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General Category => Maintenance => Topic started by: stou on March 24, 2020, 09:22:31 AM



Title: Gas tank question
Post by: stou on March 24, 2020, 09:22:31 AM
When we look under the gas tank there's a kind of fitting in the middle of the tank. There was nothing on this fitting when I took the bike apart. I wonder what is its use?

(http://stoudesign.com/MotoWork/FJ76.jpg)

On the parts diagram, I can't see any hose going at this place.

(https://images.cmsnl.com/img/partslists/yamaha-fj1100-1984-usa-fuel-tankfj1100ln_bigyau0036e-7_1323.gif)



Title: Re: Gas tank question
Post by: Firehawk068 on March 24, 2020, 10:03:53 AM
I believe it goes to the emission "charcoal" canister on models that were so equipped?
"California" versions in the states had it. Other countries might have as well?


Title: Re: Gas tank question
Post by: stou on March 24, 2020, 12:25:27 PM
Since Firehawk068 is not sure about that, can someone confirm this?

Thanks Fireawk068!


Title: Re: Gas tank question
Post by: aviationfred on March 24, 2020, 07:01:11 PM
The nipple on the tank IS for the emissions that were part of the California specific models.

If you peel back the heat shield, you will see that it is actually a valve. A hose attaches to it the goes to a T fitting then hoses go to the Charcoal canisters. Look at #29 and #36 in the drawing.


Fred


Title: Re: Gas tank question
Post by: Firehawk068 on March 24, 2020, 09:05:42 PM
Since Firehawk068 is not sure about that, can someone confirm this?

Thanks Fireawk068!

No worries!
It looked like a "California" spec tank to me, but I saw you were from Quebec. Didn't know for sure if Canada got emission equipment or not?


Title: Re: Gas tank question
Post by: charleygofast on March 26, 2020, 07:52:02 PM
This is awesome! I'm in the middle of a tank swap on my 84 and my new to me tank has this fitting. I was just about to post a what is this....then I found this post, timing is everything.                                                                                                                                                                                                                     Charley


Title: Re: Gas tank question
Post by: stou on March 27, 2020, 12:09:34 PM
Here in Quebec, I think we don't have the emission equipment. At least I don't have it on my bike. Maybe all gas tank are the same but the fitting is only realy used in California.