90 Yamaha. Dies when put into gear.

Yamaha 90 2stroke 2003 model.
3 carbys oil injected.

Sometimes,,hate this intermittent stuff,,sometimes it will start, run stop in the same amount of time it takes to say that. But only when the fuel level in the main tank is low. Switch to second tank and away it goes.

But today.
Start and idle ok on both tanks but when put into gear it stops.Does this a dozen or so times before it will idle in gear. Then stops 3 or 4 times in gear before , Away we go.

With the gear I had on the beach today I changed the plugs, drained the carbys, emptied the fuel separator but still the same.

Got me buggered. Any ideas. Anyone.

Rod

[jb123]

do yourself a favor and REMOVE the quick disconnect.

make sure tank is vented, you have no airleaks, ball is not collapsing when this occurs.

if all checks out ok then its time to clean carbs.