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Posted by Gordo
- July 13, 2016, 17:43:18 PMFirst pic shows no gasket.
Second the gasket over the vent.
Third one shows what it all looks like together.
I've included a bunch of pics from various angles for reference as it seems quite a few have disappeared over the years. This is Canadian bike.
Watch out for all the little "O" rings. I put a towel in the tank to prevent a fishing trip.
Can't seem to get them rotated properly, sorry.
Posted by greenbarn
- July 12, 2016, 10:41:12 AMOh, I saw it all right.... saw it real up close and personal, I did.... 
Posted by CDNRatMan
- July 12, 2016, 10:35:56 AMSorry Big Foot but he is easily distracted, he can not even see a moose on the road.
Posted by greenbarn
- July 12, 2016, 06:30:10 AMQuote from: CDNRatMan on July 11, 2016, 23:26:33 PMHey, you're the one that got us off topic with a geography lesson.Now solve Big Foot's issues.......
I thought we were still working on fuel cap leakage... I don't know if his is the large main cap seal leaking? could be - or could be loose screws inside the assembly, like Trolls. Or evidently there is another mode of interior failure.
Posted by CDNRatMan
- July 11, 2016, 23:26:33 PMNow solve Big Foot's issues.......
Posted by greenbarn
- July 11, 2016, 22:59:08 PMQuote from: CDNRatMan on July 11, 2016, 21:37:07 PM
Ok Moose let me educate you, if "CA" stood for Canada it would have been as CDN but the manual was an American printed book so the "CA" stands for California.
Posted by CDNRatMan
- July 11, 2016, 21:37:07 PM
QuoteOk Moose let me educate you, if "CA" stood for Canada it would have been as CDN but the manual was an American printed book so the "CA" stands for California.So that explains the "CA" on the drawing..... Here I thought maybe it was for CAnada...
Posted by greenbarn
- July 11, 2016, 21:16:15 PMSo that explains the "CA" on the drawing..... Here I thought maybe it was for CAnada... 
But seriously, even so, I've thought more about this. My screws were not loose - I checked them about a month ago, after I had fuel run down my let twice after filling up. Maybe I was over-filling, but if so I've been over-filling the whole time I've had the bike. I (used to) fill to about half-way up from the "baffle" at the bottom of the fill-neck, to the top of the fill neck - on the side stand, of course, so when you tip it up, the right side gets more full- undoubtedly splashed up against the fill cap. The main cap gasket appears to be fine, so I thought perhaps gas is leaking through the innards of the cap, and out through that hole (which goes to a drain line to the ground). So, maybe if it had a rubber gasket on that nipple, it would drain to the ground, not down the side of the tank.
So I took the cap apart again tonight (I had taken it apart a month ago), and I still do not see anything wrong. Of course, it hasn't leaked since I took it apart last month --but then again, I've been careful to only fill it to the bottom of the fill neck.
SO there must be more than just loose interior cap screws that can cause this problem - and after seeing the innards of this thing again, I can see it's very complex. There are no less than 3 check valves, of sorts, numerous chambers and passages. It seems WAY more complicated than it needs to be - rivaling the complexity of some modern EVAP and other emissions systems on automobiles these days.
So having found nothing to fix on mine, I will install the CA seal, in hopes that perhaps if something inside the lid is not working properly, maybe there's a chance any leaked fuel will still go to the drain. In the mean time, I plan to continue to fill it lower.
Posted by CDNRatMan
- July 11, 2016, 16:56:36 PM 
now I can sleep.......this must be another thing like the labels we get on items from California, it tells you the following
the following items are known in the state of California to cause cancer or to be hazardous to pregnant or and nursing females. That is why I am staying away from California.
Posted by Troll
- July 11, 2016, 15:53:22 PMOk, ok...enough! It's a California only part, meant to seal the fuel system completely to prevent vapor loss. When my cap was leaking, I got one, and put it on. It goes under the cap hinge, inside the ring...but it didn't help a bit. The screws holding the center of the cap to the cover were loose, and the VERY THIN rubber gasket that is supposed to seal the cap was leaking. I took the cap completely apart (not for the faint of heart) and found the REAL problem!
Posted by greenbarn
- July 11, 2016, 15:29:45 PMMoose, eh? Smart A$$.
From what I can tell, it has to go under the gas cap hinge piece, between the tank and the hinge. Otherwise it would fall off when you open the gas cap. A phillips screwdriver is all we'll need to install it.
If we could just get some kind forum member to snap a picture that still has this little gem installed, I guess we'd know for sure. Sounds like a lot of them have disappeared over the years....
Posted by CDNRatMan
- July 11, 2016, 14:58:49 PMHey Moose check out the picture....for me and let me know....
Posted by greenbarn
- July 11, 2016, 11:39:47 AMI just ordered 4 of them from Partzilla. $4 plus shipping -- $5.85 each with the shipping split 4 ways. I need 2, so if anyone needs one, I can either bring it to Wisconsin (assuming I get them in time) or I'll drop in the mail.
Posted by JagLite
- July 10, 2016, 23:14:53 PMHuh? 
Well look at that!
There is supposed to be a seal there... 
No wonder my tank seeps a tiny bit when the tank is full. 
Thanks for asking, and thanks for the answers! 
Posted by CDNRatMan
- July 10, 2016, 23:02:45 PM now I have to get dressed and go out to the shed at o dark hundred and see if there is anything in mine.....thanks GB......