I would check the cables. I know, why? I have a 03 DS50 and it runs great. The only issue I have had is the left brake handle locking clip. You need to have this engaged to start it. Sometimes, it won't start or will stall when idling. If I fiddle around with the connection to the cable it will fire right up and ride fine. This doesn't happen frequently enough to be a problem but might be worth a look.
You have a lot of money into the quad now. Don't want to rub it in but I bought mine used 2 years ago for $750. It was barely ridden. Keep that in mind if it keeps acting up. Good Luck.
Check the battery cables and the battery. The ignition on a DS won't advance with a poor battery or a crappy connection. Try charging the battery and then ride it - if it better it may be your battery. Even though the battery is new it could still be bad.
Hi, I just recently bought my 06 DS 50. It appears we are having the exact same problem. Just wondering if you resolved your problem, if so what did you do? After several hours on the computer, my best guess is the auto choke has failed.
im having same problem as marti00 with my ds runs just like that battery acid dissapears i cant figure it out im thinking along thesse problems here key ignition coils cdi box regulator or stator but i dont want to replace with out knowing any help please
I have an Eton 50 with the autochoke that does something similar when it's cold, and if I don't shut the fuel off when we shut it off it floods immediately. I was going to suggest the auto choke. I'll have to look at mine. I didn't realize you could just unplug it. Maybe that's what I need to do too.