1. 6

    66cc Engine Pics after 250 Miles on Synthetic & MMO

    Hi everybody. I received the new piston, wristpin clips, and jug in the mail after a wristpin clip ear broke and damaged the piston, rings, and jug. Bike currently runs very well (again), and will pull 33MPH on level ground at about 1/2 throttle and 175 self with backpack. I use 91 octane...
  2. C

    best 2 stroke spark plug?

    Hello.I just bought a new Chinagirl 2 stroke 80cc(actually a 66 cc) and i read that the spark plugs are a problem. I will buy the best oil to mix with the fuel...so 32:1 for break in and 40:1 after break in ratios are good?I want it to be very reliable since i will ride it like 130 km a day.i...
  3. Sitherus

    Should I replace my piston?

    I have a new piston head and rings. Should I replace this, Or just clean it? This is from running rich right?
  4. Sitherus

    over posted oil question with a twist

    have I been mixing my gas wrong the whole time? I just read that its 16:1 for break in and 32:1 after, the manual states its 16 parts gas to 1 part oil, but i always thought it was 16 parts oil to 1 gallon of gas I just started to break in a new build and im running 32:1 because I thought that...
  5. A

    Recommand oil for stock zeda80

    On the user manual it says "valvoline two stroke racing oil is recommanded" or use "two stroke oil" as alternative. However, I can not find them online. Does that means any fully Synthetic 2-Cycle/Stroke Oil are fine? Do you guys have any recommand oil for my engine? Thank you!
  6. B

    Maintenance questions, and air leak?

    Hey guys, first post so excuse me if this is in the wrong section. I'd say this engine has around 1000 or so km on it, and since day one I've had fuel/oil dripping onto the engine, not sure if it is from the spark plug, exhaust or crank case but I have made sure all is tight. The bike goes great...
  7. B

    best oil for a 4 stroke

    I have a huasheng 4 stroke and I'm trying to figure out what oil to use can someone help me out here
  8. Cooters Carport

    What is the fuel oil ratio to run E85 in my 2 Stroke motor

    I was wondering what the fuel oil ratio to run E85 in my 2 Stroke bike engine.
  9. C

    What is the fuel oil ratio to run E85 in a 2 stroke bike motor?

    I want to run my bike on E85 but idk what the fuel oil ratio to run it with.
  10. Matt Barrack

    Exhaust More leaks...

    I got a leak from the exhaust. Oil is coming out of the seem on the bottom. Or the top of the part that comes off when you unbolt it.
  11. Matt Barrack

    Exhaust Oil leaks...

    I've got oil leaking from the exhaust (where the gasket is) and the cylinder head. Is this a problem?
  12. Matt Barrack

    Fuel ratio (synthetic)

    I just bought low ash 2-stroke synthetic oil and I was wondering what the break in ratio would be. Thats pretty much it. Thanks in advance. :)
  13. Matt Barrack

    Fuel Ratio

    So I bought a 2 stroke engine from a store and on the ad it said tbe break in ratio is 10:1 but everywhere else I see selling them it says break in is 16:1. Should I just go with their ratio because it's the only place I found with a different ratio.
  14. Calvin

    Question About Oil.

    Hey everyone! I am about to start my first build, and wanna treat my engine right. So, what oil do you guys use in your 2-strokes? I have heard good things about AMSoil. Do they make good oil? Also, would this be a wise option...
  15. cmb271

    Oil and fuel mixing carburetor?

    This question plays into a bigger question I've been pondering all day at work on "what would the most technologically advanced 2-stroke motorized bicycle look like". Does a carburetor currently exist that mixes the oil and gas for you and all you simply do is select the ratio you'd like to run...
  16. N

    oil put in exhaust port harmful?

    I had the exhaust off while working on my bike at a park, & I soaked some paper in 2 stroke oil & put it in the exhaust port to keep dust out. It seemed like a clever, easy way to protect my motor, but my friend warned me it would be harmful if oil got on the side of/went beneath the piston, b/c...