I have 50cc quad , It has been very temperamental from day one. It takes alot of cranking over to get it running. I have good spark . Today I pulled the spark plug and shot a seringe of gas in the cylinder. Tried to start it and same senario. It will eventually crank over after 8-10 minutes. I usually have to put a charger on it after so many cranks . Not sure what to check next. Any help would be appreciated . Happy Holidays !

 

Merry Christmas! it sounds like your valves need to be adjusted for a hard starting/cranking problem. surely it's getting plenty of fuel. i'd look at the valve clearances and check compression with a gauge, not your thumb.

 

What machine is this? 2 or 4 stroke?

 

thanks for the reminder..... i promised not to answer any more 50cc questions because of the 2 stroke factor possibility. ......

 

It's a fourstroke. The brand is yangking or something like that . It was originally purchased from Alien Motorsports out of Reno, Nevada.

 

I'd clean the carb.
If that don't work, I'd do what Jaster said.

Jaster: please keep replying....Bet you ask next time.
Being a 4 stroke, you can take over.

 

yeah, first question WILL BE: 2 stroke or 4?

 

So I checked the valve clearances and still same issues. When I pulled the exhaust valve cover (cap) , there was a considerable amount of oil and gas mixture inside. Is that normal or ring problems ?

 

Also check your air filter, and spark arrester in exhaust to make sure they are clean.