Join Date: Nov 2012
Location: Edgewood, KY, USA
Re: Speigler SS Brake Lines for LT
Don, My 2003 has a different ABS module and reservoir location as your 2005 but functionally I think they are similar. Reverse bleeding the front control circuit pushes fluid upwards, so that makes sense (be careful as I mentioned before!), but I still needed to forward bleed the front master cylinder. I see no benefit in reverse bleeding the rear control circuit since the master cylinder is at the low point. That took the longest to bleed thoroughly (first reverse, then forward). I forward bled F1, F2, F3, R1, R2, R3 on the ABS module a couple of times in that sequence. The wheel circuits I first reverse bled, then forward bled using the servo pumps. I worry about reverse bleeding the wheel circuits since you are pushing contaminates towards the ABS module, but maybe I'm wrong on that point. In the end I used almost a complete large container of brake fluid and had normal lever / pedal feel and no ABS faults during the test ride, so I think I got it right.
So, to answer your question I would only forward bleed if I were to do it again. Other opinions may vary.
2003 BMW K1200LT (my favorite 2 wheeled land yacht)
2008 Yamaha FJR1300 (recent addition)
1982 Yamaha Vision (long gone)
Last edited by Jim_McG; Mar 3rd, 2015 at 11:17 am.