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Enduro Engine - 2 stroke Cylinder, Piston, Tranny, Bearings, Clutch, Pipes & Silencers, etc.


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Old 09-22-2018, 06:15 PM
Gasgas239 Gasgas239 is offline
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Default Oil drain bolts?

Hey guys, I just picked up a used '03 ec250 I love the bike I was checking things out an noticed there were 3 bolts on the bottom of the cases I'm assuming one is the oil drain bolt but what are the other 2?

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Old 09-22-2018, 09:34 PM
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The one in the back right side is the oil drain.The front right is the crank drain.The front left was added by a previous owner and is for assembling the motor at the factory, some people put a bolt in it because it is in the magneto cavity.
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Old 09-23-2018, 07:56 AM
Gasgas239 Gasgas239 is offline
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Oh gotcha, wonder why they wld put a crank drain bolt in?
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Old 09-23-2018, 09:57 AM
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From the factory there's just a whole. Some people like to put a bolt in there to keep water from coming in.
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Old 09-23-2018, 05:41 PM
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Quote:
Originally Posted by Gasgas239 View Post
Oh gotcha, wonder why they wld put a crank drain bolt in?
I've always wondered why other manufacturers haven't!!!

Bloody useful when you accidentally fill the crank cases up with water. Much easier to drop a bolt out of the case than to turn the bike upside down and pump it out the spark plug hole.
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Old 10-03-2018, 08:51 AM
Gasgas239 Gasgas239 is offline
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I drained the oil to change it an the drain bolt didnt have a crush washer or any kind of oring is this normal for gas gas or the previous owner just leave if off?
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Old 10-03-2018, 09:05 AM
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03 should have a O-ring
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Old 10-03-2018, 09:27 AM
Gasgas239 Gasgas239 is offline
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Is that something I can order?
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Old 10-03-2018, 12:33 PM
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Yes but you could just go down to the headwear store and get some. I don't think they are hi temp
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Old 10-03-2018, 05:58 PM
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Ok thanks for the info
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