Fuel Kill Solenoid Retrofit (NOTE: INFORMATIVE BUT NOT A REVIEW)
Model Year: 2009
Kioti DS4510 Replacing Fuel Kill Solenoid With Traditional Pull Cord Problem - Kioti won't start because Kill Solenoid malfunctions. It shorts internally and blows the 30 Amp fuse so the engine gets no fuel (Third time failing on my Kioti). The Kill Solenoid is spring actuated with no power so unmount Kill Solenoid from the engine and it will run so you can drive home. Use a thin cutoff wheel to remove the rear flange to free the disk at the back of the solenoid. Remove the plunger and the internal spring. Discard the plunger slug and the spring. Build a 3/16th inch shaft 5" long so it will extend 1/2" out of the solenoid body when the fuel valve is held shut-off (actuated). This shaft needs to be peened over on one end, then slide a washer onto the shaft followed by a spring. This spring will pull the shaft away from the fuel shut-off valve and allow the engine to run properly. Note if you can't find a 3/16" shaft, weld two common 3 1/2" nails together point to point and cut this 5" long. Leave one head on the end of the shaft instead of peening the end to support the spring. Drill a 3/16" hole in the center of the solenoid disk you removed. With the solenoid empty (no spring or slug), insert the rear disk back onto the solenoid so the O-ring seal seats into the solenoid. Duct tape this disk securely to the solenoid. Now remount the empty solenoid to the engine. Insert the 5" shaft through the disk and test that pushing the shaft forward will move the shutoff valve all the way forward. The shaft should move back and forth smoothly and bottom out when pushed all the way in with about 1/2" extending beyond the solenoid disk. Cut the non-peened end of the shaft to length to allow this. Now, using 2" wide 3/16" steel strap, drill 2 holes 1.5" apart at the outer edge so it can later mount on the existing 2 bolts above the solenoid (See Photo 6). The bottom section needs to be 2.5" long, then bend a 2" section up 90 degrees, then bend a 2" section to the right 90 degrees, and then bend a 3/4" section down. Drill two holes for 8-32 bolts in the 3/4" section. See photo 6. Mount this piece on the engine. Then from the same strap, cut a piece 3.5" long and drill two holes for the 8-32 screws so this flat piece hangs down to touch the 3/16" shaft you added to the solenoid. The hanging piece is bolted loosely so it can flop left and right and move the new solenoid actuator in and out (see Photo 7). Drill a guide hole in the left side of the new bracket bolted to the engine as shown in Photo 6 so a pull cord can reach the flap. Insert a grommet in this hole. Drill a hole in the hanging bracket in line with the guide hole to insert and secure a pull wire so it can be pulled to actuate the flap and solenoid pin to kill the fuel. Drill a hole in the Kioti firewall 1.5 " above the top throttle cable hole and put a grommet in that hole. Then run a wire from the cockpit and attach to the flap as shown in Photo 6 and 7. Pulling on the wire from the cockpit will kill the engine. Now it's as reliable as the 1960's vintage tractors. I love this tractor. Enjoy - Garson
Pros: Great power, fuel efficiency, traction, loader strength, transmission
Cons: Kill Solenoid failed 3 times before converting to manual stop
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