rough water stumble

[seabass65]

my, 1990 250 sw series runs great at any rpm in smooth water. in rough water and over 4000 rpm it will stumble when i hit a larger waves . any ideas??

[jb123]

clean vst tank and clean/replace filter

OOps... just noticed 1990... which will have carbs

[seabass65]

rough water stumble

thanks for the tip will give it a shot.

[seabass65]

good tip

Had vst filter changed . Tech told me was really nasty in there should take the waves no problem

[99yam40]

There maybe other filters and/or screens that need attention if the VST was that bad

[pirate60]

What is the VST?

I see this being used frequently. Can someone tell me what this is? I have been having a problem with my 2003 150 stumbling in rough water also.

[99yam40]

vapor separating tank

[pirate60]

rough water stumble

Thanks to the forum folks for the good advice!!
I just changed the filter in the VST and it did the trick.
This place is a great source for technical info.

[jb123]

u sure you have a 1990 ??