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Below is a modified version of the 00'-03' XR50/70 wiring schematic, giving you a basic idea of what wires go where. The Chinese engine wire colors should be similar.

HERE'S one...

Honestly, you might be better off going with a new one of THESE

Check your engine case breather hose and make sure it isn't kinked or clogged, pressurizing the cases and possibly pushing the engine oil into the cylinder and/or head and out the exhaust valve.

looks like pieces of the steering neck are broken off and missing. Clicking on the pics to open and/or enlarge them didn't work for me, to get a better look.

I would degrease and clean the entire engine, let it dry after a mild rinse, and then start it to see exactly where it is leaking oil, and go from there.

cam chain tensioner bolt and associated parts. Made up of parts # 6,7,8,13, and 15 in the Honda diagram shown below. It will leak oil if the crush washer is worn, distorted, or missing. From the looks of your pic above, that isn't the only place leaking oil...

If you highlight the OP's username with the cursor, you'll see that he hasn't been one here since he posted this ad...6+ years ago.

Did you miss THIS in one of your other threads?

How about using some of these spacers between the engine and frame with longer engine mounting bolts?

Dd you happen to give the .003"-.004" settings a try on your engine?

No... I try to check them every 20 hours or so...

Suit yourself, I've been using .003" and .004" for the last 20+ years on both Honda and Chinese engine builds with no issues.

No...

Yep...

Try .003" intake and .004" exhaust

What exactly happens (if anything) when you push the starter button on the handlebars? If nothing happens, it could be the switch or a low battery. If the starter solenoid clicks when you push the button, it could be a bad solenoid or a low battery.

What is the exact problem with the bike? Since the starter turns the engine over, it isn't the starter. You never explained what was wrong with the bike to begin with.

I'm talking about the starter solenoid, or starter relay, not the starter itself. typically, it looks like the one pictured below. The Red (+) battery wire goes to one of the poles, and the other red wire goes to the starter itself. Touching the screwdriver blade to the two poles will make the...