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boscoe replied to the thread Mariner 9.9 to 15hp upgrade.

Mariner by Yamaha. 9.9 that shares the same block as the Yamaha 15. Is the innerweb better at spreading misinformation than correct...

Mar 24, 2024
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boscoe replied to the thread Mariner 9.9 to 15hp upgrade.

Is this the one of which yee type?

Mar 24, 2024
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boscoe replied to the thread Mariner 9.9 to 15hp upgrade.

Which motor? A Mariner 9.9 of what year?

Mar 24, 2024
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boscoe replied to the thread Mariner 9.9 to 15hp upgrade.

Sounds like the blind leading the blind.

Mar 24, 2024
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boscoe replied to the thread 1998 Yamaha 40 HP motor can't find neutral or reverse, only forward in all gears after replacing impeller..

If you cannot get the shift shaft to engage the shift cam I am seeing a dismantlement of the lower unit in your future.

Mar 23, 2024
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boscoe replied to the thread 1998 Yamaha 40 HP motor can't find neutral or reverse, only forward in all gears after replacing impeller..

Do you see a groove up towards the top of the shift rod? There should have been a circlip there to keep the rod from being pulled from...

Mar 23, 2024
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boscoe replied to the thread Yamaha LZ150 HPDI Runs only when Key held in the start position..

I am not seeing a yellow wire going to the starter relay. Do you have the Yamaha service manual for your motor?

Mar 23, 2024
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boscoe replied to the thread Yamaha LZ150 HPDI Runs only when Key held in the start position..

At the end of the terminal that provides key on power to the CDI box?

Mar 23, 2024
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boscoe replied to the thread Yamaha LZ150 HPDI Runs only when Key held in the start position..

Where was the voltage measured?

Mar 23, 2024
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boscoe replied to the thread Yamaha LZ150 HPDI Runs only when Key held in the start position..

Don't make assumptions. It could be one or more of a number of things.

Mar 23, 2024
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boscoe replied to the thread 2015 Yamaha F40 dc power output.

No idea

Mar 23, 2024
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boscoe replied to the thread Yamaha LZ150 HPDI Runs only when Key held in the start position..

When the key is in the on position do you have battery voltage on the main engine harness yellow wire?

Mar 23, 2024
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boscoe replied to the thread 2015 Yamaha F40 dc power output.

Net output is 13 amps. Should be able to achieve that when at approximately 1500 RPM.

Mar 22, 2024
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boscoe replied to the thread 2015 Yamaha F40 dc power output.

Is the complete model of the motor not known?

Mar 22, 2024
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boscoe replied to the thread Constant 12v on on of the 2 coil wires.

The coils have battery voltage applied to them when the key is turned on. On the red/yellow wire. The other two wires do not give...

Mar 22, 2024

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