Hi,

Is anyone else running biodiesel in a small 2 stroke engine ? 

What blend ?

Thanks, Steve

Testing using 30% biodiesel,  70% methanol.

A little smoke. It has been running 2 hours. How long will it run ?

In a gasoline engine? 

Hi old300D,

Yes,  I  might have to shut it down tonight.  it is loud !    I am going to try 20/80 when it runs out and see if I can get it not to smoke at all.

Thanks, Steve

 Yeah, tell us more. I'm interested.

Hi Natescape,  That is a 2 stroke blower that I pulled out of the trash !

The carb bolts were loose and it would not start. Now it is on the web ! :)

I read an old thread on this forum that was talking about using biodiesel in a 2 stroke.

http://www.biodieselnow.com/forums/t/3568.aspx?PageIndex=1

2 stroke biodiesel tests underway !  :)

Thanks, Steve

Way less smoke with 20/80.  Almost no smoke.  Engine is running very smooth and cool.  I will shut it down tonight and start it up in the morning and run it all day !

If this works then I will be able to run biodiesel in my 2 stroke bicycle motor !  :)

stephend:

Way less smoke with 20/80.  Almost no smoke.  Engine is running very smooth and cool.  I will shut it down tonight and start it up in the morning and run it all day !

If this works then I will be able to run biodiesel in my 2 stroke bicycle motor !  :)

Steve

Why 80% methanol, is that not just making the fuel a whole lot more expensive than if you used normal pump gasoline?

 

Hi Fuzznag,

My 2 stroke bicycle gets up to 100 MPG and I don't drive it that much. :)  

You have to mix oil with the gas anyway. I am hoping the biodiesel will replace the oil without problems.

The bicycle engine has a compression ratio of about 6 to 1.

Methanol , high octane racing gas , mixed with high flashpoint high cetane biodiesel. That is the blend I am using.  Too much biodiesel and it smokes.

methanol $2.75  gas  $3.?? and rising !

I have plenty of methanol right now so I am testing with that.

If this works E-85 blended with biodiesel tests next ! 

 Thanks, Steve

P.S.  I like the smell ! :)

My son just suggested putting the blower on the back of the bicycle !  :) :) :)

 I'm thinking biodiesel/methanol pollutes a bit less than gasoline mixed with 2 stroke oil.  Way to go.

stephend:

Hi Fuzznag,

My 2 stroke bicycle gets up to 100 MPG

 

Is it one of those add on engines? If so, which brand?

If you run across an old Lohmann bicycle engine(semi-diesel & all fuel), please let me know. There was also a similar Danish built one,  30s-50s, but the name of it escapes me now.

With properly defining the problem, open minds & a little work the liq fuel situation will get solved.  

Nice low dollar testing.

Martin 

Thanks,  I  ran the blower for 8 hours .  It only stopped to refuel.    After 4 hours I went to 10% biodiesel and 90% methanol.

I checked the spark plug and it was a little gray.   That means it is running lean. 

The next tests will be with an ethanol blend and biodiesel.

I don't suggest using methanol because some of it comes out unburned in a 2 stroke.  I think ethanol is better.

Thanks, Steve

Hi  perotter,

It is a pico wingdinger ? made in China , bought on eBay. :)

I have never even heard of a Lohmann bicycle engine.  I have now !

http://www.dieselbike.net/oldproduction.htm

Cool website !  :)  http://www.dieselbike.net/

micro diesel engine test   http://www.youtube.com/watch?v=r3-VLNjwIsg

Thanks, Steve

stephend:

methanol $2.75/gallon 

Where and how are you getting methanol for $2.75 per gallon?

Hi   Voltaire ,

Here ,

http://tampa.craigslist.org/for/584703286.html

 Thanks, Steve

stephend:

Hi   Voltaire ,

Here ,

http://tampa.craigslist.org/for/584703286.html

 Thanks, Steve

Wow, that's almost $1.00 per gallon cheaper than methanol from my local drag strip, the cheapest around.  We are sitting at $3.64 right now.

Hi old300D,

Ouch !   I hope the truck place selling it doesn't find that out !

They have a tanker in back and when it is empty I guess $3.?? is what I will be paying.

It is good methanol for making biodiesel. 

Diesel is going for over 4 dollars a gallon at some places.

Thanks, Steve

Chris with the 2 stroke test machine. 

Is it really possible to use it in a gas engine? now that different,anyway saw aelectric powered sports bike at Autopartswarehouse , now that different.