Training Wheel Hero
Join Date: Apr 2015
Location: Vancouver BC
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
High idle issue after dead battery
It's an '06 CBR600RR w/ 31,5xx KM's on it. After being parked (impounded) for 7 days the battery was dead, wouldn't start. Got some leads on it to jump it and it wouldn't start still but was turning over fast like the battery had a full charge; figured I may have flooded it.... I tried starting it with the throttle at full... little spitting and sputtering and it fired up, at a high idle ~2-2500RPMS and after 3-4 minutes it jumped to ~3500RPMS. Took it for a ride as I figured the battery just needed charging but even after a 20min ride (had to go to work) it still continued to idle high (as it were cold/choke on).
Tried disconnecting the battery again/resetting ECU and after firing it up it idled around ~2000 and held there until I put it in gear and let the clutch out slightly it jumped to ~3500 again.
Voltage with bike off is 12.89V, voltage while cranking is 11V, voltage at idle (2000RPM) 13.86V, voltage at idle (3500RPM) 14.38V
I'm hoping it's just the battery, need to get a load test done on it but just looking for advice. My main question is... Will the bike adjust the idle to compensate for a weak battery? Doesn't seem like a Reg/Rec issue as it will hold at 14.38V