newBoat

What is the proper gas mixture for start up for the first time. The instructions for the boat say a ratio of more oil than gas. Is this correct for boats?

This is the boat that I have : http://www.nitrorcx.com/99b-12016-1400-dr260-artr.html

Ron Olson

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I run 8 ounces of oil to a gallon of gas and don't bother with adding more oil for break-in as you're not going to use much fuel anyway in that process. If you want, just set the needles a little bit richer. I actually use campstove fuel and synthetic oil in mine, Coleman or Ozark Trail from Wal-mart and Honda HP-2 oil. The fuel is cleaner burning and has no additives that can harm the gaskets and diaphragm in the carb, especially ethanol.

Ron Olson

My Feedback: (1)

Stupid computer double-posted! [:@]

danielplace

The fuel/oil mix you run can make a difference.

Good CLEAN FRESH filtered non-ethanol gasoline with 10 ounces of a quality 2 stroke oil.

If you want inexpensive there is Mercury quicksilver premium non synthetic available. You want the best get some Maxima castor 927.

The best two stroke fuel around for the money is 100LL from the airport. It is clean and consistant quality that won't go bad on you in a few weeks. Use steel can for your main storage and a smaller one for fueling. I mean if your taking a trip to get fuel you probably want to get 4-5 gallons at a time. Many airports will only pump 100ll into steel cans anyhow. You can get the 5 gal steel cans cheap at a local Race fuel supplier.

Keeping dirt out of the fuel system is absolutely paramount to a engine that won't give you carb troubles for a long time. Throw some dirty old ethanol bearing pump gas in it and you will for sure have issues sooner than you want.

lohring

As far as power goes, Our dyno tests of a lot of different "gasolines" along with different oils at the same 8 oz. per gallon ratio found very little to no difference at the best needle setting. Less than 8 oz per gallon will result in some power loss.  Non ethanol fuels are easier on diaphragms, and our tests won't show differences in engine life with different products. 

The bottom line is that octane doesn't matter in these low compression, industrial type engines.  We did find a power gain over the 40 to 50, 5 second, full power dyno runs during the tests.  That means that the engine can be run at full throttle out of the box but will gain power as things wear in.

Lohring Miller

martno1fan

Youve got that backwards the ratio is more gas to oil,usually most seem to run 8-9oz of oil as mentioned which equates to a mix of 16-1 thats 16 parts gas to oil not the other way round.

http://www.hyderacing.com/instructio..._oil_ratio.htm

MrMikeG

20:1 gas to oil.

martno1fan

Fine in a weed whacker no way ill ever use that mix in anything else,8oz oil minimum for me.
Mart

Jackal1983

Hi Guys
Thought this might be some help to you guys in the UK

Fuel/Oil Ratio	Fuel/Oil Percent	cc/ml per Litre	cc/ml per 5 Litres	cc/ml per 10 Litres	cc/ml per 20 Litres	cc/mm per UK Gallon	Fl.oz per Litre	Fl.oz per UK Gallon
16:1	6.2500	62.5	312.5	625	1250	284	2.2	10
20:1	5.0000	50	250	500	1000	227	1.76	8
25:1	4.0000	40	200	400	800	182	1.14	6.4
30:1	3.3300	33.3	166.5	333	666	152	1.17	5.3

idocdave09

My Feedback: (1)

Not sure where your from but this might work for some of you.
Just find your state and see if you have any place near you.
Dave

http://pure-gas.org/index.jsp?stateprov

Jackal1983

What octain is the American pump station fuel?

95 is our bogstanderd fuel in the uk but you can buy 97 and 99 octain from certain fuel stations to.

lohring

Stock engines will run fine with 4 oz. oil to a gallon.  However, more oil gives more power, at least up to 10 oz per gallon.  I have no idea how the quantity of oil affects engine life, but rod big end bearings are starting to fail after a fairly short time in racing engines.  The solution is oil slots and more oil in the fuel.

Lohring Miller

Steve Seebold 100

It is possible to remove the ethanol from your gasoline too. You can put a gallon of gas in a 2 gallon can, add a cup of water, and shake the crap out of it. Then you let it sit for an hour or so while the water seperates from the gas and as it does, since alcohol is water soluble, the water will remove the alcohol from the gas and since water is heavier than gasoline, the water will then settle to the bottom of your can and you simply pump the gas off the top. Just be careful not to suck up any water from the bottom of the can.

What do you do when the waste that's left in the can? I dump it in a doubled up trash bag and throw it in the trash.

newBoat

Thanks for all the input. My owners manual is dramatically wrong on such items (thanks china). I like the idea of removing the ethanol in gasoline yourself as I don't have any places near me that sells non ethanol gas. Has anyone else done this method?

lohring

We used the water method to measure the amount of ethanol in gasoline. We used a 1000 cc graduated cylinder and didn't shake it much or wait an hour.  it worked very well.

Lohring Miller