Finally found the fitting for venting the gas tank. Thanks to all you guys for the info.
I used the 10-32 pressure fitting by Du-Bro (see 1st pic) from my local hobby shop. The clear hose was from an aquarium used to pump air bubbles I had laying around the house.
On the cap I used a 5/32" drill bit to drill a hole for the fitting. Then I just used a socket wrench and directly screw in the fitting and make sure to use the washer that came with the fitting. Of course all the innards of the gas cap have to be removed prior to drilling.
Anyway, I wasn't really sure what to put back. But when I was taking the cap innards apart, I managed to break that little round flat rubber thingy that was attached to another plastic piece. That little rubber part that broke off (see 2nd pic) from the round flat rubber piece is the only thing that didn't go back in the cap. That rubber piece that I broke off is probably the one that was blocking the vent hole of the cap.
Looking at the rubber bulb and seeing that pin sized hole, I decided to drill a 3/32" hole to make it breath more. That's it! DONE! (see 3rd pic)
The motor ran good with no issues on one full tank of gas.
I used the 10-32 pressure fitting by Du-Bro (see 1st pic) from my local hobby shop. The clear hose was from an aquarium used to pump air bubbles I had laying around the house.
On the cap I used a 5/32" drill bit to drill a hole for the fitting. Then I just used a socket wrench and directly screw in the fitting and make sure to use the washer that came with the fitting. Of course all the innards of the gas cap have to be removed prior to drilling.
Anyway, I wasn't really sure what to put back. But when I was taking the cap innards apart, I managed to break that little round flat rubber thingy that was attached to another plastic piece. That little rubber part that broke off (see 2nd pic) from the round flat rubber piece is the only thing that didn't go back in the cap. That rubber piece that I broke off is probably the one that was blocking the vent hole of the cap.
Looking at the rubber bulb and seeing that pin sized hole, I decided to drill a 3/32" hole to make it breath more. That's it! DONE! (see 3rd pic)
The motor ran good with no issues on one full tank of gas.