Here you will find a list of frequently asked questions about Mantis Tillers.
- 4-stroke Mantis tiller: my tiller is running too fast or lacks power, what shall I do?
- 2-stroke Mantis tiller: my tiller is running too fast or lacks power, what shall I do?
- 2-stroke Mantis tiller: how to change the fuel pipes and/or the fuel filter if clogged or porous
- 4-stroke Mantis tiller: how to change the starter if the choke breaks
- 4-stroke Mantis tiller: my engine cuts out at full throttle, what shall I do?
- 4-stroke Mantis tiller: my machine does not start, what shall I do?
- All Mantis tillers: maintenance tips
- 2-stroke Mantis tiller: my machine does not start, what shall I do, does the coil need to be changed?
- 2-stroke Mantis tiller: why is it important to keep the cooling fins clear?
- 2-stroke Mantis tiller: how to locate the serial number?
- 2-stroke Mantis tiller: why is my engine bogging down when I give it full throttle?
- 2-stroke Mantis tiller: my machine is getting really hot, what is happening?
- All Mantis tillers: how do I maintain my Mantis tines?
- 2-stroke Mantis tiller: how to drain the mixture before storing it for winter?
4-stroke Mantis tiller: my tiller is running too fast or lacks power, what shall I do?
The tiller is running too fast
How to loose the throttle cable:
The Mantis tiller lacks power
You might need to tighten the throttle cable:
Do the reverse process explained above:
1) Loosen the lower bolt to pull the elbow-shaped pipe up to tighten the cable
2) Tighten the upper bolt to secure the assembly
You might need to check your air filter: follow our maintenance tips here
You can either clean it with soapy water and grease it with oil.
If you need to change it, please follow the instructions here.Back to Index
2-stroke Mantis tiller: my tiller is running too fast or lacks power, what shall I do?
1.The tiller is running too fast
You have to loosen the throttle cable:
2.The tiller lacks power
You have to tighten the throttle cable:
a) Loosen the top nut to pull the elbow-shaped pipe up to tighten the cable
b) Tighten the lower nut to secure the assembly
Note: If despite tightening the throttle cable, the machine still lacks power, you need to check several things on your tiller:
- the air filter of your Mantis tiller to make sure it doesn’t need to be cleaned or changed (instructions to change the air filter of your tiller here)
- The carburetor might need to be adjusted (instructions here)
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2-stroke Mantis tiller: how to change the fuel pipes and/or the fuel filter if clogged or porous
Note: If your machine does not start, you have to check if the pipes and/or the fuel filter are not clogged.
Also, if some mixture has been left in the tank more than 30 days, you have to check if the pipes and/or the fuel filter don’t need to be changed (they become porous).
The filter should be changed when it is hard to the touch or if it creases or fuel does not reach the carburetor.
The 2-stroke Kitpipe is available here. It contains 2 black pipes, 1 transparent pipe, 1 fuel filter and 1 fuel grommet:
- Put the pipes through the grommet as you can see from the pictures below: The short black pipe (valve pipe) and the transparent pipe (return fuel pipe) must be next to each other. They have to stick out from the grommet of about 5 mm on the inside, where the grommet will go into the fuel tank:
3. Put the fuel filter on the long black pipe. Be careful on which side you are putting it. The filter will have to fit into the fuel tank:
4. Put the valve on the short black pipe as follow.
Here is what you will obtain:
5. Enter the fuel filter into the fuel tank:
7. Connect the long black pipe and the transparent pipe to the carburetor as follow (the transparent pipe on top of the carburetor and the short black one at the bottom):
8. Place the valve which is on the short black pipe under the starter:
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4-stroke Mantis tiller: how to change the starter if the choke breaks
To change the complete starter of your Mantis tiller, follow these instructions:
a) Remove the air filter cover:
b) Remove the air filter:
c) With a 8mm spanner, loosen the 2 nuts:
d) Using a screwdriver, remove the rubber attached to the starter and pull to remove the starter:
e) Use the same process in reverse to assemble the new starter.
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4-stroke Mantis tiller: my engine cuts out at full throttle, what shall I do?
You should check the clutch drum of your Mantis tiller.
In order to do that, you have to disengage your engine from the transmission.
a) Under the engine, you should remove 4 of the 10 screws to get to the clutch drum:
b) Once the flange in hand, you should check that the black cover does not exceed of 5 mm the lip of the mounting flange:
c) If it does exceed 5 mm, you should lightly tap on it with a mallet to put it back in place:
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4-stroke Mantis tiller: my machine does not start, what shall I do?
There may be several reasons why the engine of your Mantis tiller won’t start:
a) It might be the handle.
Unplug the earth cable.
Start the engine.
If it starts, put the plug back. If the machine stops, the handle needs to be changed (reference 400290, available here)
If the machine does not start after puting the plug back, please have a look at the following points.
b) Maybe, there is too much oil (maximum 60 ml). Please drain the oil (see here)
c) Fuel has been left in the tank more than 30 days in the tank. Drain it and put fresh fuel.
d) There is too much fuel: please do not fill the tank top edge, leave some space for the air to circulate.
e) Check the clutch drum (here)
f) Check the spark arrestor or muffler screen in the exhaust:
If the spark arrestor is black, do not hesitate to change it:
g) The fuel filter and/ or the fuel line is clogged. Please check these parts. If you need to change them, please see here how to do so.
h) The spark plug is shorted, fouled or broken. Please change it. Instructions to follow are here
Please note that if the temperature outside is above 10°C, you can leave the choke down.Back to Index
All Mantis tillers: maintenance tips
We want to help you keep your Mantis Tiller running at peak performance for many years to come.
Here are a few simple maintenance tips to help you.
|Daily or every 4 hours use
Every 3 months or 90 hours use
|End of season
When stored for longer than 30 days
|Every 25-30 days
Every 300 hours of use
|Exhaust Port||Inspect/Clean||Before every use|
|Transmission||Check Grease Level||Yearly|
2-stroke Mantis tiller: my machine does not start, what shall I do, does the coil need to be changed?
The coil is rarely involved when the Mantis tiller breaks down. It is rare that the coil fails as it is completely sealed and electronic. The coil is a very low sparking one and can only be properly tested with a 3-point ignition tester. You will not see or feel a spark by grounding the plug.
There are three parts to check on your Mantis tiller if your machien does not start:
1) First, check if the exhaust is not obstructed.
Engine SV4: To check the exhaust of the SV4 Engine, remove the 3 screws above to have access to the exhaust grid which must be obstructed. Remove this grid and try to start the engine one more time.
Engine SV6: To check the exhaust of the SV6 Engine, you just have to insert a small hose to unblock the exhaust. If it doesn’t unblock, you have to change the whole exhaust. If it unblocks, try to start the engine again.
2) If, despite the exhaust unblocked, the engine doesn’t start, you have to check the membranes of the carburetor. They must need to be changed (follow the instructions to change the membranes here). Kits are available here and here.
Indeed, if your machine has been stored away for a few months with even a small amount of old fuel (older than 30 days) in the tank, it can clog the carburetor and cause deterioration of the gaskets and diaphragms.
Please, follow these instructions to clean your machine:
a) Drain out the old fuel and dispose of it properly.
b) Once the fuel tank is empty, push the primer bulb on your tiller 7 or 8 times to clear out any fuel in the carburetor.
c) Empty the fuel tank again.
d) Next, mix fresh fuel in the correct ratio and fill the fuel tank.
e) Push the primer bulb 11 or 12 times to pull the fresh fuel through the carburettor and let the tiller sit for about thirty (30) minutes.
f) Then press the primer bulb an additional 11 to 12 times to flush out any residue. You should now be able to start your tiller using the standard starting procedure.
Note: Do not use carburetor cleaner. Doing so will void Echo engine manufacturer warranty.
If parts are needed, they are available from www.mantis.uk.com.
3) You might need to change the handle.
Unplug the earth wire.
Start switch on Start (old models before 2006) or O/I (models after 2006)
Start the engine
If it starts, put the plug back. If the machine stops, the handle needs to be changed (available here). If you have an old model (before 2006) please contact the customer Service team at 0800 988 4828.Back to Index
2-stroke Mantis tiller: why is it important to keep the cooling fins clear?
Here some important information about the Cylinder exhaust port and cooling system .
All cooling fins must be kept clear in order for the engine to operate efficiently.
Here you find the cooling fins on the exhaust port of your Mantis 2-stroke tiller.Back to Index
2-stroke Mantis tiller: how to locate the serial number?
When ordering parts for your Mantis 2-stroke tiller, you may need to locate the SV number of your engine. It is located between the fuel tank and the carburetor, behind the fuel pipes, on a black and silver tab on the silver engine housing.
It will consist of the letters “SV,” a number and another letter.
Examples: SV4A, SV4B1E.
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2-stroke Mantis tiller: why is my engine bogging down when I give it full throttle?
Please, see the answer to this question.Back to Index
2-stroke Mantis tiller: my machine is getting really hot, what is happening?
You may not have enough oil in your fuel mixture to properly lubricate the engine.
Always make sure you use the proper 50:1 mixture ratio. Convenient, pre-measured bottles of premium 2-stroke engine oil are available via our online shopping: 2 stroke oil for Mantis tillers.
Also, there may be a buildup of dirt or debris in the cooling fins of the engine; make sure they are kept clean (see here where these cooling fins are).Back to Index
All Mantis tillers: how do I maintain my Mantis tines?
After each use, remove and clean the tines.
Then spray both the tines and the tine shaft with WD-40 (ex: Army Power) or some other light lubricant to protect them from rust.
This will also prevent the tines from “freezing” onto the tine shaft.Back to Index
2-stroke Mantis tiller: how to drain the mixture before storing it for winter?
It is essential to drain the mixture of the engine before storing it for winter. Stored fuel containing ethanol or MTBE can start to go stale in 30 days and clog the carburetor which can lead to damaging the engine.
This is how to proceed:
a) Get the pipe with the fuel filter out of the fuel tank
b) Press the primer bulb until there is no fuel left
c) Drain the fuel tank
Your mantis tiller is ready to be stored for winter.
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