20 Most Recent Mantis 2-Cycle Tiller Questions & Answers

Two cycle engines don't prime the same way that 4 cycles do. A 4 cycle engine shoots fuel into the intake, and a two-stroke like what you have, pressurizes the carburetor and removes air. When you press it, it should harden, and then will slowly let fuel bypass the carb and go back into the fuel tank. Because of the ports and the design of a 2 stroke, shooting fuel into the intake would be bad for the engine.

you have hole in bulb or the fuel line check both or replace

Try by tightening both setting screws (not too tight as this will damage them) ...just enough to the home position...then backing off 1-1/2 turns on each. Try to start, if does not start, then then back off another 1/4 turn, continue till you can start then once started regulate adjust screws slowly to find a smooth idle.

Turn the carb mixture screw all the way in until it bottoms out and count the turns as you do that, then turn it out the same number of turns plus 1/2 more and see how it idles, if it runs poorly try turning it in and out slightly for best idle.

Replace spark plug Pour out old fuel and replace with 2 cycle fuel. Plan gas will not work!

Change oil

For what? I need to know what size engine. or equipment you are working on to be able to help you. send more information.

You better buy new.

check what they call air gap between the coil and flywheel .010-.012 gap
also be sure your flywheel is in time.
you will actually have to remove it to do this and check for the sheared key or be sure the key way aligns with the crankshaft keyway on the flywheel

Mantis Deluxe Tiller operator manual This maybe what your looking for

The following was extracted from the Mantis owners manual.. At some point, you may find that the tines won't turn when you press the throttle. This may mean the engine isn't sitting all the way down on the worm gear housing. Perhaps you've been using your Tiller for several years. Or perhaps you've removed the engine for use with the Mantis hedge trimmer attachment, then replaced it. In either case, the flange bolt may have come loose and lifted the engine up. If this happened you'll notice a gap between the bottom of the engine clutch case and the top of the worm gear housing. To fix this, loosen the flange bolt. Take the engine off the worm gear housing. Notice the hex head on top of the drive shaft . Inside the clutch case, you'll find the clutch drum. Make sure the hex head lines up with the clutch drum inside the clutch case. Then put the engine back on the worm gear housing. Make sure the plastic carrying handle is not under the fuel tank. If you've followed these steps properly, there will be no gap between the clutch case and the worm gear housing. Make sure you tighten the flange bolt.

Try www.mantis.com. You should be able to find the manual for download or request one from Mantis.

the diaphragm goes in with the large circle towards the needle the fuel inlet side goes in with the clear sheet against the body and the rubber one on top.

if the primer bulb cannot pick up fuel and the fuel lines are good then you have a bad primer plate and you need a new carb

try not to over work the engine so much.

-Adjust it. Good luck mai