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skrymir69 · April 19th, 2014, 08:08 PM

Hi, sorry to have to use my first post to ask for help, but it seems like if i can get help anywhere on the net, it is here.

Ok. So I have a 2003 EX 250R that I picked up for cheap because the tank and carbs were gummed up.
I cleaned the tank and pulled and cleaned the carbs.
The bike starts up and rides awesome for about 10 minutes. After the temp climbs to about 1/4 of the way, the engine starts to get rough, and it will die. After this happens, it wont start up until the next day.

So far I have checked that the battery. 13.5 volts running, 11.5 cranking over. 12.7 in on position.

Petcock is working correctly. Only supplies fuel when there is vacuum.

After it died on me last time I pulled one of the drains from the carb and the bowl had fuel. Also I ran it with the gas cap open and it still does the same thing.

Only thing I still have to check for is spark, but I am not sure that could be the problem with it running so well up till it dies.

Any Ideas?

April 19th, 2014, 08:08 PM	#1
skrymir69 ninjette.org member Name: Scott Location: Sacramento, CA Join Date: Apr 2014 Motorcycle(s): 2003 Ninja 250R Posts: 13	Won't stay running after warming up Hi, sorry to have to use my first post to ask for help, but it seems like if i can get help anywhere on the net, it is here. Ok. So I have a 2003 EX 250R that I picked up for cheap because the tank and carbs were gummed up. I cleaned the tank and pulled and cleaned the carbs. The bike starts up and rides awesome for about 10 minutes. After the temp climbs to about 1/4 of the way, the engine starts to get rough, and it will die. After this happens, it wont start up until the next day. So far I have checked that the battery. 13.5 volts running, 11.5 cranking over. 12.7 in on position. Petcock is working correctly. Only supplies fuel when there is vacuum. After it died on me last time I pulled one of the drains from the carb and the bowl had fuel. Also I ran it with the gas cap open and it still does the same thing. Only thing I still have to check for is spark, but I am not sure that could be the problem with it running so well up till it dies. Any Ideas?