premix for kit break in

þλ†Я¡¢k §¡§ΩИ /

What premix should i use to break in a kit? for how long does that need to be? and then what should i switch back to?

Im bad with math so 50:1 means nothing to me..what does that mean?

Re: premix for kit break in

Raymond Wright IV /

50 units of gas to 1 unit of oil.

Re: premix for kit break in

þλ†Я¡¢k §¡§ΩИ /

well yah i know that..but what does say,

1gal - 6oz translate to?

Re: premix for kit break in

http://www.dansmc.com/2stroke_oil.htm

scroll down for a handy chart.

Re: premix for kit break in

þλ†Я¡¢k §¡§ΩИ /

sweet. thanks dood. i learned something today. graphs are awesome.

Re: premix for kit break in

Cleats Onionpockets /

Jon, I'm assuming you meant to also put in "ignore the rantings of that coot, 50:1 is fine"?

Re: premix for kit break in

i've heard 32:1 for break in. some people even go 16/24:1 for the first little bit.

i'd like to know people's thoughts on conventional vs. synthetic vs. conventional/synthetic blend oil for break it.

Re: premix for kit break in

I'm using roughly 35:1 with conventional oil for break in. plan on doing so for around 2 tanks/200 miles. There's a million different ways people say to break in a kit so I just chose what sounded reasonable to me.

Re: premix for kit break in

the guy i learned from said breaking in changed 3 times during 2 years of being a air craft mechanic and they all said don't run it at full till its broken in with all the starting procedures ranging from let it idle for 4 hours to fly at 70% for 4 hours to take it through all the revving stages except 85% and above

Re: premix for kit break in

I work on aircraft for the navy. To break in the motors we work on we run em at idle for 10 minutes shut em down check the gas path and fire it up take it to high powers and knock out 2 or 3 checks that require full throttle. On my old 76 chevy c10 its alot longer of a processes. There are as many ways to break in a motor as their are people building motors. Only constants I've found are don't use synthetics till after the break in period go easy on the motor for the break in period and after you think she's all run in check everything change your fluids and remember what you spent on it before you start romping on it.

Re: premix for kit break in

some people even go 16/24:1 for the first little bit.

Don't you think three parts oil to two parts gas is a little excessive?

Personally, if your going to be breaking in a very high powered moped motor, why even risk the first 50 miles to any sort of lean condition? 25:1, even for synthetic, seems very logical (thats about 5oz of oil to a gallon of petro). If you plan on mashing the shit out of your fancy, quick motor, why run less then 32:1? You never know when you might be leaning out your motor going full throttle for a long duration of time and the extra money you spent for the oil is a lot less then another kit.

Also, run the same oil you plan on running for the duration of the life of the motor during break in. It makes no sense to run standard oil during break in and then switching to synthetic after a couple hundred miles.

Re: premix for kit break in

32:1 at the least and jet rich. 2 jets richer. you want lots of fuel to lube and cool things.

Re: premix for kit break in

why do people think it's necessary to use the same oil for the entire life of the engine? It's really not. NO experienced person has recommended that I use synthetic for break in, regardless of the fact that I plan on using synthetic eventually.

Re: premix for kit break in

Vinny, who has recommended against it and what were the reasons?

Re: premix for kit break in

On the Topic of Break In lubrication.

Im doing a 60CC top end conversion on my QT50 next week. My bike has an oil pump that works great.

My question is do I need to add a little oil to the gas to pre-premix, just during break in. Or would the standard oil pump do fine for the break in?

Re: premix for kit break in

32:1 if u run kits just to be safe the power u would get from 50:1 is insignifigent.

synth is better for hard running conditions just to be on the safe side, ie 15-20 mins wot on a kitted ped that rpms at 9,000 or higher

premix for kit break in

This reminds me of growing up. I had a 100yamaha enduro that I took the

injection pump off. I mixed 32/1 for around town, it smoked pretty good so you had to run some r's to keep it from loading up the plug, but it was OK. Then one day I had to take the highway home from work in the rain, so when I got up to highway speed for about 2 exits, the friggen thing seized on me in the rain. I slid down and hit the shoulder of the road doing 60mph, but I it was a fun ride sliding at 60 in wet grass. i got up , and by that time I just went over to the bike and it fired right up. Well for the next couple years the same thing happened if I rode at high speed for too long, but if I mixed more oil in it , it would smoke so bad and foul plugs left and right. i decided to just put the pump back on, and that fixed everything. I guess having the oil metered for throttle position, and crank rpms makes a difference on some engines. It's hard to say whats right for any engine, but it's better to have the oil mixture higher than going threw what I did on that motorcycle. The funny thing is, when I pulled the cylinder off to see what damage I was doing, it all looked great, which leads me to believe it was more of a piston to cylinder clearance issue, because I did have the cylinder bored with an oversized piston in it, may be the shop that bored it should of left me more clearance.

Re: premix for kit break in

About 2.8oz to a gallon.

« Go to Topics — end of thread

Want to post in this forum? We'd love to have you join the discussion, but first:

Login or Create Account