Fuel Mixture Mixing 2 cycle oil 50:1, not a big deal

Good deal Van, now it's time for our Metric-Math person (yoo-hoo, Jemma, they taught that stuff in YOUR schools, not ours) to put the exact measurements in the thread.

Best of recollection, the 22 oz tank on the engine needed a little over 12cc/ml. The 25 oz/1 liter spare containers I carry need a little over 15cc/ml.

I have two of those little black zippered bags on the basket, the one on the right "barely" fits the 2 1/2 gallon sized oil mix bottle. I've seen that bottle of yours ONCE in a smaller size, think its a goat wormer bottle.

Do NOT buy $79 dollars worth of goat wormer just to find a similar/smaller bottle, but lets peel our eyes while shopping, see if some other product uses a similar bottle (weed killers ??) .
 

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I use the same tip that Alaska uses. Re-using the " Sta-bil" measuring bottle works great!
 
thanks for all this info. i just dont have any more room in my backpack for a fuel can and i was considering pouring in the oil and shaking the bike. i will put the correct amt of oil for a full tank in a small jar.
having run out of gas twice has finally taught me that i better be prepared.
i ride a spookytooth cycle and they recommend 20:1 for breakin and after. there sure seems to be alot of debate about the mix but i think i will still fallow rolands orders.
 
thanks for all this info. i just dont have any more room in my backpack for a fuel can and i was considering pouring in the oil and shaking the bike. i will put the correct amt of oil for a full tank in a small jar.
having run out of gas twice has finally taught me that i better be prepared.
i ride a spookytooth cycle and they recommend 20:1 for breakin and after. there sure seems to be alot of debate about the mix but i think i will still fallow rolands orders.

Just for clarification, the Japanese and most Eurobrand small engines (Stihl chainsaw for instance) are 50:1. "Unofficially", once the engine has achieved thousands of miles, they can be "leaned up" to 60:1, by putting an extra 1/10 gallon in your gas can.

I have been told by small engine repair shops that the 25cc engine that I ran to Denver, which may have 5-6,000 miles on it now, would be an excellent candidate for Amsoil synthetic 100:1, but keeping a seperate mix for that engine versus the ones I'm breaking in to sell would confuse me quick.

Even IF I were going to switch to highest grade synthetic, I would "ease my way into it". Run a gallon at 75:1, see if I detect any performance changes (and it really does reduce smoke and fumes, because I've used Amsoil on road trips, mixing by the tank.)

If you avoid cheap gas, if you seriously do the break-in steps (varying throttle speeds for 3 tankfulls of gas), and ALWAYS use "quality" mix like Stihl/RedMax/Tanaka 50:1, then Amsoil 100:1 might be THE answer for long distance cruising, 2-3 capfulls per tank.

This next part regards long distance travel, not local:

I'm not too up on the Chinese engines, but I think the tanks hold a half gallon. You would not take a bike out for 2-300 mile overnight cruises until you've finished the 20:1 break-in anyway.

Your advantage is "more capacity per fillup", while we can "eyesight guesstimate" with the transparent plastic tank.

This comes into play when you have to topoff the tank. For instance, going due east out of Grand Junction,CO a sign says "74 miles till next gas". So it doesn't matter how much the tank needs, you are going to top off the tank before heading into the wilderness.

Major towns that might have "quality gas" available, are 30 miles apart (the distance a horse can easily travel in a day). You can't bank on finding a major brand gas in every town, often there is one option, and it usually is cut with ethanol, and vapor locking in Kansas taught me a lesson I never want to repeat.

What I'm getting at is carrying a jar, for a full tank mix, won't work if you FINALLY find a gas station to "top off the tank", can't hold a full half gallon.

My "four capfulls" per tank ratio gives you 50:1. 2-3 capfulls of Amsoil 100:1 would protect my cylinder, but only on my engine, not one I am selling.

But the Chinese tanks need to get some sort of "capfulls per 1/10 gallon" ratio established, or using the bottle Van & Estaban described "cc/ml per 1/10 gallon", for traveling thru the countryside.

Once you folks have that established, make it MB.law, it will be easier to remember touring out of town, away from the gallon pre-mixed at your house.

Hopefully it will work out to something like "1 cap or 2 capfulls per 1/10 gal", but I'll let you guys do that math.

Just remember, there really is no debate on mixing oil, some folks are running with Japanese apples and the others are running on Mandarin oranges.

Proper mixing in both cases avoids creating lemons.
 
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Man,if I plan to go 2 or 300 miles thru the desert,I'll carry a gallon container full of pre mix along for the ride. I would mount it like this:
http://www.motoredbikes.com/showpost.php?p=76657&postcount=11
It's proven not to get in the way.
It would be nice too to just carry pre mix with you,but to get the right mix you would have to essentially run out of gas or get to vapor low then time it right between pumps.
I would feel safer just taking that gallon tank along,then not go to a pump till that gallon container is finished and your tank is still pretty full.
 
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When I go to the local Standard station for fuel, I buy about 8 gallons, then mix the fuel for the bikes a gallon at a time. And because of the folks coming out to demo ride, a gallon barely lasts a week, never a "old mix" sitting around.

But I mentioned how I hid a half-gallon on the outskirts of the county seat, about 25 miles from the house, so when I take a customers bike for a long ride, and it has no basket or bottle carriers for spares, I can stop by the poplar log, 15 paces from the "35 Speed Limit" sign, fill up and go.

Well, scientifically proven this weekend that the fuel/oil mix deteriorates somewhere between a month to six weeks. Temps have been in the eighties, if that has anything to do with it, but my stash point is a shady spot.

I brought along a fresh gallon last Saturday (the little red plastic cans are on sale at General Dollar for $2 this week, I bought 4 as "customer gifts"). I had a bit left in the original can bought six weeks ago, filled my tank halffull, and the spare all the way.

Performance deteriorated, especially on hills, until yesterday when we took two bikes on a ride to find a high school classmate.

So, I think a month is the longest a gallon can of mixed will last, and if you do my "hidden in the bushes" fillup sites in your area, rotate them at least by week 6, you will get home, but not at full speed/power.

The other half of the gallon I took out Saturday I hid 10 miles north, in some privet hedge at a "Y" in the road, another stash site.

Good thing it was my brother on Rocinante burning the old gas thru on a T-33cc, I was on an Avalon with a 25cc, beating the pants off him uphills, until we ran 30 miles or so, then he steadilly increased to about 2-3 miles per hour faster than me.

Thats when I told him about the old gas, you can't let the laboratory rat know he is testing something to get scientific info.
 
Gas Storage/Engine Question

Okay, I toss the gas over a month old, including what is in engine fuel cell into mower tank (30:1), say 5 to 10oz;

or, should I add a bit of Sta-Bil, run it and store until next spring?
 
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