oversize m12 1.50 piggy back drain plug - Kawasaki KLR 650 Forum
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post #1 of 6 Old 01-03-2014, 10:27 PM Thread Starter
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oversize m12 1.50 piggy back drain plug

Hey everyone, I'm looking for an oversize m12 1.50 piggy back drain plug for my bike. Any one knows where to get one. Thanks in advance.
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post #2 of 6 Old 01-04-2014, 12:17 AM
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An M12-1.50 oversize drain plug (not piggy-back) is available from this source: http://cgenterprises.com/drain_plugs...ize_repair.htm

Another pitch (e.g., M12-1.25) oversize plug might work o.k., if an oversize M12-1.50 oversize plug can't be located.

I've seen M12 oversize oil drain plugs (NOT piggy-back; don't recall the pitch) on the rack at Advance Auto Parts stores.

I'd favor using a NON-piggy-back plug, if possible, because of the added projection of the secondary plug; that is--the smaller plug sticks out farther beneath the engine cases, and might invite damage from a rock strike moreso than the lower-profiled one-part plug.

If you're desperate and urgently need an oversize oil drain plug, you might simply canvass the auto parts and accessories stores in your area for simply, "Oversize M12 Oil Drain Plugs."

Be sure to use a good washer with your new plug; good luck!

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Here's a link to motorcycle oil drain plug thread diameters and pitches:

http://cgenterprises.com/motorcycle_oil_drain_plugs.htm

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Last edited by Damocles; 01-04-2014 at 01:06 AM.
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post #3 of 6 Old 01-04-2014, 05:54 PM Thread Starter
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Thanks, just ordered an oversize m12 1.50 on eBay, not the piggyback one.
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post #4 of 6 Old 01-04-2014, 06:37 PM
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Quote:
Originally Posted by bigboy View Post
Thanks, just ordered an oversize m12 1.50 on eBay, not the piggyback one.
Good for you!

In your first insertion, I'd recommend coating the threads and end of the plug with grease, to catch any metal shards resulting from tapping the hole to the larger size. When the plug's fully inserted, back it out and clean off the grease with any attached flecks of metal.

Proceed slowly, in, until you meet resistance, then back out slightly; repeat, until you've fully "bottomed" the plug (not too much torque, now!). Use a good washer!

If you have enough base metal left, the oversize drain plug's tapered threads will tap a new, slightly-larger hole with threads the same pitch as before. If the plug seals, you have a permanent repair; just . . . be CAREFUL when torqueing-down the plug hereafter!

Good luck.
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post #5 of 6 Old 01-09-2014, 07:21 PM Thread Starter
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Just did the oversize m12 1.5 drain plug in my bike and it worked fine. But b4 I proceed I measured the plug and it measured 12.4mm on the bottom part of the threads. Threads tapered it goes from a 12 mm from the starting point and 12.4mm at the bottom of the threads. It's a singe oversize plug that I got from eBay. I did as what Damocles advised to go slow and take ur time on putting it in. No drops or drips and plug is fixed.
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post #6 of 6 Old 01-10-2014, 04:54 AM
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Congratulations, bigboy!

With care in re-tightening, you may have a permanent repair!

If not, the other options for repairing a stripped drain plug hole (e.g., inserts/welding/drill-and-tap for larger plug/etc.) remain available to you.

Way to go!
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