Can gas be tested to see if it is bad?

I had the tank drained about a month ago. Filled it up (added Stabil) and it ran fine for 4 outings. Put gas in it on Wednesday. Put it in Thursday and it ran fine for about 1 mile, then it started to bog down. Just like it had bad gas in it. No hole shot and bogs down at full throttle.

Can the gas be tested to see if it is bad?

Fishb8 (Fish Bait)

23 Sea Hunt “My Last Boat V”

If you can’t stand behind our soldiers, try standing in front of them.

Fish, run some in a clear glass jar and let it sit for about 10 minutes. Then look at the bottom and see if there’s any water or other stuff at the bottom. Could just be water in gas. You got a 4 stroke or 2 stroke?

'06 Mckee Craft
184 Marathon
DF140 Suzuki

it is a 4 stroke

Fishb8 (Fish Bait)

23 Sea Hunt “My Last Boat V”

If you can’t stand behind our soldiers, try standing in front of them.

Have you replaced the fuel water separator (fuel filter) lately?

'06 Mckee Craft
184 Marathon
DF140 Suzuki

yes when the tank was drained (about a month ago)

Fishb8 (Fish Bait)

23 Sea Hunt “My Last Boat V”

If you can’t stand behind our soldiers, try standing in front of them.

Look at the bottom of the fuel filter bowl and see if there’s anything in it. Put your jar under the petcock on the bottom of the filter bowl and drain somegas into it. See what that looks like and that will give you an idea of whats in the tank.

'06 Mckee Craft
184 Marathon
DF140 Suzuki

does it respond to open flame? if not then I would say it is bad…

The Morris Island Lighthouse www.savethelight.org

It still burns, because the motor still runs. but it will bog down.

Fishb8 (Fish Bait)

23 Sea Hunt “My Last Boat V”

If you can’t stand behind our soldiers, try standing in front of them.

tigerfin, I will check it when I get home

Fishb8 (Fish Bait)

23 Sea Hunt “My Last Boat V”

If you can’t stand behind our soldiers, try standing in front of them.

I have seen the same thing with a stopped up fuel filter. Does the primer ball get sucked flat? If so that is a dead give away for a bad filter or fuel line. Also does your Yamaha beep when in neutral? Most Yammers have a neautral beep alarm on the engine mounted water seperator.

Good luck!

ZX

quote:
Originally posted by tigerfin

Fish, run some in a clear glass jar and let it sit for about 10 minutes. Then look at the bottom and see if there’s any water or other stuff at the bottom. Could just be water in gas.


This is the bad stuff - polished from my SeaPro last season:

Thanks, Captain Ross
http://T-Topless.com folding, stainless steel T-Top fits most center console boats
http://ShadowTop.com entry level (Do-It-Yourself) T-Topless kit
http://Montauk-T-Topless.com for Boston Whaler Montauk, Dauntless or Outrage
http://Flats-Top.com Shade for Flats Boats
http://RNR-Marine.com/Canvas.shtml Original OEM factory replacement Sunbrella canvas for Sea Pro, Sea Boss, McKee Craft, Key West, Sea Hunt, Cobia, Sea Fox, Pioneer, Everglades, Tidewater, Mariah, Cobia, Caravelle, Baha Cruisers & Palmetto Custom.</font id=“size1”>

Drop your top and go T-Topless! T-Topless@RNR-Marine.com

tank, no beeps.

there is no other indications except it did sound like it backfired every so often. But I have never heard a 4-stroke backfire while in the water, so I’m not sure thats what it was.

Fishb8 (Fish Bait)

23 Sea Hunt “My Last Boat V”

If you can’t stand behind our soldiers, try standing in front of them.

lets put it in my work truck and i’ll test it for you. if it all burns without the truck blowing up- it must be good.

OUR GOVERNMENT HAS BECOME THE ENEMY OF FREEDOM.

It looks like the gas is good. This it what it looked like after sitting all night.

So now what? What else would cause the motor to bog down?

Fishb8 (Fish Bait)

23 Sea Hunt “My Last Boat V”

If you can’t stand behind our soldiers, try standing in front of them.

Spark plugs ?? If that hasn’t been mentioned yet

Bragging may not bring happiness,
but no man having caught a large fish,
goes home through the alley.
-Anonymous

quote:
Originally posted by Fishb8

It looks like the gas is good. This it what it looked like after sitting all night.


Where did you get this fuel? It needs to come from the fuel line (before the fuel/water separator) or emptied out of the fuel water separator so you’re looking at fuel from the bottom of the tank.

What does this jar of gas smell like? Does it have a strong gasoline smell or just a faint odor?

quote:
Originally posted by Fishb8 "My Last Boat V"

Now, that’s funny!

Thanks, Captain Ross
http://T-Topless.com folding, stainless steel T-Top fits most center console boats
http://ShadowTop.com entry level (Do-It-Yourself) T-Topless kit
http://Montauk-T-Topless.com for Boston Whaler Montauk, Dauntless or Outrage
http://Flats-Top.com Shade for Flats Boats
http://RNR-Marine.com/Canvas.shtml Original OEM factory replacement Sunbrella canvas for Sea Pro, Sea Boss, McKee Craft, Key West, Sea Hunt, Cobia, Sea Fox, Pioneer, Everglades, Tidewater, Mariah, Cobia, Caravelle, Baha Cruisers & Palmetto Custom.</font id=“size1”>

Drop your top and go T-Topless! T-Topless@RNR-Marine.com

It came from the water separator clear bowl. it smells like gas, I will give it a good sniff test when I get home. I can compare it to the lawnmower gas.
It does appear to be light in color.

Glad you like the boat name. (trying to talk the wife into VI)

Fishb8 (Fish Bait)

23 Sea Hunt “My Last Boat V”

If you can’t stand behind our soldiers, try standing in front of them.

Most of the 4-strokes also have a filter on the engine … need to check it as well.
I don’t have any experience on 4-stroke O/B’s myself, but try a search -
I’ve seen several discussions on the subject.

Thanks, Captain Ross
http://T-Topless.com folding, stainless steel T-Top fits most center console boats
http://ShadowTop.com entry level (Do-It-Yourself) T-Topless kit
http://Montauk-T-Topless.com for Boston Whaler Montauk, Dauntless or Outrage
http://Flats-Top.com Shade for Flats Boats
http://RNR-Marine.com/Canvas.shtml Original OEM factory replacement Sunbrella canvas for Sea Pro, Sea Boss, McKee Craft, Key West, Sea Hunt, Cobia, Sea Fox, Pioneer, Everglades, Tidewater, Mariah, Cobia, Caravelle, Baha Cruisers & Palmetto Custom.</font id=“size1”>

Drop your top and go T-Topless! T-Topless@RNR-Marine.com

had same thing happen come to find out it was the inline filter
that in the tube coming out of the tank. removed it an just
us the other filters runs great now

Hey fishb8, what year and what hp?

'06 Mckee Craft
184 Marathon
DF140 Suzuki