abs kicking in when bike is warm

I have a 2005 VFR 800 and I was doing a motorcycle refresher course last weekend. There was alot of slow speed maneuvering involved and I noticed that in the afternoon when it was warm and I was dragging the rear brake the abs was coming on, well I think it's that. It was a weird sensation like the brakes kinda jerking so I think it was the ABS, but I am not sure what would cause them to come on. I have had no issues in the morning and I have notice once before on the street when using the brakes often like stop and go traffic when it's hot, it did the same thing.

Would you guys have any clues what could cause such an issue?

 

if the sensor data indicates that a wheel is about to lock, it's going to engage the mechanism. High speed or low speed.

Sensors monitor the rotational speed of the front and rear rotors and, via a computer, compare the rotor speeds against the road speed. The computer instructs a control unit to reduce the brake pressure when the wheel is judged to be close to lock-up.

Operative word - Sensor...........

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ON later 2006 on models they changed something on the ABS and combined linked brakes system - I never found out for sure what got changed but I think they changed the front rear link set up to only use one rear piston not two to give better (optimum) brake balance in emergency braking situations. Certainly the manual suggests the system is not live below 5 mph - that is why the ABS warning light stays on until you are moving above 5mph. I don't know if that also applies to earlier models but obviously Honda does not want it operating during slow speed turns etc, which suggests that you may have something faulty - and inevitably sensors and wiring will be the most likely culprit. Obviously you are now conscious of an issue which won't help your confidence during your course - so getting the system checked by Honda is probably the next step.

Good luck with the course and let us know how you get on!



Skimad4x4 6th Gen Militia #218 - European 1st Division