-
Welcome to Jetboaters.net!
We are delighted you have found your way to the best Jet Boaters Forum on the internet! Please consider Signing Up so that you can enjoy all the features and offers on the forum. We have members with boats from all the major manufacturers including Yamaha, Seadoo, Scarab and Chaparral. We don't email you SPAM, and the site is totally non-commercial. So what's to lose? IT IS FREE!
Membership allows you to ask questions (no matter how mundane), meet up with other jet boaters, see full images (not just thumbnails), browse the member map and qualifies you for members only discounts offered by vendors who run specials for our members only! (It also gets rid of this banner!)
Engine over heat after tow rope caught
Cambo
Jetboaters Captain
- Messages
- 1,268
- Reaction score
- 891
- Points
- 227
- Location
- Long Island
- Boat Make
- Yamaha
- Year
- 2017
- Boat Model
- 242X E-Series
- Boat Length
- 24
So now both engines are throwing a code at the same time? Sounds like an electrical gremlin corroded sensor plug when you swapped it maybe some corrosion was left behind ? How did the plug on the harness look?
Are you the original owner ? Is it a saltwater boat ?
Are you the original owner ? Is it a saltwater boat ?
Cambo
Jetboaters Captain
- Messages
- 1,268
- Reaction score
- 891
- Points
- 227
- Location
- Long Island
- Boat Make
- Yamaha
- Year
- 2017
- Boat Model
- 242X E-Series
- Boat Length
- 24
Good info in this link
I like the added trail tech temp gauge . Let me know if the sheared bolt came out with my recommendation to drill and use the Allen key
I like the added trail tech temp gauge . Let me know if the sheared bolt came out with my recommendation to drill and use the Allen key
Jmpicking
Well-Known Member
- Messages
- 111
- Reaction score
- 9
- Points
- 57
- Boat Make
- Yamaha
- Year
- 2014
- Boat Model
- AR
- Boat Length
- 21
I’m not the original owner it is in saltwater .the plug looked real clean that I swapped. So the good engine now says check engine and the bad engine still says overheat
- Messages
- 5,865
- Reaction score
- 5,351
- Points
- 452
- Location
- Florida
- Boat Make
- Yamaha
- Year
- 2021
- Boat Model
- Other
- Boat Length
- Other
Nope it is your jet pump as discussed the holes on the left side where the square part with the hoses coming out is where the water to the engine comes from. I think you have sensor and electrical issues . Yamaha had a bad reputation in the past for bad heat sensors not so much recently. people would add resistors to the sensor pickup connection to fool the computer into thinking the sensor was still attached. Once you have issues with those it's never going to stop without fixing it.
Jmpicking
Well-Known Member
- Messages
- 111
- Reaction score
- 9
- Points
- 57
- Boat Make
- Yamaha
- Year
- 2014
- Boat Model
- AR
- Boat Length
- 21
So I swapped the one sensor but I could quite reach the other sensors without taking off a ton of stuff . And after swapping the last sensor the check engine light went off on the non overheating engine, so I swapped it back and it still it saying check engine, and the the throttle is jammed ! So I have no clue what happened during that swap.
Cambo
Jetboaters Captain
- Messages
- 1,268
- Reaction score
- 891
- Points
- 227
- Location
- Long Island
- Boat Make
- Yamaha
- Year
- 2017
- Boat Model
- 242X E-Series
- Boat Length
- 24
Can you send pictures of your jet pumps just curios to see how they look . The throttle jam could be the shift gate cable is corroded
- Messages
- 5,865
- Reaction score
- 5,351
- Points
- 452
- Location
- Florida
- Boat Make
- Yamaha
- Year
- 2021
- Boat Model
- Other
- Boat Length
- Other
hmm did you leave something inside the engine compartment that is locking up the throttle or is there something locking the reverse bucket just guessing
Jmpicking
Well-Known Member
- Messages
- 111
- Reaction score
- 9
- Points
- 57
- Boat Make
- Yamaha
- Year
- 2014
- Boat Model
- AR
- Boat Length
- 21
I have no idea, I really didn’t touch anything on that engine, I’ll look closer when I get home, im99% sure all I touched was the thermoswitch and swapped it . But I swapped it back, so now it’s the original one and throttle still locked and check engine is still on .. doesn’t make sense
- Messages
- 5,865
- Reaction score
- 5,351
- Points
- 452
- Location
- Florida
- Boat Make
- Yamaha
- Year
- 2021
- Boat Model
- Other
- Boat Length
- Other
Most likely the stuck throttle is something that is in the way of the reverse bucket.
Jmpicking
Well-Known Member
- Messages
- 111
- Reaction score
- 9
- Points
- 57
- Boat Make
- Yamaha
- Year
- 2014
- Boat Model
- AR
- Boat Length
- 21
Where’s that located I don’t see it on parts breakdown
- Messages
- 5,865
- Reaction score
- 5,351
- Points
- 452
- Location
- Florida
- Boat Make
- Yamaha
- Year
- 2021
- Boat Model
- Other
- Boat Length
- Other
It's on the nozzle the part that moves up and down when you put the boat in forward or reverse if it gets stuck the throttle can become inoperable
tdonoughue
Jetboaters Admiral
- Messages
- 4,883
- Reaction score
- 4,017
- Points
- 402
- Location
- The Woodlands, TX 77381
- Boat Make
- Yamaha
- Year
- 2012
- Boat Model
- AR
- Boat Length
- 24
Do our check engine lights say on until cleared?
Hypothesis: swapping the (allegedly) bad sensor to the good engine caused the check engine light (masked on the bad engine because it read it as overheat in conjunction maybe with the other bad sensor?). Now un-swapped, the engine is still throwing the code because it is not been cleared via YDS.
Further hypothesis: both sensors are bad on the overheating engine.
Do you have or do you have access to a YDS? I don't see a location on your profile, but if you fill that in, there may be a nearby member who can lend you one.
Hypothesis: swapping the (allegedly) bad sensor to the good engine caused the check engine light (masked on the bad engine because it read it as overheat in conjunction maybe with the other bad sensor?). Now un-swapped, the engine is still throwing the code because it is not been cleared via YDS.
Further hypothesis: both sensors are bad on the overheating engine.
Do you have or do you have access to a YDS? I don't see a location on your profile, but if you fill that in, there may be a nearby member who can lend you one.
Jmpicking
Well-Known Member
- Messages
- 111
- Reaction score
- 9
- Points
- 57
- Boat Make
- Yamaha
- Year
- 2014
- Boat Model
- AR
- Boat Length
- 21
So update... my mechanic worked on it for 7 hours today.
He replaced the sensors, computer, reset codes using the software, took the manifold off, and other things, ran it on the water, still says overheat.
He told me the engine is not actually overheating it just thinks it is, but he can’t figure out why since he replaced everything having to do with it.
He says it’s got demons in it..
Any thoughts?
He replaced the sensors, computer, reset codes using the software, took the manifold off, and other things, ran it on the water, still says overheat.
He told me the engine is not actually overheating it just thinks it is, but he can’t figure out why since he replaced everything having to do with it.
He says it’s got demons in it..
Any thoughts?
Scottie
Jetboaters Commander
- Messages
- 451
- Reaction score
- 566
- Points
- 192
- Location
- Helena, Alabama
- Boat Make
- Yamaha
- Year
- 2013
- Boat Model
- X
- Boat Length
- 21
I don't have any good suggestions as to what's causing the overheat alarm, but those findings certainly line up with the temps you were measuring yourself, so I would trust that assessment. At least it's not actually overheating, for whatever that's worth.
- Messages
- 5,865
- Reaction score
- 5,351
- Points
- 452
- Location
- Florida
- Boat Make
- Yamaha
- Year
- 2021
- Boat Model
- Other
- Boat Length
- Other
when in doubt hit every stinking ground wire you can find and check them for continuity and be sure it is making good contact as well as clean any wire connectors and spray them with silicon just in case water is shorting out a plug happens to me occasionally spray silicon on all the wire connectors it will fix it instantly.