Is my motor normal?

I Just finished my MB today and took it out for the first ride.

After the initial excitement of it actually moving, I was a bit dismayed at how slow it was going. I understand that these motors need to be broken in to, but the fastest speed I could go on full-throttle was a little bit under 15mph.

Is this normal? because optimally I would like to be able to go ~30mph on my 67cc DAX motor. How soon will it take before I can go at speeds I normally bike at?

UPDATE: after I left it in the garage overnight with the gas tank 1/3 full, I came back to it this morning to find it empty and a pool of gas beneath the carb, what could be the cause of this leakage?

UPdate:I think I've solved all my problems; the leakage was caused by a rip in the tube that connects the gas tank to the carb. I learned what the choke lever does and flipped it all the way open to get speeds ~26mph on flat ground.

well, I dont know how a good motor sounds so I dont have anything to compare to. What are the "ajustments" that I need to do?

Cabinfever1977 said:

I think your engine/bike needs adjusting. 25-28mph is normal speeds for breakin and after breakin 25-32mph. It also depends on your bike wheel and sprocket size and how much you weigh. It will get faster after breakin but should not be that slow during breakin.

What size is your bike wheels? smaller than 26" will be slower
what size is your rear sprocket? larger than 44t will be slower
what ratio is your oil-gas mixed at? 20:1 is good
what notch is your c-clip at on your carb slide? 2nd notch from top

also i forgot your throttle cable or the carb slide might be sticking and not allowing you to use full throttle. take off the airfilter and twist the thottle,does the slide in the carb move up and down all the way? you might need a second person to help you.

Click to expand...

My wheel is a 26"
I dont know what size the rear sprocket is, It's the one that came with the kit so I think its alright.
Oil Gas ratio is ~24:1

What Is a C-clip? I actually dont know what anything on the carb does...
When I assembled my throttle, the slide moved all the way up; I think it should still be that way..

kahnowerh said:

How's it sound/react?
I was running really rich and four stroking when I first started my engine.

You'll have to do a bit of adjusting when you first start her up.

Click to expand...

I have a feeling my engine might be "four stroking" because the sound isn't crisp at all. How would I go to test and see if this is true or fix it if it is?

I think it would help if someone could explain to me what the "choke lever" on carb did and where I would want it to be.

And, are there any simple adjustments that I could do to the carb that would help my MB go at the speeds it should? (I dont have any knowledge about what any of the parts on the carb do)

Thanks in advance.