Yamaha 90 HP emergency stop

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C_M_25
Posts: 286
Joined: Sun Jun 01, 2014 2:12 pm
Location: Central Oklahoma

Yamaha 90 HP emergency stop

#1 Post by C_M_25 » Sun Nov 20, 2016 7:16 pm

Hey guys. Quick question. I was out today, and I was moving at full speed (24 mph) when the water bottom suddenly came up on me. Literally from 40 feet to less than 10 feet in no time. I downshifted quickly to neutral but maybe a little to quickly into reverse. The motor dies (stalled?). I shifted back to neutral and it started right up. Is this a fail safe on the motor to prevent damage?
2014 Sweetwater 2086SW
90 Hp Yamaha 4-stroke

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teecro
Posts: 1028
Joined: Sat Jul 12, 2014 7:23 am
Location: Sunset Bay, TN

Re: Yamaha 90 HP emergency stop

#2 Post by teecro » Sun Nov 20, 2016 7:27 pm

If you had too much forward motion when you shifted to reverse the water movement across your prop tries to turn the motor the opposite direction and can cause a stall...
T CRO
2017 Berkshire CTS 24 RFX with Yamaha F150/Simomized 200
2015 Caravelle 16 EBo with Mercury 90

C_M_25
Posts: 286
Joined: Sun Jun 01, 2014 2:12 pm
Location: Central Oklahoma

Re: Yamaha 90 HP emergency stop

#3 Post by C_M_25 » Sun Nov 20, 2016 7:36 pm

Any risk of damaging anything when this happens?
2014 Sweetwater 2086SW
90 Hp Yamaha 4-stroke

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teecro
Posts: 1028
Joined: Sat Jul 12, 2014 7:23 am
Location: Sunset Bay, TN

Re: Yamaha 90 HP emergency stop

#4 Post by teecro » Sun Nov 20, 2016 7:56 pm

[quote="C_M_25"]Any risk of damaging anything when this happens?[/quote]

Minimal...
T CRO
2017 Berkshire CTS 24 RFX with Yamaha F150/Simomized 200
2015 Caravelle 16 EBo with Mercury 90

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slingshot
Posts: 456
Joined: Thu Nov 13, 2008 7:20 am

Re: Yamaha 90 HP emergency stop

#5 Post by slingshot » Tue Nov 22, 2016 4:40 am

It's a Yamaha. Strongest dog clutches in the industry. I wouldn't make it a habit on any outboard though.
2007, 2570 Crest LE II
Yamaha F150

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