• 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!)

    free hit counter
  • Guest, we are pleased to announce that Hydrophase Ridesteady is offering an extra $100 off for JETBOATERS.NET members on any Ridesteady for Yamaha Speed Control system purchased through March 7th, 2025. Ridesteady is a speed control system (“cruise control”) that uses GPS satellites or engine RPM to keep your boat at the set speed you choose. On twin engine boats, it will also automatically synchronize your engines.

    Click Here for more information>Ride Steady group buy for JetBoaters.net members only

    You can dismiss this Notice by clicking the "X" in the upper right>>>>>

2004 SX230

Dropped74

Member
Messages
10
Reaction score
3
Points
22
Boat Make
Yamaha
Year
2004
Boat Model
SX
Boat Length
23
I am going to look at a very nice SX230 today and wanted to know what I should be looking for. It has 80 hours on it and just had the 100 hour tune up. I’m pretty new to this so just want to make sure I don’t end up with a rotten boat. I appreciate everyone’s time and input!

Nolan
 
Thank you! Some great reading material!
 
I hope you're not telling us that a 2004 (14 - 15 year old boat) just had it's first oil ,filter and spark plug change because it hasn't hit 100 hours yet.

The #3 spark plugs have a habit of snapping off in the engine block due to rust. For this reason most of us have learned to use anti-seize compound on the plug threads in addition to changing them annually. Also oil filters have been known to rust and leak if not changed seasonally or at least every other year.

If this is a garage queen I would look it over very carefully. Better yet bring it to a Yamaha boat/jet ski dealer to have them check it out. Definately take it for a test ride. Make sure the clean out plugs can be removed easily.
 
No, no, it’s had services. He just went ahead and did the 100 hour service as he was about to sell the boat. He has given me the shops info so I can call and talk to them about the history.

If it is a boat I like, I would pay to have a buyers inspection done, just to make sure compression and everything I don’t know to check for checks out.

Thanks for the response all great things to look for when looking it over!
 
  • Agree
Reactions: Gym
Just a word of warning about "Mod Fever". You may think the boat just needs one or two upgrades, but believe me. Once you get started it's hard to stop.
Good luck with the possible purchase. I love our '04 SX230.
 
Just a word of warning about "Mod Fever". You may think the boat just needs one or two upgrades, but believe me. Once you get started it's hard to stop.
Good luck with the possible purchase. I love our '04 SX230.


I am very afraid of this, knowing my history with vehicles!
 
Did sea trial today. It was pretty loud at open throttle. Is this normal. Is there anything you can do to help quiet it down? At idle one motor had more noise to it than the other. Not sure if it’s concerning but also not sure if it’s normal?

Handled great. One owner boat. Didn’t sink.
 
The engines are maximized versions of the r1 motorcycle engine. They're loud, and spin to 10k rpm. Much has been tried to quiet them down, many threads on soundproofing. I cant comment on the effectiveness as I havent done much, on my lake i rarely have the room to open it up.

They're great boats overall. Easy to work on, reliable, and fairly spacious. We love our 07.
 
The one engine that's loud may be due to the impeller contacting the wear ring or ut could be cavitation. At what power setting did you hear it?
 
The engines are maximized versions of the r1 motorcycle engine. They're loud, and spin to 10k rpm. Much has been tried to quiet them down, many threads on soundproofing. I cant comment on the effectiveness as I havent done much, on my lake i rarely have the room to open it up.

They're great boats overall. Easy to work on, reliable, and fairly spacious. We love our 07.


Good to know. Usually between wind and motors it’s always loud so not huge issue but it initially caught me by surprise. I don’t feel it’s a deal breaker. Just want to make sure it’s normal
 
The one engine that's loud may be due to the impeller contacting the wear ring or ut could be cavitation. At what power setting did you hear it?


From idle to 10k Rpm
 
Just closed the deal at 11k. Hope that’s a good deal
 
You stole it at 11k. Itd be likely around 18k here.
 
Sounds like a great deal to me.
 
From idle to 10k Rpm
I would check impeller clearance. look for rub marks on the wear ring. Also check the exhaust hoses, clamps and exhaust manifold inside engine compartment. In any event you got this boat cheap enough that any of those issues I mentioned still make this a good deal.
 
I'm not sure why one engine would seem louder than the other, but the engines being louder than you expected is just the way the MR1 engines are. You'll get used to it pretty quickly. Besides, it gives you a good reason for adding amps and more speakers...lol. LET THE MODS BEGIN! :p

CONGRATULATIONS!
 
You stole it at 11k. Itd be likely around 18k here.
Great deal..i was looking 3 years..finally found a 06 ar 230 for 18k..and thought i got that cheap..yours is a steal!
 
You all probably don't want me to tell you what I paid for our SX230....lol! :cool:
 
Back
Top