2023 195S - Low top speed

[anmut]

It’s about halfway up the bent part, so definitely over the top hash. Its hard to see, but just past my thumb.View attachment 234630

You found your problem - pump that oil out, or take it back to the dealership that overfilled it. Make sure you get a new air filter too.

 

[anmut]

Is there anyway that ride steady device could be interfering with maximum RPM? I thought that that device had the ability to control the engine speed all on its own so if there was a max speed or max RPM limit set then that could be keeping the engine from revving all the way, and or a max speed setting

Only if the system is on and you've selected RPM or Speed as control. If it's off, it's all throttle.

 

[JetBoatMatt]

Btw, you have RideSteady already installed. You could turn that on to RPM mode and crank up the RPMs all the way, then see how high the actual RPMs get. Gives you another data point against the throttle cabl

Max I could get was 6980 and 36 mph with the air filter reinstalled.

 

[Neutron]

Max I could get was 6980 and 36 mph with the air filter reinstalled.

Make sure the elbow hose that goes from the intercooler to the throttle body isn't coming off or partially off. Well known to have the hose clamp improperly tightened and coming off causing a boost loss. You should be turning 7500 to 7700. Even slightly off could cause this

 

[Neutron]

As @FSH 210 Sport said get oil level in the correct range

 

[JetBoatMatt]

As @FSH 210 Sport said get oil level in the correct range

I ordered the oil pump to drain it down. I'll head out Friday to get it into range and see how it runs.

 

[Neutron]

I ordered the oil pump to drain it down. I'll head out Friday to get it into range and see how it runs.

Double check the boot to the throttle body

 

[JetBoatMatt]

I'll go ahead and tighten up all of the hoses. I also have new spark plugs coming, I'll change those out if the oil/hoses don't work.

 

[FSH 210 Sport]

I'll go ahead and tighten up all of the hoses. I also have new spark plugs coming, I'll change those out if the oil/hoses don't work.

Change the spark plugs as soon as you get them.

 

[anmut]

Change the spark plugs as soon as you get them.

100% agree with this.

 

[Neutron]

I'll go ahead and tighten up all of the hoses. I also have new spark plugs coming, I'll change those out if the oil/hoses don't work.

Dont just tighten the clamps, look at the elbow to the throttle body closely to verify it is seated properly, they are known to push off slightly and at first glance looks fine. Check to see it is on completely.

 

[Jerlane]

You said you just got it... did you buy it new or used?

 

[JetBoatMatt]

Change the spark plugs as soon as you get them.

Replaced sparks, got the oil level right between the hash marks, and adjusted the air hoses. I got it up to 39 at 7260 rpm. Still running slow, but a little faster than before.

 

[JetBoatMatt]

You said you just got it... did you buy it new or used?

Used. 2023 with 32 hours from a Yamaha dealer.

 

[JetBoatMatt]

Dont just tighten the clamps, look at the elbow to the throttle body closely to verify it is seated properly, they are known to push off slightly and at first glance looks fine. Check to see it is on completely.

I adjusted them and tightened along with oil and sparks. Got 39 at 7260 rpm.

 

[Neutron]

How much weight is on board, should be turning more than that

 

[FSH 210 Sport]

I adjusted them and tightened along with oil and sparks. Got 39 at 7260 rpm.

What was the temperature?

You’re still low on rpm’s. But things are improving which is good.

How about the water cooling lines to and from the intercooler? All kink free and good flow at the exit on the side of the boat?

 

[JetBoatMatt]

How much weight is on board, should be turning more than that

Just me and a mostly full tank of gas. No faster with a nearly empty tank.

 

[JetBoatMatt]

What was the temperature?

You’re still low on rpm’s. But things are improving which is good.

How about the water cooling lines to and from the intercooler? All kink free and good flow at the exit on the side of the boat?

About 78 air and water. Good flow coming from the side. Nothing stands out as kinked or anything.

 

[Cobra Jet Steering LLC]

to remove excess oil get a plastic turkey baster syringe and some small plastic tubing place the tube on the end of the syringe and push the tube down the dip stick tube to extract some oil from the engine take out a syringe full and see where it reads on the stick also look inside the engine compartment for any bad exhaust hose clamps that could be allowing exhaust gas to get pulled, back into the engine reducing it's oxygen level I had an issue like that once and was very surprised how it cut down the top speed