Hey everyone! I am currently breaking in my 2 stroke Grubee with a 16-1 fuel mix with synthetic oil. I didn't think twice about following the kit included instructions when it said to break in the engine with 16-1, but with all the reading I have been doing on fuel mixtures, its getting me worried! I don't want to be hurting the engine right as I am breaking it in so my question is, should I just finish this one tank of 16-1 and immediately go to a richer mix or should I gradually work my way up (16-1 to 24-1 to 32-1)? I want to make the engine last (obviously) and want to find the optimal fuel mix for long life. After a few gallons of a lean mix to break in the engine (maybe between 24-1 and 32-1) what sort of rich fuel mix should I stick with after break in to keep my bike running smooth and keep the sparkplug running fine etc.?
as a noob myself i wrestled with this very same question just a few months ago and in my own case i was fortunate in that i was having a bike built for me so i had a solid month to do research before actually taking possession of the bike.
...in my research during that time i found
this old but still active thread discussing the synthetic oil
Opti2 and it's a long discussion so making myself read the whole thing wasn't easy.
anyway, after reading that thread and many others i decided to go the
Opti2 route and so the only time my bike has run any fuel other than the 100:1
Opti2 is on the first fire up at
Pirate Cycles and for maybe 2 miles, after that the tank was drained and the 100:1 mix is the only fuel i've used since.
...the bike now has just over 350 miles on it at 100:1 and i've recently noticed a nice improvement in performance as she has fully broken in but even from day one she ran like a scalded cat, WAY better than i had expected. ...i opened her up yesterday and maxed out at 39.52mph which was scary actually, lol, but she cruises at 25 - 30 mph with ease now, before the break-in performance improvement she ran best between 20 - 25.
...anyway, i love the stuff, my bike runs like a champ and i like not trailing a cloud of oily smoke behind me.
, bozo