VPI motor makes loud pops when turned on & off

Motor runs fine, but still pops as before with the .001

Joe

Joe:
I have the VPI HRX which I purchased new last year and had the same problem. I also had the VPI interconnects.
I called VPI, and while they were responsive, they didn't have a good answer to my questions.
They simply said "use the SDS to shut off" the motor after each play.
Anyway, a few months ago, I stumbled upon an opportunity to buy a pair of Nordost Quatro Fil 1.2 Meter phono RCA to RCA interconnects from a fellow Audiogon member at a steal.
Now, I get a pop only 25%-50% of the time and when I do hear the pop, it's minor. I no longer need to mute my preamp. In fact, I've had no loud pop at all since my new I/Cs were replaced.
Perhaps the I/C is the problem! I'm not suggesting you buy a new and really expensive I/C, but maybe it's worth exploring.

Grant

Joe, Mine only has one .68u in it and it has no pop whatsoever. Where does the .001 connect to? Is it in parallel with the .68u?

VPI stated to me that adding a capacitor will negatively affect the performce of the motor/SDS. "Sounds better" w/out additional cap.. So i left my set-up alone and lower to vol pot when pressing the on/off.

I tried the .0022 instead of the original .001 - it still pops so I will put the original one back in.

This motor does run very smoothly and silently.

I took apart the motor housing today and found that my motor is the 600 RPM Aries motor and not the 300 that I had guessed.
The 300 RPM motors are a relatively inexpensive upgrade from VPI..
Has anyone heard a real difference when changing to a 300 RPM motor?

Joe

Sidssp - on my motor, the .68u goes between the red from the motor and the black from the motor.
The .001 goes between the 2 wires to the on\off switch.