Any ideas would be appreciated....
Due to the birth of a beautiful daughter and the start of a new business I had to put the ST13 in protected storage for a while, approximately 18 months. Yesterday I retrieved it, installed a new battery, check the fluids, and fired it up. Everything seems to be great with the exception of a very soft rear brake pedal. Symptoms are as follows:
Upon first use of the pedal (and only the pedal) it easily goes full travel with very little stopping power. An immediate second pump is much firmer with more brake power, and an immediate third pump the pedal is firm and functions normally. 1/4 mile down the road and this scenario repeats.
If any amount of front brake application (the lever circuit) has been made first then the brake pedal is firm and functioning on the first application as would be normally expected.
There are no ABS faults, no signs of leakage, and the fluid levels appear correct. What say you all? Is this a simple case of needing a bleed (though I don't know how air would have entered the system) or have I lost a master or secondary master cylinder somewhere?
John
Due to the birth of a beautiful daughter and the start of a new business I had to put the ST13 in protected storage for a while, approximately 18 months. Yesterday I retrieved it, installed a new battery, check the fluids, and fired it up. Everything seems to be great with the exception of a very soft rear brake pedal. Symptoms are as follows:
Upon first use of the pedal (and only the pedal) it easily goes full travel with very little stopping power. An immediate second pump is much firmer with more brake power, and an immediate third pump the pedal is firm and functions normally. 1/4 mile down the road and this scenario repeats.
If any amount of front brake application (the lever circuit) has been made first then the brake pedal is firm and functioning on the first application as would be normally expected.
There are no ABS faults, no signs of leakage, and the fluid levels appear correct. What say you all? Is this a simple case of needing a bleed (though I don't know how air would have entered the system) or have I lost a master or secondary master cylinder somewhere?
John