QuestionI have a couple Craftsman weed trimmers. Model # 358-795800. They use Walboro carb WT 628. I have rebuilt the carbs and they both start and idle fine but die when i try to take the choke off. If i give it gas when the choke is on there is no reaction. I have replaced:
Carb kits
Screen in carbs
Primer bulb
Fuel filters
Fuel lines
Cleaned carbs and blown out all orifices with compressed air.
Made sure all parts are intalled right.
I am not completly sure about fuel lines being hooked up correctly. Small line is going from tank to bottom diaphragm copper in line. Large line from tank to bulb then to top carb copper line in. Any ideas what is wrong?
Answer When you go through the carbs, you need to remove the needle/
spring/lever, and blow out that passage, and visually verify it is
clear by holding it up to a light.
The primer buld is acually a purge, which pulls fresh fuel through the carb, pushing out the air, and the excess fuel returns to the tank.
On the carb, it has 2 covers, one held on by one big screw, and another held on by 4 little ones. The fuel line with the filter goes to the nipple closest to the cover with 1 screw, the other one goes to the primer bulb. The primer bulb has a check valve which
allows the fuel to go one way, so it goes to the tank.
