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Message
Any Boat Mechanic's lurking around the board...
Posted on 5/13/22 at 7:43 pm
Posted on 5/13/22 at 7:43 pm
I have Yamaha SX200TXRD which is the Salt Water Series OX66 Series II (fuel injected 2 stroke). Just cruising around this weekend it lost power and came off plane. I was able to idle 2 miles back to dock. No power to push itself on the trailer.
I have changed the fuel filter and plugs. No change. After a little trouble shooting I have found out that the 2, 4 and 6 cylinders are not getting any fire. I understand their are coils for each cylinder but it is strange all 3 would fail at the same time.
Most boat mechanics are 3-6 weeks out.
Any help would be appreciated.
I have changed the fuel filter and plugs. No change. After a little trouble shooting I have found out that the 2, 4 and 6 cylinders are not getting any fire. I understand their are coils for each cylinder but it is strange all 3 would fail at the same time.
Most boat mechanics are 3-6 weeks out.
Any help would be appreciated.
8
Posted on 5/13/22 at 7:55 pm to LW
Try the hulltruth.com
Posted on 5/13/22 at 9:36 pm to LW
bass boat central boards are a good place to find help to.
Yes, they named their forum BBC
The hull truth is solid too
Yes, they named their forum BBC
The hull truth is solid too
Posted on 5/13/22 at 10:14 pm to LW
I think I remember reading that Yamahas only idle on 3 cylinders.
Sounds like your VFT filter is clogged up.
Sounds like your VFT filter is clogged up.
Posted on 5/13/22 at 10:55 pm to LW
Sounds like the power pack. I had a similar issue on my old boat.
Posted on 5/14/22 at 6:38 am to LW
Where do you live and what year in the engine? I have a YDIS if you motor is compatible could help diagnose. I can help if you’re close to BR.
I had a cam shaft sensor go out on my F250 and that little laptop paid for itself.
I had a cam shaft sensor go out on my F250 and that little laptop paid for itself.
This post was edited on 5/14/22 at 8:17 am
Posted on 5/15/22 at 9:28 pm to Redlos
(no message)
This post was edited on 5/15/22 at 9:30 pm
Posted on 5/15/22 at 9:32 pm to LW
All 3 coils probably didn't go bad at one time.
Not to say it can't happen.
You most likely lost a switchbox (powerpack) to that side of your motor.
You have 2 switchboxes one for the 1,3,5 side and one for the 2,4,6 side.
I just changed these on my motor because of the same issue.
I can help you diagnose the problem.
Its pretty easy to do.
If it is a bad switchbox I recommend changing both of them at the same time.
It's an easy job to do yourself and save some money in the process.
Not to say it can't happen.
You most likely lost a switchbox (powerpack) to that side of your motor.
You have 2 switchboxes one for the 1,3,5 side and one for the 2,4,6 side.
I just changed these on my motor because of the same issue.
I can help you diagnose the problem.
Its pretty easy to do.
If it is a bad switchbox I recommend changing both of them at the same time.
It's an easy job to do yourself and save some money in the process.
Posted on 5/16/22 at 12:52 pm to Bourbonandrye
Can you point me in a direction so I can test it.
What would be the official name of this switchbox?
I have checked the spark with the motor in gear and out of gear. Same result, no spark on 2,4 & 6.
I live up by New Roads.
What would be the official name of this switchbox?
I have checked the spark with the motor in gear and out of gear. Same result, no spark on 2,4 & 6.
I live up by New Roads.
Posted on 5/16/22 at 12:55 pm to Redlos
I originally thought it might be the cam shaft sensor, but a mechanic told me he has never seen one go out. That still could be an option but It seems unlikely that the spark would be out only on 2,4 & 6.
Posted on 5/17/22 at 12:10 am to LW
Text or gimme a ring. Can prob meet if you wanna hook up YDIS and read codes on engine.
225-five 7 two 9639
225-five 7 two 9639
Posted on 5/17/22 at 12:55 am to Redlos
Good news is that shite is fixable
Posted on 5/17/22 at 1:11 am to LW
They have a shift interrupt that kills 3 cyls. Check the shift switch and the shift linkage for proper adjustment.
Posted on 5/17/22 at 1:25 pm to LW
Two2five2seven0seven1five0
Give me holler I can walk you through it on the phone....its easy to do.
Switchbox is the correct terminology. Some people call it a powerpack basically same thing. I guess it depends on who you are talking with.
Give me holler I can walk you through it on the phone....its easy to do.
Switchbox is the correct terminology. Some people call it a powerpack basically same thing. I guess it depends on who you are talking with.
This post was edited on 5/17/22 at 1:45 pm
Posted on 5/17/22 at 1:49 pm to LW
Sounds like one side of the Stator has taken a dump, perhaps a Power Pack. 99.9% of my engine knowledge is on Mercury through the years, but if Yamaha is designed the same, the two I mentioned are the likely culprits.
Also, if you're in Louisiana, you need to sign up at
Sreeam & Fly. About 75% of folks on that board are Louisiana boat hot rodders and there are some phenomenal mechanics on that board.
Also, if you're in Louisiana, you need to sign up at
Sreeam & Fly. About 75% of folks on that board are Louisiana boat hot rodders and there are some phenomenal mechanics on that board.
Posted on 5/17/22 at 2:02 pm to GWM
Plus one screamandfly.com
A lot of good information on that site. I have met good people on there.
Met the man that built my motor from that site.
Jaysmithracingengines.com
A lot of good information on that site. I have met good people on there.
Met the man that built my motor from that site.
Jaysmithracingengines.com
Posted on 5/17/22 at 2:57 pm to Bourbonandrye
Jay Smith is a good one to know ! He does really good work 
Posted on 5/25/22 at 8:54 pm to GWM
Update!
First off thanks to Bourbon and redlos for a few pointers which eliminated a few things.
After trying to get a shop to look at my motor with not much luck, I decided to eliminate problems. I Finally narrowed it down to probably a crankshaft position sensor or CDI unit. Leaning towards a cdi issue I purchased one from a guy in ocean springs on ebay for $300. 2 days later I received it and installed it. Boom. Went run and everything is fine!
Thanks again to everyone!
First off thanks to Bourbon and redlos for a few pointers which eliminated a few things.
After trying to get a shop to look at my motor with not much luck, I decided to eliminate problems. I Finally narrowed it down to probably a crankshaft position sensor or CDI unit. Leaning towards a cdi issue I purchased one from a guy in ocean springs on ebay for $300. 2 days later I received it and installed it. Boom. Went run and everything is fine!
Thanks again to everyone!
Posted on 5/25/22 at 9:38 pm to LW
Thanks for the update. I love to hear the outcome of posts from guys looking for help.
Posted on 5/25/22 at 9:58 pm to LW
So glad to hear
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