jwg744@sbcglobal.net 0 #1 Posted July 19, 2020 toro wheelhorse p216g 416 starts real good runs for 7 to 10 min. then stalls like you turn key off. replaced fuel pump and coil still does same thing. Share this post Link to post Share on other sites
oliver2-44 10,781 #2 Posted July 19, 2020 You've found the friendliest most helpful site for you and your wheelhorse. I've just got older horses with Kohlers. Someone with experience with something closer to yours will be along shortly. A few thought tho: You might start it with the gas cap cracked loose and see if that makes a difference. Sometimes the vent in the cap gets plugged and the horse will run until the fuel pump creates a vacumn in the tank and engine dies. This relieves vacumn and they start again. If you electrical connections look rust, disconnect one at a time, clean it, coat with silicone grease and reinstall. Be sure and clean and tighten the grounds to the engine and chassis. Also check the fuse block and its connectors. so0metimes just doing a good maintence on all the electrical connections eliminates the gremlins. 4 Share this post Link to post Share on other sites
Tuneup 1,452 #5 Posted July 19, 2020 I hear you, jwg. My 516H stalled at certain angles. First it was on uphills, then running on the side of a hill. This lasted for two or three outings. Checked wiring for chafing. Made no sense. Nothing since. For these engines, coil breakdown or the trigger under the flywheel are key in the ignition circuit but check all grounds and the wiring carefully. You could always hard-wire the coil to the battery to see if the stall goes away to bypass the wiring. You can run open carb and spray a little Gumout in the throat just before a stall to check if it's fuel related. It should be easy - it almost never is....good luck! Share this post Link to post Share on other sites
peter lena 9,313 #6 Posted July 19, 2020 with the replacement of the fuel pump , i would say electrical, most likely a wire chafing / shorting out. also check fuses , and replace ,even if looking good . is engine block grounded to battery dash ground point ? i would sand and clean every electrical point and add dielectric grease to insure conductivity . if you gumout or seafoam that carb throat , one hand on throttle linkage , the other hand palm on carb throat at speed to suck thru that cleaner , that really helps , you could also drop the carb bowl to clean out . grounding at key switch is vital also . let us know what you find , pete Share this post Link to post Share on other sites
lynnmor 7,858 #7 Posted July 19, 2020 Check the 9 pin connector near the battery, they often burn the contacts. Check gas cap as above, but that would be rare on your type of cap. My best guess is that the ignition module under the flywheel is heat sensitive and needs replaced. Share this post Link to post Share on other sites
