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Im sure its tranny fluid, Bel Ray 80w red color. I use the SI7 2-stroke oil that is blue.

I did replace the tach o-ring when I thought that was the initial problem. It does seem to be a little more after it ran than just sitting. I also replaced the neutral switch, but I will double check that when I get home. I am willing to bet the oil drain plug gasket is not in good shape, I drained the oil from it a week ago and remember thinking to myself that I need to replace that. I hope it is that simple, but I will go back and double check the shift shaft seal before getting the UV kit

Thanks will update when I learn more - or if I get even more confused!

All, I have had this oil leak for years now. It is always just a small amount and I drove it fine for a long time. Figure I should get to fixing it - but have no idea wheres its coming from. Most of the bike has small amount of oil on left side with kickstand down so it could be from anywhere. Anyone ever used the UV dyes? I just drained the tranny fluid as much as possible and it seems the little that is left in is somehow seeping out a bit. Seals were all replaced about 5 years ago - how long should they last?

I run only Bel-Ray Gearsaver

Following the advice of a very wise man who told me back in 2010, "Bel-Ray Gearsaver 80w for street (75w for race bike)"  8)

I'm with you Russ, I only use Bel-Ray 80w in all my streetbike builds...except in the race bikes I use 75w for the most HP I can get.
I have best R&D Motorsports race prepped trannys and when you spend $600 on this, the most expensive oil is cheap!
Ed, if you want the tranny to last, just use the belray 75W. I changed my transmission oil every 2 race weekends. (200-250 miles)
I put 3 years of hard road racing on my transmission without any failure's.
Chuck

Hi Chuck, I think you know the "very wise man" I referred to in my previous post!  ;D

Chuck helped build my bike years back, probably doesn't remember it has been so long. He told me the same thing, and I have listened and never had an issue either.  ;D

Same as you. Thanks m in sc! Been lurking here asking questions from time to time for a LONG time.