Kids china 4 wheelers anyone with knowledge?

[Mpolly500]

I just picked up 2 used china 4 wheelers for my kids. I have one running but it will only idle. I've cleaned the carb an I mean cleaned cleaned it. It fires right up. Give it has just sounds different doesn't die doesn't go faster. Choke has no effect The other just won't spark. I've tried everything. I got them very cheap just want my Kids to play. I was told they had remote shut offs but they were lost. Idk if they are in limp mode or something? Any help guys?

[smallengineguy]

I've had to bypass the kill switch on 2 of those I've worked on. Maybe try bypassing that first?

[Mpolly500]

Ok I figured them out. One was in "safety mode " like a rev limit. The other was a bad cdi box. Ordered a new one was only .69 cents. The one running now is a 110 cc an it's got way more power than I thought it would.

[smallengineguy]

That was the typical motor for all the Chinese brands- 110cc. Glad you got it figured out.

[Mpolly500]

Thanks. Your reply didn't show when I updated about them. The kill switch was one of the first things I checked. Yeah 110 is about normal on them. The other one I got is a 70 cc.