You may be thinking of the bleeding procedure or the procedure used to measure the oil quantity being delivered over time. Which are performed with the oil pump in the furthest position that it can be.
LIT-18616-02-72 covers the OP's model regarding syncing the oil pump to the throttles. Here...
The oil pump control lever is not supposed to be hitting anything at the wide open throttle position. It is set in the throttle closed position. It will be wherever it will be in the wide open throttle position.
Top secret info. Folks don't want to tell. Keeps us guessing. God only knows what they do with incorrect information because responders confuse motors.
Got to be a two stroke since there is no F in front.
Before you start the motor pull the kill switch lanyard. Then crank the motor. Turn the key to the start position that is. The alarm should sound.
Is this the same sound you are hearing when operating at idle speed?
Water pressure is applied to the speedometer. To a nipple on the back of the speedometer. Within the speedometer itself the pressure is converted to speed.
The three wire connector is so that pressure data can be fed to a Yamaha digital gauge. When an optional sensor is installed. You are not going to be using the connector. I only pointed it out because the sensor to which the connector is connected is plumbed to a port on the block. The same...
Clearly you have a different block.
Your model has provisions for an optional speed sensor and optional pressure sensor. The pressure sensor wiring connector has three wires going to it. Blue/black, black and orange. See if you can find that connector. Should have the letter W on the wiring...
The motor makers have dealers that are set for and intended to provide customer support. Thus Yamaha the USA distributor suggesting that a Yamaha USA dealer be contacted.
Here is the hook up point for an earlier model Yamaha F90. See if your motor has a similar connection point somewhere on it...
Unfortunately, Yamaha has to be this way. A customer misunderstands what he is being told to do, does something that is screwed up, which might cause damage, and he wants to blame Yamaha.
Do you know the model of your 2022 F90? It might just matter.
My guess would be that the majority of users don't want to have to engage a button before the motor can be shifted into gear.
In a panic situation (say the boat is about to be run over) where the boat needs to be shifted and throttled up quickly, I can see someone forgetting to press the...
