1991 gt 150 missing badly around 3000 rpm

[Sea swirl captain]

Motor was running perfectly the night before but today after I topped up the gas at the marina (which only sells premium) it started to miss badly at around 3000rpm ? I had to come back to marina at 15 miles an hr so it would not miss fire .

 

[racerone]

S.L.O.W. mode perhaps.

 

[dingbat]

Check your fuel filter.
Marina fuel is notorious for water contamination. Go out of my way to avoid them

 

[Sea swirl captain]

Filter is two days old , took filter off and dumped gas into a jar ,no water but only got an inch of gas out of a filter the size of a cars seem like it should have more in it ?

 

[Sea swirl captain]

Don’t think it’s slow mode as it is miss firing badly and didn’t do that when it went into slow mode once before when I first bought it , gt 150 has low hrs less than 500 hrs ,but of course the Honda kicker has thousands of hrs .

 

[Sea swirl captain]

Check your fuel filter.
Marina fuel is notorious for water contamination. Go out of my way to avoid them

It would not run at all today so I Took the filter off and no gas in it the filter the ethanol in the gas made the gasket swell up so large it wouldn’t seal the filter so no way for the pump to suck up the gas .

 

[dingbat]

It would not run at all today so I Took the filter off and no gas in it the filter the ethanol in the gas made the gasket swell up so large it wouldn’t seal the filter so no way for the pump to suck up the gas .

Did you fill the filter with gas prior to install?
They will not fill on their own.

If not, crack a fuel line on the motor (vent air) and pump the filter full with the primer bulb