Question about Mantis 4-Cycle Tiller

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Lack of power at full load and stalls Mantis 4 cycle

Starts fine , idles fine and will walk across the yard to the garden ok, but when I start to till it will rev up and then it will bog down while the tines are in the dirt and die if I don,t let up on the throttle. Takes a few pulls to get it to restart but will bog down and die once the tines are working in the dirt. It's a 4 cycle Mantis on premium gas, proper oil level. Two years old and used about ten times. Fuel line have been cleaned and bulb has fuel in it. Fuel tank clean.

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Posted on Jan 02, 2017

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  • 376 Answers

SOURCE: difficulty adjusting carb for smooth idle and full power tilling

Your quickest fix for this problem is to simply replace the carburetor, a Zama K54A. Do it all the time. After that, if you can find a 2 cycle oil, Opti-2, it's the best you can use and it's a one mix for all your 2 cycle equipment (blowers, trimmers, chainsaws, etc.) It's the only 2 cycle I sell in my shop.

Posted on May 13, 2009

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  • 15 Answers

SOURCE: Won't stay running...

I had the same problem with my mantis. It would start fine after a few pulls, but had no power. I changed the plug, replaced the carb completely...nothing helped. Took it to a shop and paid $70 for a tune up that didn't help at all, and the shop owner just said "sorry".
After everything else was done, I pulled the cover off the muffler, (3 screws) then removed 3 screws over a small spark arrestor screen and found it was clogged...cleaned it and guess what...IT WORKS FINE NOW!

The best and easiest fix I have ever done to a small engine. I felt like an idiot, because the exhaust side of the motor MUST be clear to work properly on small engines. The only reason I was removing the muffler in the first place was to check the compression and VOILA!!!

An easy and quick fix I recommend for all Mantis tillers before you waste money on carb issues (which is what the company will tell you to fix to solve this problem).

Posted on Jun 03, 2009

  • 15 Answers

SOURCE: Engine runs fine on 2-cycle Mantis tiller, but

Your problem is a common one on Mantis tillers. The engine sounds like it is not breathing properly. I have fixed dozens of these problems and it is almost always the spark arrestor clogged up. The spark arrestor is found inside a small housing on the muffler (easy to fix). There are 3 screws that need to be removed to get the muffler cover off, then you will see a small housing a little over an inch long with another 3 screws...remove them and you will see a small screen that is probably clogged. Clean it and the housing with a solvent (I usually use carb cleaner) then re-install the arrestor and reassemble the muffler cover. This will fix your problem about 80% of the time.

If that is not the problem you may need to fix the carburetor (take my advice and just buy a new one...not much more expensive than the repair kit and a lot simpler.

Posted on Jun 14, 2009

wolfwizard11
  • 5 Answers

SOURCE: Mantis 2 cycle - tines lose power.

I had this problem today. Loosen the flange bolt. Pull the engine off and check that the hex end of the shaft is lining up with the clutch pad in the engine-that it seats properly. Then make sure the shaft is seated all the way into the worm gear and put the engine back on. You will probably have to wiggle the shaft until it seats into the clutch. Tighten the flange bolt when the engine is seated flush with the worm housing (with no gap). That's all I did and the power is back up. Hopefully you still have your manual with the parts blow-up. (page 29?) BTW, have you checked that the wormgear is greased?

Posted on Aug 04, 2009

  • 1 Answer

SOURCE: tines stop under load

Need Owners Manuel for a Ryobi (ZRRY46501) electric Tiller?

Posted on Aug 13, 2009

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My mantis tiller with a honda gx22 engine starts then shuts off after approx. 30 sec.


If your unit has a primer bulb, start your engine . When it starts to die push your primer, if the engine comes back to life you have a carb issue.

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The Mantis has a speed controlled automatic clutch.

Lower the idle speed by turning the idle screw counter clockwise. The idle screw is attached where the throttle cable meet the carb. The screw has a pointed end that resembles a pencil point.

The engine speed should be adjusted just above stalling.

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Craftsman Platinum 190cc 22" Briggs


hi there

danielburgi

1 almost sounds like you may have a restriction in the main jet of the carburettor or idle circuit transtional holes or idle air bleed holes , also check emulsion tube

2 then if these are all ok try adjusting governor - as soon as load exceeds power output - unit will try and stall- once governor adjusted re-try -

3 the only other thing it may be is too low compression which ia major concern

try 1 and 2 options 1st


3 is the last option which means a leak test to check compression loss or worn rings



cheers pauly46

hope it helps


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Engin runs fine at idle but stalls out at high idle and wont rev up.


Hi 5flash... Get an assistant and a can of starter fluid. Remove the air cleaner and spray some starter fluid into the air intake. Start it up and spray the starter fluid as you move it to high idle, repeat until it works properly. Joe

Thanks for choosing Fixya!

Feb 22, 2011 | Mantis 2-Cycle Tiller

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EVERYTHING WORKS FINE UNTILL IT GET TOWARDS THE END OF SPIN CYCLE THEN IT STARTS VIBRATING AND WALKING ACROSS THE FLOOR PLEASE HELP ? WE HAVE ALWAYS HAD THIS PROBLEM EVEN AFTER LOWES INSTALLED THE WASHER...


First, make sure the 4 shipping bolts have been removed, and that the machine is level front to back and left to right BOTH! Some machines prefer to be high in the front. VERY IMPORTANT Must have a minimum of clothes & towels, sheets or blankets to wash. DON"T wash 2-5 item loads (small loads)
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Difficulty adjusting carb for smooth idle and full power tilling


Your quickest fix for this problem is to simply replace the carburetor, a Zama K54A. Do it all the time. After that, if you can find a 2 cycle oil, Opti-2, it's the best you can use and it's a one mix for all your 2 cycle equipment (blowers, trimmers, chainsaws, etc.) It's the only 2 cycle I sell in my shop.

Apr 05, 2009 | Mantis 2-Cycle Tiller

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