M. Derr Posted January 2, 2022 Share Posted January 2, 2022 Fuel - Air - Spark: I'm having a terrible time getting it started. I've rebuilt the carburetor and the fuel pump as well as having put in fresh gas. I can get it running but only with the amount of fuel I'm priming directly into the carb bowl, about 3 - 4 seconds worth, but it will run smoothly. I think I'm getting fuel from the tank to the pump, but I'm definitely not getting it from the pump to the carb. Shy of pulling the fuel pump (again) and sending it for professional refurb, I'm not really sure what else I can do. I should mention that earlier this week when I pulled it I blew air through all the lines, thinking that perhaps I had some sort of obstruction, so that shouldn't be a problem. It hasn't run since roughly 2015/2016, and it's been hard starting for as long as I've had it, going all the way back to 2010. I could dearly use some help. The carb is a WD0 440S, but I don't believe that's the problem. Honestly, I'm open to a more experienced person coming over if they're in the East Valley of Phoenix (Chandler). Link to comment Share on other sites More sharing options...
TerryB Posted January 2, 2022 Share Posted January 2, 2022 Get a vacuum gauge that also measures fuel pressure. You can use it to measure the output pressure, or the lack of it, of the fuel pump. Link to comment Share on other sites More sharing options...
Mark Shaw Posted January 2, 2022 Share Posted January 2, 2022 Try easy stuff first... ; remove the fuel line from the carb and crank the engine to see if you get fuel. 2 Link to comment Share on other sites More sharing options...
M. Derr Posted January 2, 2022 Author Share Posted January 2, 2022 17 minutes ago, Mark Shaw said: Try easy stuff first... ; remove the fuel line from the carb and crank the engine to see if you get fuel. That would be a negative ghost rider. Definitely not getting fuel from the pump into the carb. Link to comment Share on other sites More sharing options...
Ben Bruce aka First Born Posted January 3, 2022 Share Posted January 3, 2022 If there is a filter BETWEEN the pump and carb, remove same and try. Perhaps picture of the carb area? Unhook the pump outlet line and crank to see if the pump is pumping. Replace the flexible line from the frame to the pump. Are you SURE the pump is not sucking air due to a bad line from the tank to pump. Hook a tank [boat?] to the suction of the pump. Check back. [ plagiarized from Willie]. Ben Link to comment Share on other sites More sharing options...
Oldtech Posted January 3, 2022 Share Posted January 3, 2022 1. Remove line at fuel pump and blow back through line with cap off tank. Should blow bubbles. If line is plugged or has a hole this will help find it. 2. if you can, try another source to the pump as has already been mentioned. 3. if no go, try a line direct to the carb from a gravity feed such as a tank from a small engine. I'm betting on the first one Link to comment Share on other sites More sharing options...
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