is 40:1 ok after break in?

is 40:1 ok after break in?

Not sure, i have a 2009 HT engine and the manual says 40:1 after break-in. Tho i havent run that engine yet. I usually run 25:1 tho next tank i will be experimenting with 32:1

Wow,
40:1 sounds iffy to me. I never recommend going over 32:1 after break-in and 16:1 during. Just my opinion, but, I've also heard the new, 09, motors are a bit different than the earlier ones in some respects so maybe the 40:1 is what they require. Still sounds dangerous to me. A little too much oil is always better than not enough. We'll have to see what the jury says on this one.
Tom

__________________
Age and Treachery Will Always Triumph
Over Youth and Skill

At the very least use a good quality synthetic oil if you go with that mix. 30:1 would probably be safer! The motor depends on that oil for lubrication.

__________________
If it can't be broken I'll find a way!

-and-

I'm not lost, I'm exploring!

With Amsoil Saber, sure. It's designed for 50:1 with motors like these. Most other oils, that might be pushing it a bit in the heat, on hills with a heavy rider going WFO.

__________________
http://oilslubesfilters.com/ AND NOW http://www.sickbikeparts.com/

no,do not use 40:1
what are you trying to save a few cents on oil,
hope you carry a extra $100 engine with you.

AH......NO! I'm just trying to run the engine as clean as possible.I'm not the type to run it wide open all the time.It would be nice if the motor would open up and I wouldn't smell like a weedeater machanic everytime I ride.

first of all, in the ratio 40:1, the 40 part refers to the GAS, not the oil, so a 40:1 mix has more oil than a 50:1....I run about 60:1 (less oil) with 91 octane and synthetic oil...my buddy has a racer that he runs at 100:1, but this is for short track racing and not for distance. I ran a 50:1 mix for the first 300 miles and my spark plug was blackened, since I thinned out the mixture, it has more throttle response and less incomplete burning....a 30 or 40 to 1 mixture will have oil dripping out your exhaust.

25:1 Full Synthetic Is What I Run. All Depends. Run 40:1, See What Happens And Keep Us Posted, The Motors A Cheap You Could Just Get A New One. I Plan On Beating The Crap Out Of Mine In Due Time. Fire It Up And Beat It Down.

Boy ya'll really no how to confuse a fella! 32:1.....40:1..............50:1 ............100:1