Ignore the smoke. It doesn't mean anything.

No, it wasn't dieseling. Ethanol needs a hot plug, try an OS F or Enya #3. If that fails you may need to increase compression ratio, I've not tried that yet. Chances are E85 will run hotter, it offers much less cooling through evaporation. I've not bothered to compare actual engine temperatures.

Yes, you have to use a gasoline compatible fuel system.

It sounds like you need to finish breaking that engine in.

E85 is mostly alcohol. You must use alcohol blending lubricants. Anything OK for methanol should be fine. Nothing in the main stream market for gasoline will blend with alcohol. There are a handful that blend in both. Kltoz Original Techniplate is one.

Greg

Just bought a smaller prop,
dropping from a 10-6 to a 10-5, and going from MAS to APC should lighten the load a bit too.
I can also 'borrow' the plug from my 4stroke Mag52
Will try combinations of those in addition to raising the castor to 20% this weekend,
and report the results

I've been playing with four strokes on gas and they do not smoke like they do on glow fuel

That's the way mine are Jim, no smoke at all unless they idle for a while and then only just a puff when you hit the throttle.

My Saito FG engines give a puff of smut when you quickly open the throttle after idling for a bit but no smoke like on glow fuel.

My Saito 150 is actually not any different than thw FG -20's in the way it runs.

You must be able to identify mixture setting by sound.

O-Boy,you have got to be kidding.
BCCHI

I met a guy that runs a big Supertiger 2000on E85. I could not believe how good it ran. Just use a 4 cycle OS Max "F" Glow plug & 17-18 & oil that mixes good ...like Klotz. I got his phone number even! Capt,n

I recently converted a Saito GK220 to gas, simply because it was too thirsty as glow. Have a look on youtube.

http://www.youtube.com/watch?v=Wkkr_2KLiH8.

It was easier than I thought, and the result was pretty good.

Starfighter,

I am intriqued as you mentioned converting a BGX to gas. I have one and the project I am looking to use it in is a 22 lb scale model and the problem i am having is getting the tanks low enough as to not siphon.
CAn you positoin the tanks anywhere with a gas conversion?
What is needed to convert? Sounds interesting

Thanks
mike

Is very succesul Only use a walbro

THE BGX WAS THE FIRST ENGINE I CONVERT 2 YEARS AGO, I WAS SURPRISED ABOUT THE SUCCESFULL,
THE OTHER PIC IS A SUPERTIGRE 35CC STE

BOTH ENGINES ARE VERY POWERFULL MORE THAN A COMERCIAL 40CC GAS

i THINK THE ST 4500 WILL BE MORE POWERFULL THAN ANY 55 CC

I have a ST4500 converted to gas. It has the Pro Spark ignition system using a 1/4-32 spark plug. I had needle bearings put on the con rod as well. Plan on converting my BGX-1 as well. Hey Max, how much do you charge?

I fit the wabro support, walbo mnimagnet and hall sensor no need con rod bearings, I ported it. is very powerful more power full than my zdz 40cc

u can instead use a walbro use regulator and is nice

Regards

Wey Max I want to convert a 120ax to gas and NOT put rollers in the con rod. What oil ratio are you using on your BGX?

Not a reply....just looking for Ken Lambert who does real nice Supertiger conversions. I need his phone number....people are asking for his phonenumber. I pray that he is ok and doing well. Thanks Capt,n

Don't have a phone number. Website is www.lambertsrc.com.

AV8TOR

So, how were the results?