2002 225 Weekender misfires

Frank A.

New Member
Aug 8, 2017
10
South Shore, Long Island, NY
Boat Info
2002 Sea Ray 225 Weekender
Engines
5.0L B3
Hi,

Came across this forum and registered so I could ask this question. I own the subject boat with ~420hrs on it. In purchasing it late last year, this is my first full season with the boat. I've noticed that when trying to plane out, or whenever I'm running between 1000-1500rpms, the engine seems to misfire. Once planed-out it runs smooth. Although my mechanic took it for a ride and said it was nothing serious, it bothers me. Any thing I can try? Oil is very clean & I'm told there is an additive in the fuel at the marina.

Also, my daughter has a 215 Express about the same age & hours and I notice that their boat runs much much quieter. I have a swim platform, they do not. Could that be the source of the engine loudness?

Thanks in advance,

Frank
 
Hi,

Came across this forum and registered so I could ask this question. I own the subject boat with ~420hrs on it. In purchasing it late last year, this is my first full season with the boat. I've noticed that when trying to plane out, or whenever I'm running between 1000-1500rpms, the engine seems to misfire. Once planed-out it runs smooth. Although my mechanic took it for a ride and said it was nothing serious, it bothers me. Any thing I can try? Oil is very clean & I'm told there is an additive in the fuel at the marina.

Also, my daughter has a 215 Express about the same age & hours and I notice that their boat runs much much quieter. I have a swim platform, they do not. Could that be the source of the engine loudness?

Thanks in advance,

Frank


welcome to CSR....I would suggest doing a full tune-up on the engine to start with....many, many times issues like you are having get fixed with a tune-up....

I used to own a 215EC so I am familiar with the sound of the engine and outdrive....if your 225WE is louder than a 215EC you may be hearing excessive whine from the gears in the outdrive, not the engine.....I suppose it is possible the swim platform could be enhancing the sound of the outdrive but I would think just the opposite in that the platform may reduce the noise.......the engine is undercover with soundproofing....most of the noise you hear is likely the outdrive....it may not hurt to have an experienced mechanic take a look at the outdrive just in case there is an issue.....plus you have a Bravo drive and the 215EC probably has an Alpha drive.....two very different drives with different sounds....

plus it is possible something is wrong with the engine exhaust on your boat making it louder than it should be.....a mechanic can check that also...

good luck...

cliff
 
Last edited:
Second the tune up advice from Cliff! I have seen a corroded cap and rotor cause this exact problem on this engine more than once.
 
Cliff mentioned the exhaust. With Bravo III's they have an exhaust bellow that attaches to the outdrive which allows the exhaust to exit the center of the propeller. It could have a hoe in it- -or- when I had mine replaced, the local marina just installed a 1/2 rubber sleeve coming out of the transom gimbal area and not extending fully, like the exhaust bellow, to the outdrive. It was very loud and annoying because the exhaust is now coming out of the gimbal location . I had them immediately replace it with the correct bellows.
 
This post is a little old or I'm just new but......don't spend a penny till you do a compression check. You be surprised if your boats ever been in sea water.
 
Espos4,

The marina changed out first the ICA valve, then cap and rotor. That did the trick. My "I'm back....." was referring to 1 and done.
 

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