3 hrs on 2019 195 Open ID only getting 10 MPH at 5300 RPM

[Rbreaux]

Hi all and I’m happy to find the forum and participate!

Different answer from dealers and Scarab. New 2019 195 Open ID Rotax 300. Purchased from dealer in NC and had shipped to TX. We have 2 hours use in and we can not get past 5300 RPM and 10 MPH. In the first few minutes of operation it limited to this. We were in 2-6 feet of water. I trailered after first 20minutes. Nothing under in intake and no sign of any damage. That afternoon put it at marina and took it out again. Tried the reverse trick and still no change. Read everything I had and spoke to scarab and 3 different dealers. Dealer with most experience stated that I had to have sucked in debri. NC and Scarab thinks it could be a computer limitation for the break-in. The Rotax manual does say it limits to 7000 RPMs or less. Have 2 hours of putting around in the heat and am feeling lost. How difficult is a deeper dig into debris. Any advice is so appreciated on this Independence day weekend. Happy 4th from Rockport, TX


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Dean P
Dean P
Jetboaters Admiral
Thursday at 3:57 PM


#2
Hi and to the forum. Please post pics of your new boat. We all love pictures.

Word is these new engines have a break-in period of 10 hours. Put some hours on her first and then open her up. But you should be able to get on plane. I would double check and make sure nothing is trapped at the impeller and the intake. Get a bright light to really see. Let us know what you see and find out.
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Rbreaux
Member
Thursday at 4:07 PM



#3
70735A49-70FC-47AA-B7D1-88ED7D6A69F5.jpeg
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Luc Lafreniere
Luc Lafreniere
Jet Boat Addict
Thursday at 4:28 PM


#4
Personally, I'm doubtful it's the break in OR debris. Debris manifests itself by shaking/vibrating the boat pretty strongly at higher RPM/speed. Besides, you should be able to spot debris through the intake grate easily. The break in is indeed a thing for 10h I believe, but you should definitely be going faster as @Dean P mentioned. You just can't reach top speed for at least 10h.

No lights/errors on the display at all? I recently had a bad spark plug and it was very similar to what you're describing. But I had a code come up/light (I also could tell it was running a little rough beforehand since I know my boat well).
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Rbreaux
Member
Thursday at 4:35 PM


#5
No lights at all. 99CD2B03-D676-4575-AC91-5272446BDD98.jpeg
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tdonoughue
tdonoughue
Jetboaters Admiral
Friday at 3:35 PM



#6
Disclaimer: I don't have a Scarab...

I guess I could be convinced that the computer was limiting the engine to 5260 until 10 hours was up. But at that RPM you should be up on plane and doing 25 or so I would think, at least. Unless you are going upstream against a 15mph current... Got a pic of the intake grate?
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Rbreaux
Member
Friday at 11:23 PM


#7
Will provide more pics on Monday.. thanks for the plane and 25 info!! Boats seem to be at such demand that service you are getting right now from dealers is so sad!!! I was thinking of pulling the end myself since it would be out if service for 6 weeks at nearest dealer
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Rbreaux
Member
Yesterday at 6:55 PM


#8
Okay...got to 3 hours and no change. We hit the 5300 RPM at 3/4 throttle and then nothing going forward. No shaking and no lights. Nothing in intake((
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tdonoughue
tdonoughue
Jetboaters Admiral
Yesterday at 8:46 PM



#9
Might want to try posting to the Scarab part of the forum. Or to the General part. May get more ideas than here in tips & tricks...
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[Jet Boat Tom]

If you are at WOT, I would check your throttle sensor under the helm. It might be out of adjustment.

 

[csramman]

Just putting this out there. Are you in Dock Mode? I just bought a 2018 165 ID and still learning the different settings. Dock Mode from my understand limits you speed and RPMs.

 

[Dean P]

Just putting this out there. Are you in Dock Mode? I just bought a 2018 165 ID and still learning the different settings. Dock Mode from my understand limits you speed and RPMs.

Good point...

 

[Nexus]

Just putting this out there. Are you in Dock Mode? I just bought a 2018 165 ID and still learning the different settings. Dock Mode from my understand limits you speed and RPMs.

I don't think it will go into dock mode by default. You really have to want to be in docking mode. Plus dock mode will just get you just faster than "no wake speed" so I doubt it would give you even 3K RPM? I can't remember exactly.

During my break-in period my engine started at around 6800, I think, and would definitely go on plane. I agree that there's something else going on besides break in or debris. I do have a 2019 195 300 but I can't imagine that the numbers would be that different.

Oh, and just to add: Remember to vary your speed/throttle during the break in period.

 

[Rbreaux]

This ended up being a hose off the supercharger was loose and blew off. I did not see it and did not expect anything like that to happen on a brand new boat. Thanks for the help!!