Carb cleaner burns but not as well as gas.This B&S 5 hp model 130200 engine is on a Roto-Hoe Cut'N Shred Shredder, Model 500. If the rpm’s change, that means it is sucking air/carb cleaner in through a leak. Another thing to try would be to spray some carb cleaner around the outside of the carburetor when the engine is running. I think there was an issue with that solenoid but never could identify just what. Ended up with a third carb off another engine (these are old lawn mower engines) and cured my problem. Found main jet that is fed through the shut down solenoid seized in the carb. Started going deeper into the original carb. Finally tried a used carb off an identical engine on my other splitter. Took carb apart several times looking for dirt. Ran it for a few years this way until it got worse. Would only start cold by squirting fuel in carb. Had a Briggs Vanguard 16 hp on my splitter that did that very thing. I think it is possible for the solenoid to stick in a position that would allow some fuel through if there is enough vacuum like when the engine is running from gas dumped in the carb. Fuel stabilizers are not that effective in my experience. I do that to avoid stale fuel issues in the carb. I cut the fuel at the end of the day and run it dry. Pull the fuel line off the engine after the fuel filter and run the pump, and you should see plenty of fuel run out. The half full fuel filter is not a problem as long as you are using the right filter. A new carb is about 300 so try to save it first. The seals in mine were way old and needed to be scraped off and replaced. If that doesn't do it, pull the carb and give it a thorough cleaning. There are wiring diagrams in the Service Manual for your engine which are available for download at. It needs a good solid ground to function properly, so remove the 2 screws and clean everything well and maybe coat the ground contact points with di-electric grease before reinstalling.Īlso check your ignition key switch and make sure it is providing the power to the solenoid. You can trace the wire to it and make sure it's not shorting out. I'd first check the fuel solenoid as others are suggesting. I've had a similar problem and it was pretty maddening. These are a few things to look for from my experiences. When cold the mating surfaces leak by and when warmed up the gap (leak) seals up some. and manifold (bad gasket) could give similar issues. I have seen those get corroded and clogged, but usually on an engine that has set for a long period with old fuel in the carb. This solenoid is designed to shut off the fuel when the key is shut off to not allow fuel to be drawn in when engine is shutting down. If the unit has an electric solenoid on the bottom of the float bowl, see if it has 12volts going to it with the key in the run mode. that is either blocking the needle valve from opening or something in the float bowl that is blocking the fuel from entering the main jet. If all is good from there, I would suspect there is contamination in the carb. Remove the fuel line from the engine side if the squeeze bulb and see if it will pump gas into a container. Next I would see if your squeeze bulb is actually pulling fuel out of the tank. Hi gump, Have you made any changes to your fuel tank lately? Sounds like you could have a venting problem.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |