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GS650 GL Oil pan bolt thread count

  • Thread starter Thread starter jchaplick21
  • Start date Start date
J

jchaplick21

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Hello all, does anyone know or know where I can find, the thread count on the oil pan bolt of a gs650gl?

For clarification Im talking about the bolt that you remove to drain the oil from the oil pan. The previous owner of my bike stripped the $hit out of the oil pan threads and I am debating repairing the threads or just replacing the pan itself.

Any ideas would be greatly appreciated.
 
it's an odd size. you could source out another pan like I did, or you can use one of those self tapping oil plugs they sell, which I also did before I got the replacement.
 
Thanks, thats exactly what I will do myself in probably that order haha.
 
it's an odd size. you could source out another pan like I did, or you can use one of those self tapping oil plugs they sell, which I also did before I got the replacement.

The oil drain plug on a GS450 is just spark plug thread. I threaded mine into a head to make sure. So it's 14mm X whatever. I can't see how a 650 drain plug would be different, but?.if it has a 17mm head it's probably just spark plug and that's easy to source a helical or insert for. Probably the most commonly stripped thread in the world.
 
The head is 21mm. You can find self tapping drain plugs of the same diameter, but the thread pitch is wrong. Check bassclif's site for the tutorial on stripped pan plug thread repair
 
14 X 1.5 - weld a bead around it and cut new threads or just make it 3/8 NPT and use brass pipe end from hardware store.
 
It's 14mm diameter X 1.25mm thread pitch, same as a 14mm spark plug.

This actually makes things a bit easier, since there are plenty of thread inserts available for spark plugs that will work well for oil pan threads. Use a quality solid insert instead of a heli-coil.
 
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