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Posted

I recently acquired a Yamaha BB-V MIJ bass that had spent an unknown amount of time with no strings attached and with the truss rod tightened down quite a ways. Consequently, the neck is bowed backwards. I released the truss rod nut all the way, and strung up the bass, let it sit for a week. The neck came back a considerable portion but still has a way to go before being playable, and I think that all I will get with string tension alone. I see various videos on YouTube regarding neck straightening, although only for necks banana'ed in the usual forward direction. If anyone can give me advise on how I can resurrect the Yamaha neck, I would very much appreciate it. Sorry if this topics is already addressed but I couldn't find anything. Cheers Bass Chat.

Posted

You can make a jig that trains the neck back into shape. I built mine in an afternoon.
I'm on my phone just now so can't really find links for you but you can Google for plans or ideas.

Posted

If you have loosened the rod off and it has moved, you may find over time it will settle back further. Try a set of heavier strings, Rotosound are very tension-y. Just goes to show what happens if you take the strings off without loosening off the truss rod.

Posted

Thanks so much for the feedback. I will try the Heavy Strings for a while. If that fails then I'll make myself a jig and apply light pressure for an extended period of time.
Cheers!

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