Author Topic: 10% ethanol gas sucks  (Read 7405 times)

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Offline wardee1977

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10% ethanol gas sucks
« on: August 27, 2010, 03:24:53 pm »
Was doing some cleaning on my motor before tonights race. I run a mikuni on my vanny 30 cube.  I removed the carb for cleaning and found that the gas has been eating away at the rubber boot.  It didn't put a hole in it, but made the rubber very soft like silicone.  You can actually scrape it off with your finger nail.  My guess is that it will only be a matter of time before it eats it away comletely.  My only guess of what is causing this is the 10% ethanol crap gas we have around here in Northern New York.
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Offline racingjohndeere55

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Re: 10% ethanol gas sucks
« Reply #1 on: August 27, 2010, 03:32:13 pm »
Yup it does.... Try findin some cam2 or av fuel. If that dont work you can always order off VP fuels...

Offline cycloneracer

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Re: 10% ethanol gas sucks
« Reply #2 on: August 27, 2010, 03:44:16 pm »
It sucks so much that is all I will run in my SP.

Paul Krueger

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Offline Toadworks

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Re: 10% ethanol gas sucks
« Reply #3 on: August 27, 2010, 03:59:56 pm »
Marine grade Sta-bil.

Offline wardee1977

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Re: 10% ethanol gas sucks
« Reply #4 on: August 27, 2010, 11:09:35 pm »
I heard about the marine grade stable.  It is the new green stuff.  I am going to give that a try.
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Offline cycloneracer

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Re: 10% ethanol gas sucks
« Reply #5 on: August 27, 2010, 11:11:46 pm »
Got to ask. What rubber boot in a mikuni?
Your not usung a CVT carb are you.
Paul Krueger

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Offline craftsmanracer

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Re: 10% ethanol gas sucks
« Reply #6 on: September 10, 2010, 09:22:39 am »
The gasoline for sale at marinas around here is non-ethanol, but they wont sell it to you unless you are in a boat.

So I pack up 4 5-gallon cans every month and drive my boat down to the marina

Offline racingjohndeere55

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Re: 10% ethanol gas sucks
« Reply #7 on: September 10, 2010, 12:30:38 pm »
What they wackin ya for  boat gas?? We are payin $8.00 a gal for cam 2.

Offline craftsmanracer

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Re: 10% ethanol gas sucks
« Reply #8 on: September 11, 2010, 01:54:41 pm »
it's at around 4.50/gal

Offline leadslead

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Re: 10% ethanol gas sucks
« Reply #9 on: September 12, 2010, 01:28:59 am »
my vp waz 14 and change a gal is it worh it ?? mowshine runs better but its always thirsty little costly to run at 2.5 a night plus oil
STEVE HENDERSON

Offline wardee1977

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Re: 10% ethanol gas sucks
« Reply #10 on: September 14, 2010, 08:33:16 pm »
To reply to the mikuni carb question, I am running a 34mm round slide.  I believe it came off a polaris snowmobile.  It works great. Never had an issue with it, once it is jetted correctly.
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Offline cycloneracer

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Re: 10% ethanol gas sucks
« Reply #11 on: September 15, 2010, 01:12:34 pm »
So your saying the boot that mounts the carb to the engine.  Is it the one that came off the sled or did you make your own?

I use a piece of radiator hose on my FX for the intake and it doesn't like the gas either.  And it has never had any ethanol in it.  The gas just makes it soft because it wansn't desigend for it.

But if it is the boot for the carb it shouldn't get soft no mattter what gas you run.

Paul Krueger

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Offline George Herrin

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Re: 10% ethanol gas sucks
« Reply #12 on: September 15, 2010, 01:21:48 pm »
Use a fuel filler hose cut to length for what ya need. You know the hose that goes from the filler cap to the tank on many vehicles. Bought a 2ft piece at Oriely's no kinda fuel will hurt it.
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Offline wardee1977

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Re: 10% ethanol gas sucks
« Reply #13 on: September 15, 2010, 09:23:52 pm »
Yes my boot it off the snowmobile engine.  The holes line up with the vanny intake holes. All I had to do i port match the boot to the intake.  I like the idea of the fuel filler hose.  How do you attach it to the vanny intake.  You must have some kind of nice billet adapter?
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Offline George Herrin

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Re: 10% ethanol gas sucks
« Reply #14 on: September 15, 2010, 09:39:24 pm »
I havn't used it on a vanny we do however use it on several kart applications and yup they do have some billet adapters.
George Herrin #6
Indian Power.. You gotta Go big to beat em or Go HOME
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My other racer is a 1/5th scale Dirt Late Model!!!!