Pull only three or four times and release the starter cord when the motor sputters. The engine will only fire a few times and then die. Open the choke completely by pressing the plunger all the way in against the carburetor housing. Crank with the starter cord again and the Mantis two-cycle tiller should run.Click to see full answer. Consequently, how do you adjust a Mantis Tiller carburetor?The Mantis tiller carburetors are adjusted using a red and a white screw located behind the air filter cover near the black choke button on the right side of the engine. The red screw adjusts the high-speed setting and the white screw controls the low-speed setting.Secondly, how do you replace fuel lines on Mantis Tiller? Obtain a replacement fuel line kit for the specific model Mantis tiller you have. The assembly consists of a fuel line with filter, rubber gasket and vent tube. Push the end of the new fuel line with the filter attached through the hole in the side of the tank and into the gas tank. Also to know is, how do you grease a Mantis Tiller? How to Change the Grease in a Mantis Tiller Gear Box Turn off the tiller. Remove the retaining pins from both tines and slide them off the axle to access the worm gear housing. Remove the four screws from the cover plate on the worm gear housing with a Phillips screwdriver. Fill the housing with lithium #0 grease almost completely to the top, but avoid overfilling. How does a Mantis Tiller work?Unlike big tillers, your MANTIS Tiller weighs only 20 pounds. So it lifts easily, handles smoothly, tills and weeds precisely. And, unlike other small tillers, it features serpentine tines that churn soil up to ten inches deep. It creates a soft, smooth seed bed, even in problem soil.