700 Sportsman carb fuel problem
#1
![Default](https://atvconnection.com/forums/images/icons/icon1.gif)
This weekend when riding my atv worked awesome for one day. Second day I was riding and after about 6 miles when I went I let off the gas my atv quit and backfired. When I went to go start it, it would not start. After letting it sit for about 15 min it fired right up. It ran great for about 3 min till I let off the gas then same thing. It will run or start up and run fine for about 3 min then start to run ruff and dye like it is not getting fuel. I have replaced the plugs and put in fresh gas. I think it is the fuel pump, however have you quys experienced this before. I think the vacuum fuel pump is not making enough vacuum. Please help me out on this one.
Thanks much
Thanks much
#2
![Default](https://atvconnection.com/forums/images/icons/icon1.gif)
Mine acted similar, tried a new pump, plugs ect, no help, finally saw a worn spot in the breather line from the engine to the air box, removed the whole line, plugged one end and blew through it, it had a pin hole in the rubber hose, replaced that piece of hose and it runs fine again, hard to believe but true, check your vent tub from motor to airbox.
#3
![Default](https://atvconnection.com/forums/images/icons/icon1.gif)
This weekend when riding my atv worked awesome for one day. Second day I was riding and after about 6 miles when I went I let off the gas my atv quit and backfired. When I went to go start it, it would not start. After letting it sit for about 15 min it fired right up. It ran great for about 3 min till I let off the gas then same thing. It will run or start up and run fine for about 3 min then start to run ruff and dye like it is not getting fuel. I have replaced the plugs and put in fresh gas. I think it is the fuel pump, however have you quys experienced this before. I think the vacuum fuel pump is not making enough vacuum. Please help me out on this one.
Thanks much
Thanks much
Trooper
#4
#5
Thread
Thread Starter
Forum
Replies
Last Post
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)