Help?? Thread size?

Does anyone know the thread size on the output side of the crankshaft this would be the thread that holds the primary gear on. I didn't do it. I'll try to fix it with a thread restorer.

The latest reference I have is a 76 360WR, its an m14 x 1mm pitch.

Thanks.

You did not mention which crankshaft you are dealing with. I had to buy a die for the 430 crankshaft I got from eBay. I am not sure which end but think it was think it was the ignition side as I was able to fix the thread on the primary side with a diamond threadfile.

83/250 crank tranny side. Output side, primary gear rides on.

I'd like to salvage enough parts for another bike for the grandson.

Did you try and measure the diameter and hold a 6mmx1.00mm pitch (clutch cover) against the threads. I have found metric pretty easy to figure out. Count out 10 threads measure and divide by 10 or whatever turns of threads you choose. The 14x 1.0 suggested in post 2 should be either right or not right. The axle is 15mm and the swingarm pivot for the mono shock bikes is 14mm.

I ordered some thread gauges from eBay they were $ 0.80 so I ordered three, two are for my sones.

thats whats so nice about metric...

If the thread is on the left end of the crank, it will be right hand thread, If on the right end of the crank, the thread is left hand. This practice keeps the nut from loosening during operation. Counter to direction of rotation as facing the end of the rotating shaft