Modern fuel requirements for antique E50 engines.

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Modern fuel requirements for antique E50 engines.

Postby RebelRider.Mike » Fri Aug 09, 2013 7:08 am

I've heard that lead additive is unnecessary for an E50.
I've also heard that modern gasoline and 2-stroke oil allows for a leaner Gas/oil mix.
Anyone have thoughts about this?

Also, running a rich fuel/air mixture can foul the spark plug. But I've also heard that a fouled plug could also mean too much oil in the mixture. Is there a way to tell the difference?
Mike

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re: Modern fuel requirements for antique E50 engines.

Postby John » Fri Aug 09, 2013 8:18 am

40:1 synthetic 2T oil with just reg alcool 10/15% is OK. No additives required. ATF in trans
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re: Modern fuel requirements for antique E50 engines.

Postby RebelRider.Mike » Sat Aug 10, 2013 3:34 am

Thanks,

I'm using 40:1 now. So an oily spark plug means a rich fuel/air mixture rather than a rich gasoline/oil mixture?
Mike

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re: Modern fuel requirements for antique E50 engines.

Postby John » Sat Aug 10, 2013 4:24 am

Yes, jet change maybe. Air filter on? Stock Puchs are picky.
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re: Modern fuel requirements for antique E50 engines.

Postby JunkyardDog » Tue Aug 20, 2013 10:33 pm

I'm using 10% ethanol (only thing available here) and a 40:1 mix on my ZA50. So far so good. Only thing else available is 100 octane ethanol free race gas at over $9 a gallon
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re: Modern fuel requirements for antique E50 engines.

Postby RebelRider.Mike » Wed Aug 21, 2013 2:43 am

I'm also using the regular gas with ethanol. 40:1 with some 2 stroke oil that may not be the best quality... And a little fuel stabilizer.

My plug only seems to foul if the engine doesn't start up right away. Once its been running a while, it gets the medium brown color that seems to indicate that things are going well.
Mike

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