SlammedRanger 1,556 Posted September 7, 2020 1 hour ago, Dude22573 said: Do you run a filter? Im not sure there is enough room for one between the tank and carb. All 400ex carbs newer than 04 have a screen in the carb inlet tube. Should look like this 2 1 Share this post Link to post Share on other sites
Fishfiles 20,145 Posted September 7, 2020 Mann Filters sells the fuel filters that oh400ex mentioned , 90 degree barb on one side , or even both if needed , I have seen them at my Donaldson filter dealer 1 1 Share this post Link to post Share on other sites
Dude22573 9 Posted September 8, 2020 4 hours ago, SlammedRanger said: All 400ex carbs newer than 04 have a screen in the carb inlet tube. Should look like this I did clean this one while I had everything apart. 2 Share this post Link to post Share on other sites
SlammedRanger 1,556 Posted September 8, 2020 That should be all you need bud. There is a filter in the tank on the top of the petcock. And then this one as a last line of defense. Those lawn mower style filters IMO have always been alittle over kill. And they have a tendency to get restrictive over time. 1 1 Share this post Link to post Share on other sites