Fab Ads
Topic Options
Rate This Topic
#140131 - 01/10/18 12:08 AM Oil leak and weird noise
Dbarry Offline
Junior Member

Registered: 11/02/17
Posts: 2
Loc: Colorado
I have a 1982 xt250. I have an oil leak coming from the bottom of the bike but I can't find where it's coming from. I thought it might be the clutch push rod but I'm not sure. I cleaned up the engine and the area around the clutch rod to see if I could find where the leak is coming from. After I cleaned it I started the bike to get the oil flowing and I walked away for one minute and came back and a decent amount of oil was in a puddle underneath the bike so I turned it off and then tried starting it again and when I did a pop came from somewhere and I don't know what it could be. If anyone has any suggestions or tips please help me. Thanks everyone.

#140136 - 01/10/18 03:46 PM Re: Oil leak and weird noise [Re: Dbarry]
peejman Offline
Platinum Member

Registered: 06/03/13
Posts: 2981
Loc: East TN USA
There's a few locations for typical leaks. The best way I know to find them to clean up the bike and remove the skid plate (if it has one). Then dust the crankcase with baby powder or flour, something white that will soak up the oil and point you to the source of the leak(s).

The pop may have come from the exhaust... unburned fuel building up from sitting and idling. That's really nothing to be concerned with, if that's what it was.
This shall pass, be still and know.
2006 XT225, UNI filter, ProTaper bars, MSR handguards, SS front brake line, Shinko 241's.

#140147 - 01/11/18 12:47 AM Re: Oil leak and weird noise [Re: Dbarry]
Muniac Offline

Platinum Member

Registered: 01/16/04
Posts: 5531
Loc: Montrose, CO
A leak that pronounced should be able to be spotted by eye. And pretty quickly too. On the XT225, the shifter bushing wears and compromises the seal. Also the O-ring on the starter (probably not relevant). Common places for oil leaks. The engine cases have remained tight on our two bikes.
Evolve & Simplify
Be There or Be Nowhere! A Few Adventures & Video

#140182 - 01/12/18 09:28 PM Re: Oil leak and weird noise [Re: Dbarry]
Beaker Offline
Member L2

Registered: 06/26/15
Posts: 214
Loc: Colorado Front Range, US
You might check that the oversized oil drain plug is screwed all the way in, not cross-threaded, and still has it's O-ring. Same with the oil filter cover; there is a large O-ring plus a smaller one on the lower-most bolt.

There is also an oil pressure inspection bolt just rearward of the spark plug; it gets removed for inspection. Seems like a leak there would be obvious but thought I'd mention it.

Hopefully it's something simple and cheap like a worn out O-ring or seal and not a cracked case.
2007 Yamaha XT-225

#140188 - 01/13/18 02:18 AM Re: Oil leak and weird noise [Re: Dbarry]
Muniac Offline

Platinum Member

Registered: 01/16/04
Posts: 5531
Loc: Montrose, CO
Yes I've had wicking of oil from the drain plug do to a flattened O-ring. The threads on the plug are very delicate and easy to cross thread. It's the small spring on the filter screen that pushes the plug away from starting. Tricky.
Evolve & Simplify
Be There or Be Nowhere! A Few Adventures & Video


Web & Site Search
Custom TO Customer
Specialty Resource
Fab Ads
Boardcaster Updates

Board Upgrade: Board upgrade to V7.5.8 has been completed on Tuesday Sept 2nd 2014. This should solve the missing posts problem. Enjoy the new software!

Who's Online
1 registered (rocmoc), 45 Guests and 3 Spiders online.
Key: Admin, Global Mod, Mod
Shout Box

Top Posters
Reggie 11629
alexd 5915
Muniac 5531
Moto Psycho 4684
Az4x4 4098
peejman 2981
kris 2365
Doc250 1643
Paul49 1623
JerryH 1508
Forum Stats
5195 Members
38 Forums
15624 Topics
140245 Posts

Max Online: 149 @ 11/09/12 11:04 PM
Newest Members
Ruddog, whit, greyapron, Radke, Temeku
5195 Registered Users
Su M Tu W Th F Sa
2 3 4 5 6 7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30 31