SX190 not running full rpms

[NC2092]

I have a 2012 so 190with 225 hours. Been running great the past few weeks. Today it was running fine for a hour and then I put in like 5 feet of water and just floated. Then I was going back to pull a tuber and with the throttle fully down I was only getting 6000-6500 rpms but I can normally get 8k plus. I was only getting to 30 mph when I can normally go 40 plus.

I was messing with the clean out port before we went tubing again and I made sure I put it fully back in.

Any ideas what could be wrong?

 

[Dwrat]

Spark plugs

 

[jEt_jAk]

Check the throttle cable to see if it slipped.

 

[NC2092]

Spark plugs

I just had brand new spark plugs put in about 3 weeks ago.

 

[NC2092]

The engine definitely sounds different when running now. Lots of gargling when sitting in neutral or slow speed and when running at medium to full throttle it doesn’t sound normal.

 

[4x15mph]

Did you check your air filter to see if it is clean? Overfilling the oil during an oil change can result in a oily air filter

 

[NC2092]

Air filter seems fine

 

[4x15mph]

Also check to see if something is in the jet pump... could be anything small

 

[NC2092]

Ok I will look again. I tried loooing to see if anything was in there. Didn’t seem like it

 

[2kwik4u]

Ok I will look again. I tried loooing to see if anything was in there. Didn’t seem like it

I've had a remarkably small piece of driftwood caught in mine causing problems. I would say roughly 2-3 times the size of a toothpick in thickness. It was super small.

Caught a piece of wood on the river, used the cleanout port to get it out, thought all was well. I was getting full RPM, but not full thrust, so slightly different case. I checked cleanout again, and pulled this tiny little piece out. Boat ran better, but still not 100%. Then like someone walked up and kicked the back of my seat, the pump must have spit something else out because I took off like a rocket at ~25mph or so.

 

[NC2092]

yeah I looked back there an while and can't find anything. Its just not going up to full rpms with the throttle down.

 

[Dwrat]

I bet you have a bad "new" spark plug.
I would switch them out before taking it to the shop.

 

[NC2092]

Ok I will do that. Thank you.

 

[BlowinMoney2015sx240]

I have a similar issue with My 2015 SX240. Did You ever find the issue that was causing it?