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My 90's Gas Gas Contact250 Project..

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  • J if it were me I would check out reed block up-turn and dump any fuel that has got into the crank heat up a good plug and maybe a squirt of easy start. failing that....... go for a beer ;-]

  • thats_a_five
    thats_a_five

    You say you turned the bike upside down and "a fair bit of fuel came out." Just to be clear, there will be fuel that comes from the carb bowl. That is not a problem, it is just the bowl draining.

  • Check the stator and HT lead then. Although your spark appears ok when out and against the frame the spark is only under atmospheric pressure, when under compression the stator may not be producing th

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  • Author

Hey guys. I, back onshore due to bad weather so I'm spending some time on the bike today!

I'm going to try everything suggested and will hopefully see a result :)

Many thanks for your help.

Its really appreciated..

Keep tuned...

Once again... Will it run???

  • Author

Sorry guys.. I fell asleep! Haha,

Digging it out now. I'm going to remove carb and kick it over with plug out, once I'm convinced its dry I'm going to put some fuel down plug hole and try get it firing!

  • Author

Right guys..

Put fuel in the plug hole, fitted plug and lead.. Kicked over.. Nothing at all!

Removed all the electric boxes so I can check wiring.. The fan live was broken, and I have come across a 2 connectors going anywhere.. Now checking the diagram so hopefully something simple!

  • Author

Red to ignition coil!!! Not connected, I was gettngi a spark but wonder if it had loose connection so was weak!

c'mon, c'mon......I am sat here at work waiting for the beast to come to life.......

  • Author

No chance :( the connector just come loose. Checked spark, I have decided its weak! if the gap if anything bigger than round the .5 one of the plugs are set at.. It won't spark!

Come on guys.. What's next? :)

Earth is good?

If the spark is weak after you are certain all the grounds are clean it sounds like you need to test the stator. It tells you how in the link I posted.

  • Author

Will give it a check now :)

If it tests bad I am told new parts are not available for the stator on our years, you will need to have the spark coil rewound.

  • Author

I only have an old non digital multimeter with me.

I am not Daimler with how these work if I'm honest, maybe you can help..

On the black wire the multi meter just flies all the way from where it is in the pic, right across to the opposite side of the multimeter (it does the same when I touch both probes on ground!! Hmmm

0fd968f0307f549d70bb4c23a2fee3d9_zps34813e06.jpg

What range have you set the meter on and what value are you trying to read?

Also you need to set the zero position of the meter.

When you are looking straight at the meter using the mirror behind the needle (if you can see a reflection of the needle you are not looking square on at the meter) use the adjustment dial to set the needle to zero!

  • Author

This is ghetto, I'm getting a digital one sent over. Can't you tell I'm young! Lol

I should have it by 7-8 tonight so will b too dark to work, will crack on tommorow :)

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