GPX 250 help.

[Knight Rider]

Hey guys, I just tried to start my 2004 GPX 250 to come home from work and it wouldnt start, when i pressed the starter the dash lights would dim but nothing would happen. thinking a flat battery I got a push start from a mate and the bike started but was very rough and showed 8000 rpm at just above idle and is unrideable. I got a lift home from work but have no idea what could be wrong.

Has anyone had a problem like this or have any ideas what it could be? I am thinking it might be an electrical problem?

The bike hasn't had fuel put in it for about 2 months and sat around for 5 weeks over christmas. It has been ridden about 25kms to work and back once yesterday and then to work again today and it was fine.

Thanks in advance, Knight Rider

[BERT]

Athe tachometer indication with the lack of battery power sounds a bit like regulator rectifier to me.

[Phildo]

Check the battery.

[Knight Rider]

I will check the battery tomorrow when i get to work, is there any way to check the regulator/rectifier?

[Knight Rider]

Thanks guys all sorted, the battery was dead. I thought it was something more serious because of the tachometer thing but lesson learned, start simple first.

I have a battery from a ct110 in at the moment it has 1/2 the a/h but seems to be working fine, I will have to see how it goes in the winter when it needs a bit more cranking to start.