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Update: I drained the trans. Opaque fluid and 24 ozs came out. So about 4 ozs short. Very little metal if any on the magnet. An O ring was on the plug and intack but it looks like the tech added teflon tape (white something) to the threads and either never removed the O ring or added a 2nd. What I don't get, if the drain plug was the source, then why is the left side rear mostly free of oil? The belt is clean, the slip on and under the bag is all clean. However, the right side rear, the slip-on is coated underneath with oil along the length and the underside of my bag was coated with oil.
I cleaned up the underside and inspected around the drain plug. No cracks. I rechecked the oil, it's at the proper level given the big is on a stand. I have not opened up the primary yet as I need to pick up a gasket and a quart of 20/50.
I'll pick up an O ring ++ tomorrow and fill up the trans and go from there.
Try keep you bike upright like with choke or some blocks under kickstand overnight or at least for rather long time. If you got no or significantly lower leak upright it might be a sign you've got a transmission main gear seal leak. Usually it leaks bad while bike is on a kickstand. Most reason of it is a drive belt overtight.
You got to love how people reach out for answers on here on various oil leak questions, but are too lazy to bend over to try to figure out where the oil is leaking from.
I think most take 32 oz I believe, which would mean 8 oz lost, if that's what yours takes and that's what dealer put in it, I don't know. I'm interested what's in primary. You don't have to drain it, just check it if you want. Most don't change gasket every time.
It's hard to tell from the picture but the threads on that plug look strangely worn. It's possible that it just has teflon pipe dope (same stuff I use and the factory uses) on the threads and that's making it look different.
I believe my trans takes 28oz's so 4oz's low, which as Dan89 stated, won't show on the dip stick. Glad it wasn't completely dry....... Still not convinced 4 ozs out the drain plug in 1 hour ride time.
I'll pull the primary plate off later today and report back on fluid level.
When too much teflon tape or paste is used on a drain plug, it gets pushed up underneath the o-ring during installation. This causes the o-ring to get cut, leading to failure and leakage. The OP's photo shows exactly that. The o-ring is what provides the seal, so tape/paste isn't even needed. I don't care what anyone says, and I'm not going to debate it. If you use it, good for you, be happy.
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