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Yes the timing chain was taken off before I got it. I kept thinking it was out of time. It idles smooth now that it's set. Could I be a tooth off and it cause problems like this? I do have a tach on the scoot. I'll take a new video and upload it when I get back home this evening. Thanks.

I took a video this morning of it running but I don't have a way to upload it. also there's not a way to adjust the car with it on the because there's no room to get to the air adjust. so I set it at two turns out and put it on and it still does the same thing.

ok im going to get up early and adjust the carb. ill get a video of it running. I took the plug out of my buddys machine and it didnt make a difference on mine. his runs perfect. does it make a difference which rotation I set the cam to? thanks for all the help.

thanks alleyoop... That is the method I used to adjust the valves. I could figure out how to do the cold/ non running version. as far as the carb. I took it off and set the air mix screw to 1 full turn out. My buddy has the same scooter and thats what his was set at. The scooter will actually start and idle kinda rough. if I attempt to give it throttle it just dies. even if I just turn the idle screw all the way up it will die. I actually havnt done a compression test yet. I may need to do that.

as far as setting the timing. I know when you turn the motor by hand the piston can be at tdc and the cam will be on the timing marks and off if you turn it a complete turn. if that makes sense. How do I know which tdc the cam needs to be set at? thanks for all the help.

I have posted this in another forum but havnt had any luck.

I have a 2008 sunl 250 scooter that I just got. Its not running. the previous owner could not get it to run so he sold it to me.

This is the honda clone engine.

I checked the timing and the timing mark on the flywheel is lined up with the piston at tdc. I took the valve cover off and the valve lobe is lined up correctly also. I can get it to idle sometimes smooth but most of the time ruff. but if I try to give it any gas it will die. also it will not idle very long if I let it set and idle. after about 30 secs it will die. I have replaced the carb with a new one. I have replaced the electric choke. I have checked the fuel pump and it works good. I am stumped at what it could be. Any help will be greatly appreciated. thanks.

ok im still having other problems with this thing. when it warm it fires right up on the first click and purrs great. but when its cold it takes for ever to start. and its very irratic with its idle. it revs up and down even dies some if I dont catch it and give it a little gas. also i noticed after i drive it a bit around when I stop and let it idle it seems to run ruff even sounds like a bit of aback fire or stutter or something. any clue what could cause this? thanks.

ok guys i have another question. What makes the solonoid go out? I replaced the solonoid on this scoot already. I have started it fine quite a few times. then i put all the panels back on the scoot and now the solonoid is out again. what gives??