Oil/gas mix?

[Red]

I am about to run my motor for the first time and figured I'd ask yall how should I mix oil and gas till broken in

[pd]

I'd mix the same as you plan on always running it .

I've never ran a higher oil count at start up .
I don't think I've ever seen a two stroke anything that had a different mix for break in recommended .

I just did a quick Google and found that some of the Chinese scooter makes say to double break in oil .
I'm not sure I would , but ...
Then I found this article :
http://www.everything2stroke.com/content/30-2-stroke-Engine-Break-in-and-what-you-need-to-know

Pete .

[Red]

Good write up,Thanks

[Mike Sal]

Hmmm. the article recommended 32/1 mix ratio.  Bob Kerr says these motors like as much oil as they can stand.  The mix I have in the bike now is 16/1 but I think it smokes a little more than I'd like.

Anyone else running 32/1 & if so, have you had any issues?
Mike sal

[oil-lamp]

I forget where this topic thread is it may be on that long winded topic that pd started. It was stated you could use a 40:1 up to 50:1 mix with no harm. Me myself I try running 40:1 but I have low compression and need a rebuild. 

[Ricks]

I run mine at 50-1 with Echo brand 2 stroke oil.  Same mix I use in my string trimmer and blower.

[Mike Sal]

My 2 stroke experiences started with outboard motors from the 50's & old motorcycles from the 60's.  I ran 40:1 in every 2 stroke motor I ever had & never had fouling problems.....But, they were always oversquare motors (bore larger than the stroke). 

With the Simplex, you've got a combination of undersquare design (stroke longer than bore) as well as barely adequate cooling fins.  This makes me cringe about the idea of a 50:1 ratio.  I do like to hear that you guys have been able to get away with the leaner mixes though.  I'd rather fuss with a fouled plug once in a while vs a siezed piston.

I think I'll go to 32:1 to see how much smoke it generates.
Mike Sal

[pd]

I might bring up the fact that today's oils are more refined than oils of 40+ years ago . They also likely have additives that were not available then .

[admin]

I might bring up the fact that today's oils are more refined than oils of 40+ years ago . They also likely have additives that were not available then .

That is my feeling exactly.  Simplex didn't have available what we have.  All the 2 strokes now run much less oil nowadays.  I ran some at 20-1 and all I got was more smoke!