Any ideas ??

[mark fz1 liquid silver]

Been busy and not started my bike (2006 gen2 fz1) in over 2 months so started it and it fired up first time as it's always does but for some reason it was idling at 3000 rpm as it normally idles at 1500 rpm from cold ,I then popped it in gear and it dropped back down to 1500 rpm, does anyone know why it did this as it's never done it before is it something to get checked.it has got a pc111 on it,so could this be causing the problem
Any advise would be great

[Dead Eye]

Sounds like automatic choke to me... I have no idea if the Gen2's have that or not though...

[mark fz1 liquid silver]

Yeah it has automatic choke but usually from cold revs to 1500 rpm then when warm drops to just under 1000 rpm , I just don't know why it went to 3000 rpm as it's never done it before

[pilninggas]

Yeah it has automatic choke but usually from cold revs to 1500 rpm then when warm drops to just under 1000 rpm , I just don't know why it went to 3000 rpm as it's never done it before

Well it has cold-start enrichment, like most EFI vehicles - which richens up the mixture at start, there is no 'choke' in the sense of a trapdoor or butterfly.

If the bike hasn't been used for a time, it might be that one or more of the throttle butterflies is not seating properly (at closed throttle the butterflies are almost completely shut), you may have to pull the airbox have a look - a set of vacuum gauges would show it up, but you'd have to put it on and do it from cold to really isolate the problem.

[mark fz1 liquid silver]

Thanks pilninggas will try and have a look tonight

[stevierst]

Mine did that a few months ago when I didn't start her up for a couple of weeks. The revs went up to about 3k at idle. I just took her out and rode steady for a while. After a few seconds of riding, the tick over went back to the normal cold start and she was fine after that. Not happened since for some reason.
I think it's the sprites and gremlins in your engine getting bored and chewing wires. They also ate my TDM shock, and threw the power steering belt wife's car. They're little tinkers them gremlins! mokin

[Falcon 269]

There's a wax-filled device in the idle circuit which holds the idle high on cold start.  If this hasn't been used for a while it can prove temperamental and cause your symptoms.

Give a bit of a thrash and see if that dumps the gremlin in the road behind you.

[mark fz1 liquid silver]

Thanks stevierst and falcon 269 for your advise,
Started it when I got home from work today and it's now running fine ( idling correctly from cold start) so think your write as I did take it round the block yesterday when it did idle at 3000 rpm so hope those gremlins fell out and are long gone,I even rode to oxford and back tonight just to check every things ok and it is,
So thanks again for all advise given