Your CEL will always be on if the ignition is on but the engine is not running. I'm sorry if this seems like a stupid question, but is your side stand up when you put it in first? When you try to start it is the side stand up or is the bike in neutral? Those are the only two ways the bike will start. Also, if it is in gear I believe you have to have the clutch disengaged(lever pulled) to start.Hey man I literally just picked my 125 up 2 days ago. Yesterday after I got off I wanted to take it for first ride, wheeled it out started it up np ,let it run for 2-4 min to warm up. Got on the thing put it in first and it stalled. Went to crank it again no go CEL was on. Let it sit for 15 min tried it again fired up rode it for solid 20 min then put her away. Wanted to cruise around again tonight did the same exact thing now when you try to turn it over the bike doesn't seem like it's trying to gut CEL is on I literally don't even have 20 miles on it
1, start engineMy check engine light just went away... I did nothing.