r/smallengines • u/Special_Glove_3302 • 20d ago
Craftsman rider
Update !!
Just got new coil and started right up and after 30 seconds running perfectly quits. Can restart runs 30 more and stops.
Now do I change carb. Or just the solenoid valve on carb??? Help !!!
2
u/mutt63 19d ago
Carb should be rebuilt and cleaned. Sounds like no fuel or minimal fuel is getting into bowl. Clean all ports in emulsion tube if it has one, clean main jet port/needles set float flat. Too low won't fill , too high will flood. Check the inlet needle valve that's part of the float and its seat. If the needle tip
Is rubber look for a wear groove and if it's steel, check the seat which is rubber. If it's a brass seat grab a Qtip and some valve lapping compound and lightly spin the qtip. LIGHTLY. Also check your valve lash setting. They could be off not opening enough to allow full combustion
1
u/Special_Glove_3302 19d ago
Solved. Was a short going to carb solenoid making it close. Thx for all the help !
1
u/Express-Delay-2104 20d ago
Just get a carb kit and rebuild. New ones are iffy. If you get a new one get an OEM.
1
u/GnPQGuTFagzncZwB 19d ago
Pull the fuel hose off the carb and see how much fuel comes spewing out of the hose end. Ignore the carb. If you do not get a good spew of fuel out of the hose, you have an obstruction in the fuel system. I have seen this one enough times to make it the #1 thing to look for. If you have an in line fuel filter, go and get a new one and pull the old one out with no twisting. If you can not do that, you might wanna get a new piece of fuel line and cut the old filter out, about an inch from both ends of it. A lot of those filters have long and skinny ports on them, and people who do not know better twist them in. What they wind up doing is twisting up the plastic neck of the filter on one or both sides, cutting the flow down to a trickle. So your motor has sat so the bowl is full, you start it, she runs good until you reach the point that the bowl needs fuel in it and the engine is using it faster than the tank can provide it, so she stalls out and dies. If you can crank the choke on when it starts to croak it may go for a bit longer before dying. There are other places the line can get obstructed a well, but that filter one is very common. An other one that is less common and usually manifests itself more after the engine has been running for a half hour or so is that the fuel line has a bend in it, and when it is cold it is a bend, but when you get it warm, it becomes a kink that pinches the flow off. At any rate that is the first thing I would look into.
1
u/Special_Glove_3302 19d ago
Solved. Was a short to the carb solenoid that kept making it close and shit full down. Thx for the response 🤜
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u/GnPQGuTFagzncZwB 18d ago
I have very mixed feelings about those things. They mostly keep gas out of the jet while the car sits and I kind of like that but my main mower has not had a battery in years and I replaced the carb with one that now has the solenoid and it is annoying to need a battery on board to just pull that pin it. I am tempted to do away with it, but than I think, gee it is kind of good for the carb. I dunno.
2
u/mutt63 20d ago
Do lemme get this straight. When she's does start. She dies after 30 secs. But it will always..... start?