I have a Roadsmith trike kit on my gl1800 that was installed in 2016. Upon until the last couple times I used the aux it didn’t transfer vert fast. In past it took about 12 minutes to transfer. Today, couple friends and I road 300 miles round trip. When we started back 10 miles from our destination I flipped on the aux. main tank light was on and aux didn’t get above 1/2 tank. It stayed at even level till I got closer to home when it started losing ground. 15 miles from home and aux on the fuel light came on. The aux was on for almost 1 hr and 45 minutes and never gained on tank level. It was still switched on when I pulled into my driveway. Is there a filter or something that needs attention? Would a small blast of low air pressure back through the feeder line clean it out?
Any help appreciated.