ok I have another winner of a project. its a 2003 trx 450 fe when I got it the battery was dead and the was told the battery was new but the machine had a battery draw and would drain the battery in 2 hours. I tested the stator and the stator was fried so I got one and started to change it out when the gear position switch in the stator cover basically fell apart as soon as I took the cover off. ordered a new switch and installed the switch the stator and a new pulse alternator. hooked everything up and put my charger on the battery and discovered a crap ton of other problems, soon as the charger was turned on the whole bike started to vibrate. I traced the vibration to the change control unit, unplugged it and noticed the reg/rec was getting hot while the charger was on so unplugged it (have a new reg/rec ordered).
The whole time I have different codes being flashed at different times, 4×4 light flashing 4 times, giving the 8 code and think I seen a 6 code on the gear indicator that is — and the whole time no neutral light unless I short it at the sol and no electric start unless sol jumped (no neutral light).

anyone have an idea where to start? would the reg rec take out the change control unit? and is the lack of neutral light the reason for no spark and electric start?

jasson