Oil Leak - what are the common areas ?

This is probably a dumb post, but I promise to update when it's solved.

For the last few weeks I've noticed the smell of burning oil.  On the weekend I changed the oil and the filter and took a closer look.

(FYI I used this wrench to get the oem filter off:
http://www.supercheapauto.com.au/online-store/products/Stanley-Oil-Filter-Wrench-Swivel-400mm.aspx?pid=12565#Recommendations
I have a few different filter wrenches and even bought a cap type, but because of clearance issues, I couldn't get a wrench on it. The above one had it off in 30 secs.  Replaced with K&N with a 17mm nut)

I noticed oil had leaked around the sump, so I cleaned it up with some kero and went for a ride.  But I cannot see any leaks from the sump gasket. And no leaks from the new filter either or the sump plug. But wherever it's leaking from, it's hitting the exhaust and turning into smoke.

What is the next suspect ?.  I'm thinking the output shaft seal ?.  Anyone else had oil leaks around this area ?

Thanks.

Edit: Can someone help me out with the service manual location ? ;-)

Going on a ride one time, when I got to the meeting place I could smell burning oil as you described. Both myself and Spanna couldn't find any sign of a leak or see smoke. When we stood the bike up straight we found the oil level was overfull. Done at the dealership a week earlier.

Even now the bike doesn't use any significant oil between changes

The only time mine ever smoked was after a clumsy oil filter change.
Lots of degreaser was used after each change after that.

Sorry I cant offer any suggestions.

Given it's occurred after an oil filter change, it is certain to be oil spilt on the headers/collector that is burning. Give them a good degrease and wash them off and it should go away. I'm not aware of a 1250 motor that leaks oil from any gasket, unless other damage was done. Cheers.

I should have made this clearer, but I had noticed the smell prior to the oil change, and found old oil on the sump, anyway I'll clean it all up thoroughly next weekend and look for the source ... It's only dripping when the engine is running as far as I can tell.  Only 20,000km, but 2011 model.

buford_t_justice wrote:I should have made this clearer, but I had noticed the smell prior to the oil change, and found old oil on the sump, anyway I'll clean it all up thoroughly next weekend and look for the source ... It's only dripping when the engine is running as far as I can tell.  Only 20,000km, but 2011 model.

 I stand corrected but I think the oil cooler ring at the filter is removable. So its possible "someone" wrenched on that thinking it was part of the filter at some stage.

Just picked mine up from it's 24K service, by the time I was 1/2 way home it was getting that "burnt oil smell", no leaks, just needs a good clean.

BTW, if anyone ever complains about the Bandit seat again, go for a 1/2hr ride on a DR650, the standard Bandit seat (without the lambswool) felt like a plush lounge chair in comparison.

I always put al-foil over the headers before removing the filter.....................saves a heap of cleaning .
About all you can do is clean it thoroughly & go for a ride , the wind can blow the oil from the least expected place .I don't know of any common places other than he usual sump plug or an un-lubed O ring prior to fitting the filter can cause a leak , it's not likely from the tappet cover at that mileage .

I degreased the area last weekend and rode to work, and it's definitely leaking from the final drive, but I haven't removed the sprocket to be 100%.

I've ordered an oil seal from Suzuki, anyone got any tips on replacing the oil seal ? I'm assuming the gearbox doesn't need to be split ?

I think I caused it by adjusting the chain too tight once and was too lazy to readjust it :p

what engine?
If you have had your chain too tight this can cause bearing wear, the pressure is put on the seal causing a leak. I have replaced the seal on the oil boiler.
Screw a gyproc screw in to the seal, pointy not self tapping, and pull it with pliers or multi grips. Tap in your new seal, easy job.

Rick, b1250. Replaced the oil seal yesterday, pretty easy job, I did have trouble getting the old one out with two multigrips, so ended up using longer screws and a claw hammer for leverage. Used the old seal + PVC pipe to assist tapping the new one on.

I had previously been adjusting the chain on the centre stand, but this throws out your slack when it's back on the ground I think.

Ok simple question, where do you think the oil is coming from and why?

Was definitely leaking from the final drive oil seal, suspect from having the chain too tight, as nobody else has reported a leak here. All sorted now.

Good job. 
Glad that you have got it fixed. 
I have learned to err on the side of slack, for my chain adjustment.  They seem to last longer that way.

buford_t_justice wrote:Was definitely leaking from the final drive oil seal, suspect from having the chain too tight, as nobody else has reported a leak here. All sorted now.

Chain tight spots kills output bearings and seals quicker than anything else.
FWIW I run as much slack as I can without making gear changes clunky.