2004 Yamaha 90 2 Stroke cold starting issues

[kcd3]

I cannot start my 90 2 stroke outboard without starting fluid after sitting a day. When warm she starts right up all the time and runs great under throttle. Fuel is good, filter is clean and plugs are brand new. There is a little red lever near carbs, not sure where that should be set. This boat does not have a choke by key switch.If there is a cold start swith does anyone know where that would be located and how to check to see if it working. Any help would be greatly appreciated !

 

[99yam40]

Is the red lever in the auto position so that it will provide extra fuel to motor while it is cold?

 

[kcd3]

I will check in a day or so when I get back to the lake, I did switch it to all postions but it did not affect starting at all.

 

[99yam40]

sounds like you need to take the enrichment system apart and see what is wrong with it

 

[kcd3]

I will try that and see what happens. Thanks Is it right behind that red lever?

 

[robert graham]

The red lever usually has 3 positions, one is on, one is off and the other is normal....or fully automatic enrichening device....operates on an expanding wax pellet, sorta like the thermostat in a car, except the Yamaha outboard unit is heated by electricity while the automotive thermostat is just temperature activated...

 

[kcd3]

Got it, I switched it to on and she started right up. I'll try it tonight with the fully automatic setting..
Thanks so much.

 

[robert graham]

It really needs to operate in normal/automatic position........in the on position your enrichening device will remain on long after your motor has started and warmed up/running correctly....leaving you with a rich condition...fouling plugs, smoking, etc.....

 

[kcd3]

I did notice that it was smoking while running with the switch on..

 

[99yam40]

I will check in a day or so when I get back to the lake, I did switch it to all postions but it did not affect starting at all.

I thought you said you had tried all positions, but now you say the on position makes it start. that does not make any since