Right then, being the knob that I am I left the ignition turned on overnight and the battery died so I charged it up and replaced it on the bike pressed the starter and then strange things started happening smoke started appearing near the starter solenoid I'm pretty sure it was from the cable to the starter motor so I turned off the ignition and the bike was still trying to start by itself smoke was still issuing from said cable so I quickly disconnected the battery and it stopped. I took the battery out put the pos wire back on to the batt and touched the earth to neg terminal and sparks from terminal and the bike was trying to start itself again with no key in ignition.  It seemed like it was struggling to turn the engine over and the decomp solenoid didn't seemed to be lifting the valve properly no loud clunk like usually heard when starting. Not sure how to proceed - any ideas anyone? thanks in advance

Hopefully the starter solenoid is stuck.
take a plastic screwdriver and rap the fender just below the ig switch.

If it's not it, then it's the decomp controller.

I am not sure how long the manual decompression kit will take to get to you.....you are across a pretty big pond from here in KY!

If it turns out the decompression controller is the problem....don't buy a new one.  Most likely with a good battery and temperatures that are not too cold - you can get by without the compression release for a little while.  Before I developed a way to make a working lever operated compression release, I had tried using a Honda CR clutch and compression release lever - and it turned out the pull on the clutch lever was not long enough to fully release the clutch, and the small compression release lever just wasn't strong enough to pull the compression release.  So....I ended up riding for a full season without a working compression release.  Out of 100 starts the bike would fire right up without a problem - then every once in a while the piston would be on the bottom of the compression stroke when I hit the start button - and the starter was not strong enough to get the piston to go over TDC.  I would have to release the starter button, then put the bike in gear and inch it forward until I got off the compression stroke, then put the bike in neutral and start it up.  (When you get your manual release installed....you likely will only use it on those rare occasions when the starter won't get the engine moving.

The RYCA site may have instructions on how to remove the Compression Controller and how to alter the wiring harness.

No problem about the time Dave, the bad weather over your way will probably hold it up as well but I hope the problem I've got now will be sorted by then .I think I've seen the wiring diagram somewhere verslagen . Anyway I'll try a few things and report back with the results thanks for the ideas and help people.

Dirt collects down by the plug. Blow it out.
You CAN run it without the decomp. Just. Work with it until it's  Not on the compression stroke before starting.
I had a solenoid stick closed on the pickup. Totally notcool.

If you're questioning ignition, or fuel, shoot ether at the intake.

What did changing the CD I run?

The CDI Requires a hot battery to make it spark.
I left it on, left it on park, generally caused myself grief.  CDI held strong. But a battery that spins it over may SOUND great, but the battery voltage is below what the CDI needs.

Jumper cable, or a good charge on the battery.
Prove before digging.

With the seat off there is a single hot wire . The decomp timer is close to it. I put twelve volts on on of those leads and the decomp clicked , motor spun over. Even if the key was in my pocket. Turn the key on, and it would start.

By studying the wiring diagram you can find it. I WANNA say it was the second wire from the left, as I was standing behind the bike.

Many thanks for the info everyone, all seems to be well after changing the starter solenoid then charging the battery and cleaning a couple of connections just to be sure, the satisfying clunk of the decomp occured and it fired up as if nothing happened, like you said JOG charging the battery for longer probably the final link in the chain and verslagen the starter solenoid must have been stuck so I'm glad it didn't turn into an epic at least I know the spare CDI works, cheers ps is it worth sorting out the old solenoid or just bin it, if it stuck once is it likely to mess up again?anyway thanks again