I had a problem with my Dump Valve spring being a bit weak for my new FMIC.
Long story short, I called Baileys Motor Sport and had a chat with Bruce and Neil. They said that for £38 I could send it back and they would inspect it, replacing any parts that needed and return it next day.
Here's a picture of mine: The only part that they sent back was the lid. They replaced everything else and uprated the spring, and posted it back next day special delivery. It also gets a new 12 month warranty!!
It's nice to get service like that. Thanks Baileys...
