I have a Huskee riding mower. It had been stalling and had no juice when trying to restart it. I replaced the ignition with no luck. I started checking everything with a continuity tester. I found a blown 20 amp fuse next to the solenoid. After replacing it I tried starting it and it rolled over. I pushed it out of my garage and tried starting it again and nothing. I rechecked the fuse and its OK. What could be the problem now?

Cindy, try running with gas cap off , if it runs OK then the caps vent hole is plugged, either try and clean vent hole or replace cap. It could also be a dirty carburetor which would need torn down and cleaned/rebuilt. Check the attached links,instruction and guides, Good luck
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Engine starts and then shuts down

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on the front of the engine under a cover should be a fuel line going to it may have to take the left fender of to get in there

Try rotating the engine manually to check for any binding. I would also check the amp draw on the starter.

Could well be a worn belt, or too tight. Check the tension on belts for too much play. Also look for obstructions in deck, like old grass or debris.

That doesn't sound good... make sure the wires have good connection to the battery terminals. If its not that then your gonna need a new starter...

Probably not. The machine doesn't need alternator to run the mag fires the ignition, the alternator only replaces juice the battery used to start it. Eigther ignition unit failed or one of the safety switches. If I had to bet, my money is on safety switches.

Check simple things first - as soon as engine dies, remove gas cap and attempt to restart. If successful, the vent is blocked, causing a vacuum to form in the tank. Effect will be more pronounced when tank is full.

Usually when the motor stalls when blades are engaged on any mower it is the carb that needs cleaned and rebuilt. The motor isn't getting enough gas to handle the load.