CrewDawg - I am curious to hear your results with the Antigravity battery.
I was able to figure out my issue with the Motobatt MHTX16 battery. It comes with two of the following foam spacers, you have to attach one of them to the bottom of the battery when installing into a Pan America.
In order to attach the positive cable to the positive terminal I had to remove the three foam strips that are in the bottom of the battery compartment.
I asked the folks where I purchased the MHTX16 battery (Impact Battery) if they had any recommendation on torque values on the M6 screws (used to attach cables to battery) & the M5 screws (used to attach terminals to battery) and they said “I just tighten by hand until I notice resistance change and maybe go a quarter turn more”. I checked with the Motobatt folks and they said they did not have any recommendations on torque values.
After all of this it doesn’t look like the Motobatt MHTX16 battery is going to resolve the issues (i.e. start & fault codes) that I have been having with my PAS. After installing a fully charged MHTX16 battery I attempted to start my bike eight times. My results were:
- Five times the bike started OK, no fault codes.
- One time a very slow start, two fault codes (BCM=C181664C, ECM=U228700P), measured voltage dropped to 8.25v when starting.
- One no start, no fault codes, measured voltage dropped to 8.24v when starting.
- One slow start, no fault codes, measured voltage dropped to 9.30v when starting.
The MHTX16 battery is supposed to have a CCA rating of 350. I find it a little odd that I am seeing the same results that I am having with the HD battery (65958-04C) which has a CCA rating of 225. Or maybe there is something else wrong with my bike causing the voltage to drop too low when starting. Anybody have any ideas?