swatski
Jetboaters Fleet Admiral 1*
- Messages
- 12,806
- Reaction score
- 18,572
- Points
- 822
- Location
- North Caldwell, NJ
- Boat Make
- Yamaha
- Year
- 2016
- Boat Model
- AR
- Boat Length
- 24
***WARNING***
2015-17 YAMAHA “AR” BOAT OWNERS WITH FORWARD SWEPT WAKEBOARD TOWERS
Be advised Yamaha swept forward towers (including recent AR240 models) can unexpectedly collapse in rough waters resulting in serious injury.
A catastrophic failure of a wakeboard tower occurred in my 2016 AR240 boat on July 10th, 2017. While crossing in rough seas (during the Bimini Fling 2017) the tower in my boat suddenly collapsed with little warning. Standing at the helm, I was hit in the head and shoulders by the collapsing structure and suffered back injury. Two other occupants of my boat (my daughters, ages 16 and 13) were not injured; they were frightened and emotionally traumatized.
Yamaha denies any responsibility for the accident and denies the faulty design and/or manufacturing of the AR tower internal locking mechanism contributed to failure. Yamaha claims that a “partial cross threading” of the lock knob bolt led to the accident and that I, the owner/operator, am solely responsible for this. Yamaha refuses to provide any written report and/or statement concerning the matter.
Given several recent owner reports of AR towers’ mechanism malfunction, Yamaha denial of responsibility appears negligent. Yamaha blames operator error for the catastrophic tower collapse, but the tower locking mechanism design issue is at fault, at least in part.
Buyer beware.
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EDIT (8/5/2017):
For those who just read this now, scroll to Page 8 (Post #151 and on) for corrected information on the lock bolt design. The aluminum mounts have internal steel thread inserts (those are NOT aluminum internal threads); the risk of cross thread is high but it may be difficult to identify.
EDIT (8/6/2017):
(from Page 9, Post #176)
Important:
If according to the Yamaha analysis cross threading is an "operator error", then the operator needs to know of this critical error and Yamaha needs to provide a way for the operator to identify the cross threading (know when it occurs) and how to correct it (how to diagnose and correct).
Keep in mind, the "operator" is not necessarily the owner. The "operator" is whoever tightens the knob, whether this is done at the factory or when the salesperson is demonstrating the wonderful features of the tower, or when its at the shop for repair, or when the sound system, wakeboard racks etc. are upgraded by a licensed dealer or after market contractor.
EDIT (8/14/2017)
This post just about says it all.
Also check out posts #288 and #289.
EDIT (8/28/2017)
We have come up with a possible temporary solution/mod that should VASTLY increase safety - post #319 and also check another thread (https://jetboaters.net/threads/15-ar240-tower-fix.15124/#post-261787)
--
2015-17 YAMAHA “AR” BOAT OWNERS WITH FORWARD SWEPT WAKEBOARD TOWERS
Be advised Yamaha swept forward towers (including recent AR240 models) can unexpectedly collapse in rough waters resulting in serious injury.
A catastrophic failure of a wakeboard tower occurred in my 2016 AR240 boat on July 10th, 2017. While crossing in rough seas (during the Bimini Fling 2017) the tower in my boat suddenly collapsed with little warning. Standing at the helm, I was hit in the head and shoulders by the collapsing structure and suffered back injury. Two other occupants of my boat (my daughters, ages 16 and 13) were not injured; they were frightened and emotionally traumatized.
Yamaha denies any responsibility for the accident and denies the faulty design and/or manufacturing of the AR tower internal locking mechanism contributed to failure. Yamaha claims that a “partial cross threading” of the lock knob bolt led to the accident and that I, the owner/operator, am solely responsible for this. Yamaha refuses to provide any written report and/or statement concerning the matter.
Given several recent owner reports of AR towers’ mechanism malfunction, Yamaha denial of responsibility appears negligent. Yamaha blames operator error for the catastrophic tower collapse, but the tower locking mechanism design issue is at fault, at least in part.
Buyer beware.
--
EDIT (8/5/2017):
For those who just read this now, scroll to Page 8 (Post #151 and on) for corrected information on the lock bolt design. The aluminum mounts have internal steel thread inserts (those are NOT aluminum internal threads); the risk of cross thread is high but it may be difficult to identify.
EDIT (8/6/2017):
(from Page 9, Post #176)
Important:
If according to the Yamaha analysis cross threading is an "operator error", then the operator needs to know of this critical error and Yamaha needs to provide a way for the operator to identify the cross threading (know when it occurs) and how to correct it (how to diagnose and correct).
Keep in mind, the "operator" is not necessarily the owner. The "operator" is whoever tightens the knob, whether this is done at the factory or when the salesperson is demonstrating the wonderful features of the tower, or when its at the shop for repair, or when the sound system, wakeboard racks etc. are upgraded by a licensed dealer or after market contractor.
EDIT (8/14/2017)
This post just about says it all.
While I appreciate your opinion @Williamsone46, I disagree
My current boat is a 2017 AR240.
To store my boat I have to lower the tower. I raise the tower after it's stored to prevent theft. So I've raised and lowered my tower 60+ times. Surely I can tell if the knob cross threads....
I check the knobs frequently just because that's what I do. I. Checked these knobs when I fueled along the way to Hourbor Town. I checked them when I fueled at Bahia Mar. And I checked them when we left the marina the morning of the 10th. It's just pease of mind I guess.
Are these boats not built to go in the ocean? On July 10th there was no small craft advisory. No coast guard telling folks not to go out that day.
During our crossing my port side knob backed out. As the knob got to the last few threads it started to pull at the remainding threads causing the threads to be compromised and wouldn't thread in more than 2 turns. It didn't take an entire season to back out, just a couple hours. I thank the Lord that my starboard side didn't decide to back out or I'd be in the same predicament @swatski or even worse someone could have died.
The seas weren't ideal but weren't extreme either. Nothing these boats shouldn't be able to handle. Yet without any way to lock these towers upright it's an accident waiting to happen.
I haven't spoken to my dealer since their failed attempt to ship me new knobs. Honestly I'd rather not deal with Yamaha unless I absolutely have to.
I don't give damn if you think my incident was user error. I know for a fact it wasn't.
How "periodically" should these knobs be checked? 15 minutes? 30 minutes? 3 hours?
Also check out posts #288 and #289.
EDIT (8/28/2017)
We have come up with a possible temporary solution/mod that should VASTLY increase safety - post #319 and also check another thread (https://jetboaters.net/threads/15-ar240-tower-fix.15124/#post-261787)
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