Break In What fuel ratio should I use?

[DAMIEN1307]

if you know everything you sure wouldn't be on here asking how to do things.

I was on here to give advise but people like you already know the deal but yet ask the most questions lmao you have a good day

I can only say that I do NOT know everything as I am not God in the flesh but a mere old man, but also you will see I am not "on here asking how to do things", or "but yet ask the most questions" I am here helping others out as as well as serving as a moderator of this forum.

I rarely need to ask questions on how to build, maintain or run these things.

 

[DAMIEN1307]

These are my 3 bikes and the whizzer and the black one I've had for 15 years on same motors

Nice bikes

 

[Mike Cyanide]

These are my 3 bikes and the whizzer and the black one I've had for 15 years on same motors

That's somewhat impressive but do you ride everyday and ride hard 90% of the time? 32:1 from day one can work in some motors but I can tell you first hand that others will burn up fast not to mention seating your rings properly.. sure 32:1 in an mx bike Day one on but these Chinesium motors need to be brought to life carefully and in various ways.

 

[Mike Cyanide]

I know that there are already lots of threads on this forum about this, but none of them are consistent. I see some people saying stick to the recommended 16:1 for break in, some saying use 20:1, some saying 24:1, some saying use 30:1, even some saying use 32:1 or 40:1. Then I have people saying use normal oil with only so much ratio and some people saying use synthetic oil. Im absolutely confused. I already ran my first engine and it runs rough with 16:1. I have already fouled 3 plugs in less than a month. I just need some help with what I should use. I have a new engine with 100ccs coming in a couple of days and I want to properly break this one in using the knowledge that I have gotten from the 80cc. I'm leaning towards just doing a 40:1(synthetic) with break in and after break in as that's what a lot of people are saying to do.

DONT DO THAT!!! IDIOTS DO THAT! rings need to seat so on a regular China girl go about 25:1 conventional for 2 tanks then switch to 32:1 synth. I've built and blow alot of motors. I can honestly say that your last one may have had issues outside of just your ratio . Watch these vids from actual pros. If you question them watch more vids lol we are but peons compared to these MB juggernauts. This advice is direct from these sources.
View: https://youtu.be/4pwcEC6AE68?si=m-sTGY2-U9HkpM3X
View: https://youtu.be/S0xbsuR5QiU?si=KptdtQcDuMA430kJ

 

[Mike Cyanide]

40:1 if it is an aluminum cylinder and 32:1 if it is iron bore. I use Lucas semi synthetic 2 stroke oil but that's completely up to the person's taste. Hope this helps...

That's straight the most god awful oil there is. No offense but that stuff not only gave me poor perfomance but cylinders with more carbon than a sad 6 0 ford diesel. Lol not to mention ridiculous advice. He stated a problem also that I wouldn't imagine has much to do with that. A heavy mix will make you lean. He had fouling issues indicating otherwise. Sounds like a carb tuning issue

 

[Mike Cyanide]

I know that there are already lots of threads on this forum about this, but none of them are consistent. I see some people saying stick to the recommended 16:1 for break in, some saying use 20:1, some saying 24:1, some saying use 30:1, even some saying use 32:1 or 40:1. Then I have people saying use normal oil with only so much ratio and some people saying use synthetic oil. Im absolutely confused. I already ran my first engine and it runs rough with 16:1. I have already fouled 3 plugs in less than a month. I just need some help with what I should use. I have a new engine with 100ccs coming in a couple of days and I want to properly break this one in using the knowledge that I have gotten from the 80cc. I'm leaning towards just doing a 40:1(synthetic) with break in and after break in as that's what a lot of people are saying to do.

Sounds like you had a carb tuning issue. I run all of my performance bikes a 25:1. More oil typically makes you lean. It sounds like you where rich. The important question is why? Elevation will make rich conditions. So will ex excessive heat. By rough I assume you mean 4 stroking it's brains out. Could be you got a carb with a larger jet. Has happened to me or maybe you live a way above see level. Either way I'd bet you were rich and your mix not being the problem.

 

[Wrench]

I love oil/fuel threads

 

[Deleted member 9837]

I just bought a 100cc off of eBay. https://www.ebay.com/itm/325880106218

Some confusing information with that engine:
Lubrication Oil: 2-stroke petrol engine (Or oil for 10W/40.10W/30)
Mixing Ratio of Fuel and engine Oil:16:1 for new sets, 20: 1 after running 500km
Type of Sparking Plug:Z4C 14MM
Volume of oil Consumption:3L/100km

3 liter of oil per 100km!!!!!? So if you are running 20:1 mixture you are using 60 liters of gas per 100km. I think that's a liter per mile. about 4 mpg?
Thirsty little devil!

 

[Mike Cyanide]

Some confusing information with that engine:
Lubrication Oil: 2-stroke petrol engine (Or oil for 10W/40.10W/30)
Mixing Ratio of Fuel and engine Oil:16:1 for new sets, 20: 1 after running 500km
Type of Sparking Plug:Z4C 14MM
Volume of oil Consumption:3L/100km

3 liter of oil per 100km!!!!!? So if you are running 20:1 mixture you are using 60 liters of gas per 100km. I think that's a liter per mile. about 4 mpg?
Thirsty little devil!

Wtf?! No I don't eve know where to start here! I ride a bike constantly that can easily do north of 60mph and it's mileage is like 90mph. It's on the fuel hog side. A stock 100cc kit will be better than that.

 

[Mike Cyanide]

Some confusing information with that engine:
Lubrication Oil: 2-stroke petrol engine (Or oil for 10W/40.10W/30)
Mixing Ratio of Fuel and engine Oil:16:1 for new sets, 20: 1 after running 500km
Type of Sparking Plug:Z4C 14MM
Volume of oil Consumption:3L/100km

3 liter of oil per 100km!!!!!? So if you are running 20:1 mixture you are using 60 liters of gas per 100km. I think that's a liter per mile. about 4 mpg?
Thirsty little devil!

Here what you do. Break in- 20:1 conventional 2t oil. 6.4oz to 1gal. Regular use 32:1 synthetic 2t oil. 4oz to 1 gal. DO NOT USE 4t OIL! EVER! unless it's life or death just walk to get real oil. There ya go spelled it all out for ya. Lol