It has been nearly over a year since my last reliable Yamaha Service Center closed down. I have not found a decent Yamaha Center since then. The ones in An Phu were terrible. My last trip to the Yamaha Center in An Phu was a nightmare. The one before that to a private repair shop was not even better. Thanks to my former housemate, Joe Creazzo of Dr. Joe Auto Speed Company, I found a good Yamaha Service Center in District 8 just across of the new Nguyen Van Cu bridge and very close to District 1.
These guys did a great job. I had them change the oil, rear brake pad, sparkplug, and air filter. The customer service was good and what was impressive, they could not speak English and my Vietnamese was limited. My total cost with VAT was 255,000 VND and I gave a 30,000 VND tip to the mechanic.
I highly recommend Van Phong Yamaha Service Center. According to Joe, he has about 8 total dealerships in Hanoi and HCMC.
Van Phong Yamaha Service Center, 128 Ba Trac, District 8 (about 1 km to the right after crossing the Nguyen Van Cu bridge)