Stripped out

Jaybird

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#1
While changing the oil on my 125sx, I apparently tightened the drain plug, on the clutch side, too tight and stripped out the aluminum threads from the case.
I hoped there were some threads left and I tried using teflon tape around the plug. No go.
Anything anyone can suggest short of redrilling and tapping the hole? :(
 
Last edited:

Shaw520

Damn Yankees
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May 14, 2000
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#2
Heli-coil

It will have to be drilled and tapped, but you can use a Heli-coil kit to reduce the size back to OEM thread, so you can use tha OEM plug. Use a shop-vac along with the drilling and tapping to minimize shavings into the crankcase. You will need to flush crankcase afterwards.
 

gasgasman

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#3
You can also put grease on the drill bit and tap. This way the shavings will stick to the grease .
 
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#4
Are you referring to the oil level bolt or drain plug? (My 380 drain is on the left side) THe level check bolt strips very easily. I heard you can run a longer bolt as the hole is threaded in pretty far. I do not use the checker bolt because of the stripping problem. I just add 800 ml of oil and forget it 'till the next change (only a few riding hours away).

Have a great day.
 

Jaybird

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#5
"Are you referring to the oil level bolt or drain plug? (My 380 drain is on the left side)

The 125 case has two drains..main w/magnet on the left side, and another on the right side below the check hole. The 380 doesn't have the second drain. I can't figure out why the extra drain...it's a smaller bolt than the main, doesn't have a magnet, and I get no more oil out of it after draining from the main. I figured a hidden sump or something the main couldn't empty..but I don't see it.
Anywho...I won't be using that drain again, once I've get it redrilled.
Thanks for the help, y'all.