'86 K75C - Gas Tank Vent

[2000rsv]

I found a non-key tank fill cap to replace the OEM keyed flap cap.  I'm always concerned with needing a key to open a gas cap.

However, while cleaning up the removed OEM cap, I noticed it appears this is the tank vent.  The non-key replacement does not have a vent.  This has been done in maintenance season so I haven't had an opportunity to run it to see if it caused a problem.

Is this the only vent on the tank?

[Laitch]

Post some photos of the two caps, please. 

All Brick tanks also have a vapor vent outlet located toward the rear of the tank's floor; excess fuel can also exit the tank via that vent. Next to it is a water outlet that diverts water that might accumulate around the tank's fuel cap.

This thread describes an effective way that enables you to open the OEM tank cap if you don't have the key.

[2000rsv]

OEM gas cap


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[2000rsv]

Non-key gas cap.  I'm sure it was made with the best prison labor in China.


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[2000rsv]

I did take the OEM cap apart and clean it up.  There was enough gunk inside that the two pins at the bottom of the lock did not sit properly in the mating holes.

Little dry graphite in the lock.  It works much more smoothly now.  I still like a non-key cap if it doesn't cause any issues.  I have them (different style) on my GSA and K1600 and really like it.

[Laitch]

I still like a non-key cap if it doesn't cause any issues.  I have them (different style) on my GSA and K1600 and really like it.

If it doesn't cause vapor lock or spillage of gasoline from a full tank during a hot day when parked, it should be good to go.