White Shadow RZ fuel cap mod

[Kawtriplefreak]

I got tired of buying gas caps trying to fix this fuel slosh issue. The ZETA cap I put on the Gray Ghost that fixed the issue is unobtaimum. I have searched everywhere. Tried to contact ZETA directly in Japan. They don't reply.
In desperation I shelled out $90 for a factory Yamaha cap. Same results if you fill it too full (within an inch of the top) it pukes gas out of the key hole.
So I decided to modify one of my Chinese caps.

5/16 drill bit and the lock cylinder came right out.

A piece of 3/8 fuel line is a perfect friction fit and the same $5 vent valve I put on the Gray Ghost fits perfectly inside the 3/8 hose. Pressure tested no leaks.

[TeeZee]

If you see venting issues, this might help - https://www.youtube.com/watch?v=DCLOyI5Jc94

I had Chinese cap and had to switch back to used on off Ebay. Ken did a good explanation this one.

[Kawtriplefreak]

I wasn't having a venting issue. I was having a fuel spillage issue. Both of my tanks also had the no lead nozzle baffle or whatever its called removed before I got them. I have no idea if that is a contributing factor.

[2steve]

There is an unleaded nozzle baffle in mine and it still drools gas out if you fill it to what I call normal full.

[Kawtriplefreak]

Yeah, it has been a never-ending annoyance for me. The ZETA cap solved it on the Gray Ghost. I can fill it up completely and no leaks. I am trying to find another one. I am emailing with web bike in Japan to see if they can come up with an answer. My homemade solution cost about $20 total. I am going to test ride it here in a few.