CBF600 High Idle

waxandhide · L Plate Warrior Joined: 17 Aug 2018 Karma :

Hi guys,

Just bought a 2007 CBF600 (FI) SA-8 with 43k miles on it. Overall the bike is is good condition but it seems to have a small idling issue and I'm stumped!

The auto choke will kick in regardless of whether it's the first start of the day from cold or if I've been riding for a while, turn the engine off for a minute and then start it again.

Once at temperature, the bike seems to run at around 1500 RPM but when I put it into neutral the revs drop to around 1350 RPM and then rise again when I put it in gear. When riding to slow down and pulling the clutch in, they also don't seem to drop as quickly as they probably should.

Any thoughts/help would be much appreciated!

Cheers

jaffa90 · World Chat Champion Joined: 06 Apr 2016 Karma :

Does this bike have a choke cable to pull out?
Is the idle screw set ok?
Sounds like you have clutch drag so what engine oil is in it?

waxandhide · L Plate Warrior Joined: 17 Aug 2018 Karma :

It's the fuel injected version so no manual choke or idle screw.

I did think clutch related but it's not dragging in any gear so not sure.

jaffa90 · World Chat Champion Joined: 06 Apr 2016 Karma :

Your bike has many sensors giving the brain ecu info,
sounds like the cold start / temp sensor could be faulty but i`m no expert on F.I.