Any one have any issues with bad threads on ada engine side couplers for Yamahas?I had one that spun on to an adr crank ok but wouldn't spin onto two different oem crank ends. Tried some oem couplers to make sure it wasn't the cranks and they went on smooth. Found another Ada coupler in the shop and it spun on the oem crank fine, ordered another set of ada couplers for the other motor and same thing, crank side goes half a turn and locks up. So 2 of the 3 ada engine couplers I have don't work. Any one else have this issue?
Bad Ada coupler
- Thread starter 800750
- Start date
Big Kahuna
Administrator
- Location
- Tuscaloosa, AL
Contact ADA, sounds like some bad thread tapping.
Yes I'm sure. I spun all the mid shaft couplers onto midshafts to check them too and they all went on perfect.
- Location
- Minneapolis, Minnesota
Yeah it was definitely strange to see it. Usually those couplers spin on like butter.
I had that happen with a different coupler. You may just need to chase the threads of the coupler with a tap, unfortunately. You could see if ADA can take them back and chase them for you?
Sorry to hear about the set back
- Location
- Cleveland, Ohio
Might have a spare single here if you need.
It is a PITA when parts have issues. But it happens, and good companies like ADA work to minimize defects and then take care of issues when they arise.
ADA couplers usually thread on just fine, same as oem, but there were a few from that one batch that had that issue. ADA replaced them for anyone who got one and told them or their dealer about it. Not a common issue or a continuing problem that I am aware of. If anyone else has that issue, ADA will replace it for sure.