Dirt bike/motocross

[unfazed]

Can you check the wires from the ignition switch with a meter?
is there a short across the green and one other wire with the switch in its present state?

If you do not have a meter a battery and bulb will do the trick

[sinto]

Can you check the wires from the ignition switch with a meter?
the switch can't be moved as I've no key
is there a short across the green and one other wire with the switch in its present state?
I've disconnected the ignition switch at the connector at the back and then connected the black and red wires together on the bikes wiring loom side, and connected my battery from my bike, after doing this I was able to press the starter switch on the handlebar and it turned over

If you do not have a meter a battery and bulb will do the trick

I think I'll put the carburettor back on, put some fuel in it and try it as above and see if it goes into action.

I found a wire in one of the connectors not inserted properly so that might be the reason it didn't start for previous owner.

In the note of the carburettor, does anyone think it's worth cleaning or just replace, it has been sitting idle for a few years and it doesn't look clean inside.
What would you clean it with?
It's approximately  £20 for a new one.

[unfazed]

I usually use Cellulose thinners, but take out any rubbers like seals and O Rings first.
The cellulose will damage rubber and some gasket types.

Then with everything out soak all the jets  and the carb body in the Thinners over night. Then wash it out with the thinners and reverse blow through all the orifices, but at £20 for a new one is it worth the trouble.

On some 4 wire ignition switches when on it connects 2 wiree together and when off connects the second pair of wires together, which is why I need to know if there is a short circuit between two wires in the off position

[sinto]

Wee update.....
Cleaned and sorted the wiring loom,
Split and cleaned the carburettor (temp job as need a new one me thinks)
Checked spark plug
Checked all other engine parts
Put some fuel in the tank

Used my bike battery to give it a try bit it won't fire up
Don't know if easy start will help and also need to get a new carburettor as I think old petrol has goosed the jets etc

But apart from that, my boy is learning loads and enjoying working on the bike

So once I order the parts that's needed hopefully it'll fire up.

Anyone any idea what size of carburettor I should get? I think it's a 22mm that's on it but been told I can get a 24mm for extra ooomph but can only seem to get them from USA or either a 26mm from UK, as far as I know I can only fit a MIKUNA one on it but I'm not sure.

[sinto]

Well, eventually got all the parts and got them fitted and with all the other stuff happening to me I got the thing started
Not running sweet but it's a start, a wee fine adjustment here or there and it'll be good to go me thinks
My boy's delighted and that's the main thing in my book.