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I have a 2001 yz426. My question is why is there oil leaking from the decompression lever Bolt. The bolt had been stripped out so I tap dyed it for the fix but now when I start it oil comes out not sure if it did that for the previous owner.

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It is caused by poor sealing around the bolt you have fitted. Try some PTFE tape on the thread. The oil is because it is a two stroke and it is leaking.

Posted on Aug 12, 2017

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I 100% Agree With using ptfe tape you always want to use this type of tape on any threads with a liquid substance leaking out of a bolt !!

Posted on Aug 12, 2017

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6ya6ya
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ahhsoo69
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SOURCE: I have an oil leak

HELLO. YES THE BOTTOM OF THE OIL PAN HAS BOLT'S THAT ARE UNDER THE FLY WHEEL.THAT'S WHERE THE FRONT SEAL IS.!! ONE MAYBE TWO THERE.!!! THEN THEY START TO GO ALONG THE SIDE'S OF THE OIL PAN ALL THE WAY TO THE BACK OF IT THEN THERE ARE MAYBE 4 THAT GO'S ARCOSS THE BACK THERE.!!AND NOTHEY DON'T COME IN CONTACT WITH THE OIL FLOW'S THERE ON THE OUT SIDE OF YOUR OIL PAN. U JUST MIGHT NEED TO TIGHTIN THEM UP.? OR U MIGHT HAVE ONE OR MORE MISSING. CHECK TO SEE IF YOU HAVE A YOUR BOLT'S AROUND YOUR OIL PAN, OK LET ME KNOW IF THIS HELP YOU "GOOD LUCK"

Posted on Jul 30, 2008

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SOURCE: after removing oil sump to

you are using very thick oil to start with, it could be the problem try 5\40 if you can flush the system before oilchange,.

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SOURCE: front spindle caliper mount holes stripped,any fixes

they make heily coils to either down one size or up one size .make sure you put red lock tight on heily coil when you instal in the striped hole.make sure holes are CLEAN.

Posted on Feb 21, 2009

  • 740 Answers

SOURCE: Oil leak

If it the oil filter housing it can be changed if its the gasket it cab be changed too, Check and make sure which it is first then we can fix, contact if you need more help and thanks for using FIX YA.

Posted on Mar 20, 2009

crayzeetrayn
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SOURCE: stripped head on a brake caliper bolt

I would try either vise-grips if you can get at it otherwise you may have to get a set of easy-outs. They work by you drilling a hole into the bolthead and then as you turn them they tighten in the opposite direction thereby loosening the bolt .. be sure to put alot of penetrating fluid wherever you can to get in and around the bolt shaft and threads ...

Posted on Mar 28, 2009

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Thermostat housing bolts wont tighten up


Pull the housing off and check if the threads are stripped where the bolts screw in. On aluminum, threads can get easily stripped from over tightening. A shop can use tap and die tools to rethread the holes. It shouldn't cost too much.

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I wonder if the sealing washer that is on this plug has been lost. These washers are usually aluminium or have a rubber insert, and without it there you are trying for a steel on steel seal.

A stripped thread can often still be backed out, that's no guarantee. Try for a tightening torque of about 15-20 ft-lb and if you get to that it isn't stripped.

Don't worry if it IS stripped, you can buy anoversize self-tapping plug.

http://www.autozone.com/repairinfo/common/repairInfoMain.jsp?targetPage=productsHowToInspect&leftNavPage=productsHowTo&pageId=%090996b43f80a011f7&subtitle=replace

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Do you mean it just turns without backing out of the thread? It sounds like the thread in the oil pan is stripped due to over tightening. If you can wedge a chisel or small screwdriver under the bolt head and lever outwards while turning, it may engage the thread and come out.

If not it will have to be drilled out and the remnants removed by tapping the hole to the next largest size. There are kits available for fixing this, as it is very common. Some use a helicoil insert.

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New lug nut installed at Walmart to remedy oil leak caused by stripping is not working. Still experiencing leakage. Would like to avoid buying a new oil pan and lug nut. Read that a self-tapping oil...


That is a judgement call on your part. The self tapping bolt will put a small amount of metal shavings into the oil pan where (hopefully) the magnet inside used to collect filings from engine wear in your oil will grab them. If it doesnt, the metal shaving could cause engine damage. Bring old bolt with you to get the closest possible match. (There is also no guarantee it will tap/seal correctly or withstand being removed/re-installed anfter many oil changes.)

Best solution is to drain oil, remove oil pan, use a threaded insert to restore the bolt to the original one's size and get a new bolt of the o-ring sealing type. This you can do yourself, threaded insert kit + gasket+bolt +oil around $50

Please rate this answer if it helps! Thanks, Mike

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Either or are possible. This should be done professionally but if u want to check the threads, Get the exact bolt size including thread size (specs should be on new part, get from OEM) Try hand threading it into the crank (GENTLY) use a ratchet to feel for a stripped thread. You can do the same with a tap from a tap & die set. If is well, use threadlock on the new hardware threads. DONT FORCE IT, IF IT'S NOT STRIPPED TOURQUE TO SPEC, IF IT'S STRIPPED IT'S STRIPPED. Good luck

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2 Answers

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If you use a good pair of vise grips you may be able to get it off if you adjust the visegripes just beyond your ability to clamp them and then proceed to clamp them shut with a large pair of channel lock pliers, if this does not work drill the appropriate size hole through the bolt and tap in a large easy out bolt extractor into the hole drilled and proceed to use a star socket
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