i have two bachmann s4 switchers they are new.my problem is that one takes slow the other on takes off like a rocket.all the cvs are the same
on both engines.any one got a idea?

i have an s4 4 that runs good but stops for about 7 seconds then starts up for time then does it again

i have a s4 dcc engine it was running great then it slowed down took cab off looks like fly wheel is jerky enyone hav had this problem

how do you change  ndot to reverse travel when in forword engine goes bsckward  have giatrax controller dcs51 lights work fine