New to moped

[Thanh]

Hi everybody!

If anybody is around concord ca (94521) and would like to meet up, please let me know. I'm new to moped. I am less mechanically inclined so It took me 3 weeks to put a bike together. here is the picture of my moped ( https://drive.google.com/file/d/17ewAWjxXfQpdthocyZV5APAHvqtY9pZk/view?usp=sharing )

Since I have don't know much about two stroke engine, I have had challenge getting to run. I'm mixing the fuel 1:16 using 91 octane fuel as recommended by engine manufacture (the engine properly is a cheap one from china since i bought brand new it for 80 bucks on ebay).

On the first day, the bike worked; i keep the bike under 20km and less than 30 min.
Second day, it started but the engine won't stay on.
3rd day, same problem as second day but for some reason It worked after i pulled the spark plug and sprayed wd-40 in the spark lug hole and pushed the bike around for awhile without pulling in the clutch level and the spark plug.
today, same thing happened as 3rd day, I did everything that I did from the 3rd day plus removing the "bowl" to dump out all the fuel to get a fresh start because I think that there were too much fuel.

i sense that the problem is either fuel/air mixture or spark plug. Please help me solve the problem. I could record my steps and share.

Thanh

 

[Greg58]

Welcome to the forum and not a bad looking bike. Was the spark plug black? If so the 16/1 mix is too heavy, I break in a new engine at 24/1 with oil designed for air cooled engines. The spark plug makes a big difference in some, B6HS NGK is one of the best plugs for these. Gap the plug at .26-.28. And turn off the fuel when you stop for a extended period or park overnight, I turn mine off a let it idle a few seconds before hitting the kill switch.

 

[Thanh]

Welcome to the forum and not a bad looking bike. Was the spark plug black? If so the 16/1 mix is too heavy, I break in a new engine at 24/1 with oil designed for air cooled engines. The spark plug makes a big difference in some, B6HS NGK is one of the best plugs for these. Gap the plug at .26-.28. And turn off the fuel when you stop for a extended period or park overnight, I turn mine off a let it idle a few seconds before hitting the kill switch.

Thanks Gregg58, I got the bike working. A friend who knows about the engine pointed out that my CDI wires are closed to the pipe. He was right, once i move the wires every work perfect.