 15f I have originally ran the turbo setup with stock pistons + 1mm spacer + like 7 lbs boost before he switched to aftermarket pistons.

    The shorter rods on the 12f crank...
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    ...

    ...
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    On 12f rods makes more sense. Originally you said...

    On 12f rods makes more sense. Originally you said 15f rods and pistons in a 12f motor. They would be way down in the hole.

    If you need a 250x rod and piston I have some. Just pay shipping
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    "I bet a set of high comp forged 250-310 pistons...

    "I bet a set of high comp forged 250-310 pistons on 15F rods would drop right into a 12F and you would have a pump gas boost ready 12F for about as cost effective as you could get."


    15f stroke...
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    That is setting for Buckshot 50. Your...

    That is setting for Buckshot 50. Your carburetors will need to be tuned to match your conditions. 150 + 115 should be close but you may want to start with bigger jets (160/155 + 120) to be safe. You...
  8. That cylinder block will need to be re-plated or...

    That cylinder block will need to be re-plated or replaced. As for the the re-plating they usually have to do all 4 holes wont do just 1. Not sure if you have anyone over there doing nikasil to call...
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    Pretty sure the guy in the first 2 posts was...

    Pretty sure the guy in the first 2 posts was running Buckshot 50s

    https://www.tapatalk.com/groups/ultra150/carb-jetting-specs-t3355.html
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    Did you by any chance hook up a garden hose when...

    Did you by any chance hook up a garden hose when you attempted to start it? The procedure for the jetskis is to have the motor running before the water is turned on or there is a chance the hose can...
  11. Thread: 1200 to a 1500

    by TMiller
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    1,025

    After you do all this work to the 1200 would love...

    After you do all this work to the 1200 would love to see a video up against a stock 15f.
  12. Thread: 1200 to a 1500

    by TMiller
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    I see. Could swap the guts out of that one into...

    I see. Could swap the guts out of that one into this one.
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    Just because you saw the rentals riding all day...

    Just because you saw the rentals riding all day doesnt mean they werent affected. The only thing I can offer here is depending on time of year and/or the direction of the wind it can stack alot of...
  14. Thread: 1200 to a 1500

    by TMiller
    Replies
    41
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    1,025

    If it were me i would probably use this ski for a...

    If it were me i would probably use this ski for a donor to do the mods that you spoke of in your other thread. You already need pistons and a ecu. I would be hesitant to chop up a new ski if I had...
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    Sean, the attachment in your last post is not...

    Sean, the attachment in your last post is not working.
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    Even if there were any parts in the motor that...

    Even if there were any parts in the motor that were reusable it would be hard to justify the cost especially since you would probably need a new supercharger. Then add all the labor on top it adds up...
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    Oh I see. You think the hose filled the motor...

    Oh I see. You think the hose filled the motor with water and bent the #3 rod when it hydrolocked.
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    Ok. I was wondering if you had water in the oil...

    Ok. I was wondering if you had water in the oil before the rebuild. Did you re-use any of the old parts from the motor that came apart? Maybe the cylinder or head surface was warped. Whatever is...
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    Pull the pump it takes 20-30 min round trip. Then...

    Pull the pump it takes 20-30 min round trip. Then you can inspect wear ring/prop clearance.
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    If they are stiffer why would he be able to move...

    If they are stiffer why would he be able to move the engine with his hand?

    A few years back they switched because the softer ones were sagging. If he said they are the race ones then I am sure...
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    what was wrong with the engine that this one...

    what was wrong with the engine that this one replaced?
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    how many hours on this machine?

    how many hours on this machine?
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    I just remembered crower will make custom rods...

    I just remembered crower will make custom rods for just under 1k about the same price as carillo. Could get them made shorter for the ultra pistons. Or get an ape stroker crank and run an ultra...
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    When the 15f first came out 15 years ago people...

    When the 15f first came out 15 years ago people were investing alot of time and money into them as full race effort, nowadays you wont find many examples. More recently there were one or more kits...
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    Motor cranks but wont turn over? Do a compression...

    Motor cranks but wont turn over? Do a compression test and check crank float (end play)
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