Dfmoto 200cc [scooter] strange idle hard start hot  By  alex1137 (Read 1,714 times)

I tested compression with gauge this morning and it was 125. Battery was week so gonna try it again once it charges.

Hello guys. i was finely able to start working on the bike again. so here is were i am with it. I have set the valves to stock setting witch was 003 intake and 005 for exhaust. went to start it up and it wouldn't start easy had to give it gass to get it going. when i took it for a ride got it good and warm shut it down and came back about 5 minutes try to start wouldn't start with out cracking the throttle a little. It also idles the same like when i start it up it will idle low abt 1000RPM way below were i have it set witch is 1500RPM. I figure the mixture is off cause with in a few seconds the idle will try to rise up to near 1500. Once good and hot it will idle 1500RPM just fine. I did take a new choke and put on it and no change in the way it starts or idles. So that being said i read online again and a lot of people say valves are to tight and so i went back and set them to 004 intake and 006 exhaust and still no change in idle or starting.

So i dont think its a valve lash problem. I changed the coil and cdi with a spare performance cdi and coil that i had laying around i put that on and no change. So i dont know what else to check other then pick up coil,stator and rectifier. the battery charges but idk how well seems to have a strong charge. i do notice my head lights flickering when i start to rev up not so much at idle but as engine speed increases they tend to flicker no bad but noticeable.

So if any of you good people know were i should go from this stand point please let me know. i dont have a car i use that bike to get to work every day. i keep the oil changed got to fuel filters on it lol and a eclectic fuel pump the old vacuum pump stop supplying gass once it got cold i had to manually suck the gass to the carb to get it started then it would pump just fine but i go rid of that old pump.

The odometer says 8,000 miles not sure if thats right or not cause the odometer dosnt read the speed correctly. If any of you are wandering yes this bike ran wonderful the first couple of month that i had it then the idle problem started put put put put at idle then hard starting. I then took the carb off cleaned it and it ran better but started again put put put so i cleaned the carb again it ran fine for a bit then started again so the next thing i did was look online and people say hey idle mixture screw and so i had to drill out the plug to get to the idle mixture. I followed all the adjustment steps but it just didnt help. I want to take it to the shop but i want that to be my last choice. The same carb cost $60 from the warehouse.