2002 VFR Rough Idle after start-up

2002 VFR, 35,000 kms (approx)

When I first start up my bike in the morning, she idles rough. If I try to blip the throttle, the bike will stall. This is only when the bike is cold. Is this normal?

New Plugs early this summer, always running 91+ octane fuel.

Any ideas guys?

Thanks

 

Always suspect plugs first, but you changed them this summer??? so is it summer in Canada already, mon frere, eh?

it's your blinkin' fuel injection sensor/s or a clogged injector/s so check for blinkin' error codes and wish you had the elegant simplicity of carbs......


may be time to synch throttle bodies?

 

I know this is going to be a noob question, but how do you sync throttle bodies, and what does that accomplish?

and yes, it's kinda summer up here.... still around 0c at night....

 

the exact answer to that excellent question is in your Honda service manual.

 

I get rough idle a couple times a year and started happening when I bypassed my O2 sensors. After a quick blip though it's all good. No stalling though...