2 Stroke Folks?

Discussion in 'Battle Scooters' started by Bugtussle, Feb 17, 2012.

  1. Bugtussle

    Bugtussle Been here awhile

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    Im thinking about a Stella 2 stroke for my next scooter. I thought this would be a good place to ask the question about ethanol fuel use in a 2 stroke. The boat and chainsaw guys around here run clear premium(no ethanol)in there motors. I do have one local station that carries it but its expensive and hard to find once I leave town. What are you 2 stroke guys running for fuel and oil mix in these days of corn squeezin's fuel everywhere?
    #1
  2. cnw126

    cnw126 Been here awhile

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    I have a 2001 Yamaha Zuma, 50cc two-stroke. Stock.

    I am running the standard 87 octane E10 fuel that we have in Delaware. I use Yamalube injector oil.

    I have not had any problems.
    #2
  3. hugemoth

    hugemoth Long timer

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    I've had no problems using 10% ethanol regular gas in my 2 stroke engines, including my Rotax aircraft engine. Listen for pinging during high speed runs and use a higher octane fuel if necessary. My favorite 2 stroke oil is Pennzoil non synthetic because of low carbon build up and good corrosion protection of the bearings.
    #3
  4. lifer

    lifer Been here awhile

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    I have used ethanol fuel in my zuma and my KDX220 but I try to use fuel without ethanol as much as possible. The bikes run ok on the ethanol stuff but Where I live my bikes sit for long stretches of time without being used, partly because I have 4 bikes but also because of winter. The ethanol damages seals and metal 24-7-365 so I prefer to not have it in the bikes if possible. That said I do not get bent out of shape if I have to fill a tank or 2 of the ethanol stuff.
    #4
  5. seraph

    seraph asshole on a scooter

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    I've had my Stella for 3 years and who knows how many miles, and it's never had an ethanol-related problem. All of the gas in my area is E10, including premium.

    I know a ton of 2-stroke scooterists, many (myself included) using them as daily drivers, and many running vintage bikes, and it never comes up. I'd use ethanol-free if I could find it, but it's potential issues are overhyped IMO.

    I've heard some chat about this StarTron stuff for treating E10 fuels, though. I'd probably buy some if my scooter sat for long.

    Stellas are a blast, by the way. Finicky bitches - you will very likely have to do minor electrical & carb work - but tons of fun nonetheless.
    #5
  6. thunderkat59

    thunderkat59 Cooter on a scooter

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    ♘ ④⓪②⓪⑤ &#9816
    I put anything on my Stella. Cant remember if any was ethanol based, though.
    My Stella was one of only two bikes I really, really miss. If I could get another, I would.
    On club runs, when I knew it was going to be WFO all day long, I'd put a few capfuls of
    oil in the gas in addition to the auto-lube mix.

    OFF-TOPIC TO O.P.------ What do you think of your Symbas ?
    :beer
    #6
  7. Phipsd

    Phipsd Been here awhile

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    I rode ring ding road bikes for many years. In those days people were saying that you had to run leaded premium and it was mostly bunk unless for racing. I used the cheapest unleaded petro swill and never had a problem. I would use premium only if there is pinging or the bike only sees occasional use. E-gas will go bad quicker than the premium fuels that have none.

    I used Checron 2 stroke oil instead of the pricey injector oil . In those days synthetic was new and priced like gold. The Chevron was actually marine oil but rated up to 100 to 1. These days I would use the synthetic to appease the smog gods.
    #7
  8. seraph

    seraph asshole on a scooter

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    Scooter club runs? Most of the ones I've been on have been lead by clubs with Stella- or vintage-riding members, so they're always tuned to the right speed.

    A stock Stella is not a high-strung engine,and honestly can probably get around fine with shitty gas and cheap 2-stroke oil. I run decent-to-nice 2-stroke (cheap for scooter/motorcycle stuff, but leagues ahead of chainsaw oil) oil because it's cheap piece of mind. Motul Scooter Expert, currently, though I prefer the Motul 510/710 (less smoke, I think).

    I know you don't have it any more, but other owners - be wary of putting additional oil in the tank. It displaces fuel, so it can cause a lean condition. The oil injection system is actually pretty trick and meters out oil based partially on rev AND throttle, so it does a pretty good job of maintaining the right mix. Assuming it is all working right!

    'Round these parts (WA state), I think most mid-grade and premium gas is 10% ethanol as well. Can't avoid it!
    #8
  9. Forde

    Forde Been here awhile

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    put whatever you want in it mate they are super simple engines they wont care tbh
    #9
  10. starreem

    starreem Adventurer

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    There's a bit of speculation, in the vintage world, the ethanol tends to eat away at seals, and other non metal parts. Some are blaming stuck floats and needles on swelling rubber and nylon bits. If you are really concerned look here: http://pure-gas.org/ for non-ethanol gas in your area.
    #10
  11. vortexau

    vortexau Outside the Pod-bay

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    Ethanol in two-stroke outboards

    There you have it! If you see a rider really shaking up his Two-stroke Scooter before a ride -- here's the reason.

    alternately, one could isolate the fuel tank on rubber mounts, and make up a 12v vibration (fuel mixer) system from their ex-girlfriend's old battery model left in the nightstand.

    [​IMG]

    Then you could fit the activation switch onto the dash.

    #11
  12. HowHH

    HowHH Adventurer

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    The Genuine Stella is a modern scooter and it's rubber bits shouldn't be adversely affected by the ethanol in gas. I haven't heard of or seen any issues in club rides.

    But for hearing it from the horse's mouth, you should check out

    http://www.scootercentral.net/forums/ and

    http://www.modernbuddy.com/forum/forum14.html.

    Those forums both have a pretty active Stella community. I haven't had the opportunity to ride a Stella, but they do look nice. If I had one, I would have to try out the scented Ipone oil (http://www.scooterworks.com/2-Stroke-Oil-Ipone-Scoot-City--Strawberry-P2432C429.aspx) just for fun.
    #12
  13. starreem

    starreem Adventurer

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    Actually LML Stellas are notorious for cheap/bad short-lived rubber bits. Not sure if that follows through to the internal seals and such.
    #13
  14. Birdmove

    Birdmove Long timer

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    With the ethanol fuel you simply can't trust fuel stabilizer like you could with non-ethanol. The answer is to either ride your scooter a lot so the tank gets refrehed with clean gas often, or, if you have to store it for long (and the mixed gas/ethanol goes bad much quicker than straight gasoline does), get that ethanol/gas mix out of your tank and carb completely.
    I learned this the hard way on my Kymco and a Craftsman riding lawn mower.
    #14
  15. hugemoth

    hugemoth Long timer

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    IMO the best thing for storing any engine for the season is 100LL avgas from your local airport. It has lead so you can't use it in anything with a catalytic converter but it'll set for a year or more and not cause any problems by evaporating from the carb. It also won't loose octane like car gas does when it sets.
    #15
  16. B02S4

    B02S4 Aye

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    I've had no problems with Shell 89 (mid-grade) + Seafoam in my PGO (Genuine) Rattler 107...
    #16