Has anyone drilled the stock tank cap to accept a vent so the two cumbersome vent hoses could be discarded? I took a cursory loot at mine tonight but I didn't disassemble the lock assembly which is where the vent hose would have to be routed as that is the only path to the filler hole for the tank.

 

It may be helpful to look at the IMS aftermarket tank setup, which eliminates some of those lines and vents through it's cap. It's available here:

https://www.imsproducts.com/Tech/index.cfm

That said, you'd want to ensure that in a fuel overfill or tip over you're not spilling fuel onto something hot, because that obviously could be bad.

 

My rides are not long enough to consider a larger tank so I just want to see if the stock cap can be modified to accept a vent, then eliminate the long vent hoses under the tank. I will pull the assembly apart and see if I can snake a vent hose through the assembly and into the tank opening.

 

I wasn't actually suggesting installing an IMS, just was saying their install instructions would provide guidance on which line is which and how to cap off and connect to the canister if you're still running one since the IMS eliminates some of the lines.

 

OK, well, I was able to take the cap apart (two screws), locate an area behind and to the left of the spring loaded wedge shaped lock where I drilled a hole large enough for a vent tube. Part of the hole went into the radius of the lock assembly but not far enough to cause any problems. I aligned that hole with one through the upper hinged cap assembly still attached to the tank, step drilled everything until it was large enough for a vent line, deburred it all, installed all the removed components, added RTV sealant inside the cap assembly where the holes were and ops checked the lock. It works just as it did before the modification. The vent in the tank protrudes about 3/4 of an inch.

Next step will be to shorten the existing vent hoses under the tank and tie them together and that should do it.