skrip345
Jetboaters Commander
- Messages
- 255
- Reaction score
- 329
- Points
- 182
- Location
- Sedalia, MO
- Boat Make
- Yamaha
- Year
- 2016
- Boat Model
- Limited S
- Boat Length
- 24
Hello gentlemen,
Yesterday I decided to tackle removing the ribbon from the intake manifold on my AR192. The sources I have read and research say it should increase overall performance, and at ZERO dollars I figured it was worth a shot. I did my best to take pictures along the way, so that if anyone else wanted to tackle it they would have a starting point. If you study closely you may notice that I did things a little out of order, but I wanted to remove the bare minimum of parts to make it quicker, easier, and hopefully less intimidating for others. This ultimately resulted in it taking me much longer to do, but hopefully you guys get the idea and can do your mod quickly! Here it is!
Step one was getting into the engine hatch and assessing the situation. First I removed the intake tube that joins the intercooler to the throttle body. Two band clamps with flat head screws. Loosen those up and you should be able to slip the hose out. The ribbon ultimately rests right inside this circle.
Next, I tackled removing the throttle body. Oddly they were 13mm. Four of them secure the throttle body to the manifold. The front two were easy, the back two you may work for a bit. Once I had all four out, I realized that the throttle body would not clear the motor so I could remove it.
I wrestled it a bit and decided I would have to loosen the intake manifold bolts to make it clear. This meant unplugging all four coils, and removing the manifold bolts. There are ten total. Four on top and visible, four more just below, and two come from the bottom up. I circled them here:
and here:
Youll notice in that pic ^^ that the manifold is now disconnected. As soon as I loosened the last manifold bolt the throttle body was able to clear and fall down. I pushed it off to the side. The next task was to remove the four allen head bolts holding the ribbon flange in. At this point, some of you may have luck removing them and leaving the manifold in place. I opted to flip the manifold over and remove them from the top. This also made "digging" the ribbon and rubber out easier. I did have to remove the throttle actuator and white hose from the firewall so the manifold would clear and rotate down without unhooking the fuel injectors or any of the hoses. This sensor had to come off:
Once it came off, I could pull the manifold away slightly from the engine, and rotate it down and around. It takes some wrestling, but you should be able to flip it up like this, exposing the allen head bolts and the ribbon.
I used a flat head screw driver to dig it out. I failed to snap a pic of it, but can do so later if anyone needs. Make sure you remove the rubber part too! Mine came out in one piece with the ribbon. Voila! I will have the boat in on Wednesday and will report back with performance observations!
Total time for me was about an hour and a half. I could do another one in thirty minutes. Let me know if you have any questions!
Yesterday I decided to tackle removing the ribbon from the intake manifold on my AR192. The sources I have read and research say it should increase overall performance, and at ZERO dollars I figured it was worth a shot. I did my best to take pictures along the way, so that if anyone else wanted to tackle it they would have a starting point. If you study closely you may notice that I did things a little out of order, but I wanted to remove the bare minimum of parts to make it quicker, easier, and hopefully less intimidating for others. This ultimately resulted in it taking me much longer to do, but hopefully you guys get the idea and can do your mod quickly! Here it is!
Step one was getting into the engine hatch and assessing the situation. First I removed the intake tube that joins the intercooler to the throttle body. Two band clamps with flat head screws. Loosen those up and you should be able to slip the hose out. The ribbon ultimately rests right inside this circle.
Next, I tackled removing the throttle body. Oddly they were 13mm. Four of them secure the throttle body to the manifold. The front two were easy, the back two you may work for a bit. Once I had all four out, I realized that the throttle body would not clear the motor so I could remove it.
I wrestled it a bit and decided I would have to loosen the intake manifold bolts to make it clear. This meant unplugging all four coils, and removing the manifold bolts. There are ten total. Four on top and visible, four more just below, and two come from the bottom up. I circled them here:
and here:
Youll notice in that pic ^^ that the manifold is now disconnected. As soon as I loosened the last manifold bolt the throttle body was able to clear and fall down. I pushed it off to the side. The next task was to remove the four allen head bolts holding the ribbon flange in. At this point, some of you may have luck removing them and leaving the manifold in place. I opted to flip the manifold over and remove them from the top. This also made "digging" the ribbon and rubber out easier. I did have to remove the throttle actuator and white hose from the firewall so the manifold would clear and rotate down without unhooking the fuel injectors or any of the hoses. This sensor had to come off:
Once it came off, I could pull the manifold away slightly from the engine, and rotate it down and around. It takes some wrestling, but you should be able to flip it up like this, exposing the allen head bolts and the ribbon.
I used a flat head screw driver to dig it out. I failed to snap a pic of it, but can do so later if anyone needs. Make sure you remove the rubber part too! Mine came out in one piece with the ribbon. Voila! I will have the boat in on Wednesday and will report back with performance observations!
Total time for me was about an hour and a half. I could do another one in thirty minutes. Let me know if you have any questions!
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