Fuel Issue with 49 cc GY6

[kram6319]

I changed out the spark plug today and what a difference!! it runs much better. I changed my original spark plug that was in my scooter it was an NGK that came out and a new NGK that went back in. The one that came out kind of looked cocoa brown. I had a small issue the new spark plug fell in the housing. ( oh well ) But we got it out and got it all done.

Also, I noticed a HUGE difference on how the scooter starts and responds to the throttle now since I changed the plug. The scooter starts within a second when you use the electric start whereas before it would be a few seconds before it started.

Also when you give it throttle it really scoots along. I took it on a 20-mile ride tonight and it rode extremely well. And easily climbed to 42 MPH although, I didn't go that fast long I am careful not to go all out with the throttle and I don't go full out throttle for miles. I accelerate and move along at a steady pace I don't abuse the scooter. I also don't baby it either.

My scooter had 800 miles when I changed out the spark plug. Also, it that coco brown look at the end normal wear ? or a carb that needs adjusting??

also, I stopped for fuel ( took a chance) as I have had the issue where it was hard to restart but tonight it started right up instantly! Could the spark plug have been the issue?
It usually started well but instead of taking a few tries especially when its cold or sat overnight, It now starts 1st try and much quicker.

It runs now like it did when it was new