not starting and tacho flips to 9000 and back?

Thanks Simon

A big help at ponting out where the fault lies...many many thanks for that.

I have just spent 2 hours with the tank off and the side panels off cleaning every single connector block I could see and get to which is just about all of them I think (incuding the clutch connector block.)

I am going to see how it goes over the next few weeks - I am not using the bike again until next wednesday so will see if it manifests again.

The non starting has happened on about 6 occasions over the last 2 months just as the weather has been turning so I am being optomistic that it could be a dodgy connection somewhere in the ignition circuit - logic says that if it was a component it would either work or completly not work - and as the bike has come back to start each time I think it might be in the connections within (as you say the ignition) circuit itself - does that make sense to you?

I am hoping that I have solved the problem because there were about 3 or four of the connector blocks that I found to be crudded up with the old green gunk - cleaned them all out and gave them a good dose of WD40....fingers crossed!

If the fault states to be an ignition circuit then it could be anywhere...time will tell.

If it is a specific solid state part of the ignition circuit I think it might not have been connecting properly with the green crud stopping it...fingers crossed!

Many thanks once again

Will post if it does fail again or be trouble free - either way.

Safe riding

Oddly, In 100k of D9 riding I have never had an error code.

I have had an ignition switch fail. Perhaps you know someone locally who could lend you a D9 ignition switch and try it for a while? Can I also suggest checking the connectors and wires on the ignition inhibiter circuit. sidestand switch gear position wire as well as clutch switch which you already have done.