I have a 2010 Goldwing with a Roadsmith trike kit. The adjustable preload has not been working. I removed the pump and motor and replaced the plastic line with the braided metal line. I got the air worked out of it and was checking to make sure it works correctly and the preload cylinder started leaking know. I have been looking around the internet and it looks like you can only buy this has a kit , pump, damper and shock all in one. anyone have any ideas on fixing this.