Greenwood10
New member
Can anyone help? I have a 04 mc250 that appears to have an electrical fault, tried every jetting combo ,spark plug, any advice on testing the stator , cdi etc would be appreciated 
Mc250 driving me crazy
- Thread starter Greenwood10
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Greenwood10
New member
Gasgas mc
Hi , bike starts well,runs rough when cold ,clears as the engine warms . Then when you put any load on the engine it coughs and splutters then sometimes stalls . Will always restart easily then sometimes goes well for a little while, then plays up. I have tried every needle position, pilot jet and main jet. Gone through a few spark plugs(just elimination). Just pulled the reeds out and they are slightly open, will replace them.Uses a lot of fuel. Once away from the low end sometimes goes really well.
I have cleaned every electrical terminal/connector
Thanks marcus
Hi , bike starts well,runs rough when cold ,clears as the engine warms . Then when you put any load on the engine it coughs and splutters then sometimes stalls . Will always restart easily then sometimes goes well for a little while, then plays up. I have tried every needle position, pilot jet and main jet. Gone through a few spark plugs(just elimination). Just pulled the reeds out and they are slightly open, will replace them.Uses a lot of fuel. Once away from the low end sometimes goes really well.
I have cleaned every electrical terminal/connector
Thanks marcus
Wheelieman69
New member
Make sure you check that exhaust is not backed up in any way as well. Clean screen if you have one in your exhaust.
Wheelieman
Wheelieman
Greenwood10
New member
Mc misfire
I have a fully qualified motorcycle mechanic coming around tomorrow , but I may have found something silly that I have done. The bike came with a twinair air filter system which has two separate filters , one fine one course. I have probably over oiled both causing over fueling that got worse has the day went on due to the filter getting dirtier . I will reassemble bike tomorrow and test.
I have a fully qualified motorcycle mechanic coming around tomorrow , but I may have found something silly that I have done. The bike came with a twinair air filter system which has two separate filters , one fine one course. I have probably over oiled both causing over fueling that got worse has the day went on due to the filter getting dirtier . I will reassemble bike tomorrow and test.
Greenwood10
New member
Mc250
Just checked the peak voltage from the exciter coil and it reads 30 volts. Swapped ignition with ec 250 ,tested peak voltage 200 volts.i think I found the problem. Ye ha baaaaarp
Just checked the peak voltage from the exciter coil and it reads 30 volts. Swapped ignition with ec 250 ,tested peak voltage 200 volts.i think I found the problem. Ye ha baaaaarp
Greenwood10
New member
Mc250
I have sent complete ignition away to get tested to find the problem with this bike. Have been informed that both the stator and cdi could be faulty. I will get the stator rewound and hopefully pick up another cdi. I have borrowed a complete ignition from a friends ec200 so I can go for a decent ride and get a feel for this bike.
I have sent complete ignition away to get tested to find the problem with this bike. Have been informed that both the stator and cdi could be faulty. I will get the stator rewound and hopefully pick up another cdi. I have borrowed a complete ignition from a friends ec200 so I can go for a decent ride and get a feel for this bike.
