What year is the the Sj? Also, show some pics of the carbs and fuel lines would be helpful.
First off remove and replace all your fuel lines. Don’t buy the cool multi colored crap that won’t last a year. There are venders (on here) that carry good quality fuel lines. Remove one line at a time,so you won’t get confused how to put them back on the correct fitting. Buy some good zip ties (small), again not the stuff you find at harbor freight (they are good for other items). Buy new fuel filters at the same time.
The four lines: lf twin carbs, then each line goes to a carb, one is a return, and one has a one-way valve to let air into the tank. lf single carb, then one is a main fuel line, the other is for your ski’s reserve gas.
The forum contains a wealth of info, but ya gotta look for it. Helps to google it, which for the most part directs you back here. Start a thread, so others can help you too.
Welcome to the X!
@JetManiac can chime in
