Craftsman

I took my tiller a part because it would not start and on the timing is off how do I set ?

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A timing mark is an indicator used for setting the timing of the ignition system of an engine, typically found on the crankshaft pulley (as pictured) or the flywheel. These have the largest radius rotating at crankshaft speed and therefore are the place where marks at one degree intervals will be farthest apart.
If the engine timing of the cam is off, your car will either be running rough or not at all. If the ignition timing is the problem, it isn`t as easy to notice because it has four cycles: Intake valve sucks in air while fuel is delivered by the injectors. The fuel mixture is reduced.
To adjust your timing, all you need to do is turn the distributor housing one direction or the other, depending on whether or not you want to advance or move back the timing. If the rotor turns clockwise, you`ll advance the timing by rotating the distributor counterclockwise, and vice versa.
Timing Marks:

These could be at the front or on the flywheel at the rear of the engine. At times, the crankshaft pulley locates these marks. Or, they could be on the largest radius that rotates at the speed of the crankshaft.

It`s just the number of links there are in the chain, versus the number of teeth on the sprockets. They`ll line up every ninth time you see the painted marks. That`s the same as every 70th crank revolution, or every 35th cam revolution.
Most engines have between 5-20 degrees of ignition advance at idle. This is referred to as initial timing.
Contrary to what a lot of people think, cam “timing” and ignition “timing” have nothing to do with each other anymore than a timing “belt” and a fan “belt” have anything to do with each other.
Advancing the cam timing moves the valve opening and closing events earlier in the cycle. Since the relationship between the intake and exhaust lobes cannot be changed, advancing or retarding a cam affects both the intake and exhaust valve equally.
Pit Stop with Marlan Davis: Degreeing a custom cam ensures its maximum performance, helps prevent piston-to-valve contact, and protects against assembly error. The bigger the cam, the more important this is.
proper ignition & valve timing is imperative for your engine to run properly. improper ignition timing will cause spark to happen at the incorrect time and your engine will barely run, if it can start at all.
If the valve timing is incorrect, not only will the engine not run, but the piston could smash into the valves, causing catastrophic damage. Usually, the result is bent valves and damaged pistons.
to set your base timing without a light, you just turn the motor over in it`s normal direction of rotation until the mark lines up with where you want it..
When rotating the crankshaft and turning the engine over, the camshafts will realign after the crankshaft has turned twice. Now, the marks on the timing chains will take around 15 rotations to line up on the timing marks on the sprockets.
A timing chain guide is designed to keep the chain in tension so it will not flutter like a serpentine belt when the engine speed changes.
For most engines, rotating backwards will not harm the engine. The main concern would be those with a timing chain tensioner, which could jam if turned backwards.
Straight-four engines typically use a firing order of 1-3-4-2, however some British engines used a firing order of 1-2-4-3. Flat-four engines typically use a firing order of R1-R2-L1-L2. Straight-five engines typically use a firing order of 1-2-4-5-3, in order to minimise the primary vibration from the rocking couple.
The top three methods for controlling timing are chains, gear drives, and belt drives.
For those unfamiliar with the term, initial timing is what needs to be done to an engine`s ignition system before the engine can be started for the first time.
The camshaft is connected via the timing chain and sprockets at a 1:2 ratio to the crankshaft and therefore revolves once for every two turns of the crank. Its purpose is to operate the intake and exhaust valves in the correct timing with the piston as it sequences thru the four strokes.
It can be found behind the cylinder head, in the vehicle`s lifter valley, or adjacent to the engine block.
It can be found behind the cylinder head, in the vehicle`s lifter valley, or adjacent to the engine block.

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After a few weeks of no use, my tiller started on the first or second pull but even after long warm up, it stalled as soon as I trottled up. This happens even on the stand with no resistance/load. The machine is not jammed–the tiller blades turn while the machine is idling. It just dies as soon as I try to work.
ANSWER : Hi there,Sometimes the gas filter in the gas tank gets plugged. Here are some instructions that will help.http://mantis.com/mantis-owners-manuals.asp Thank You for choosing FixYa.com and good luck.

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Mantis tiller will start and idle, but once you engage it, it stalls. Any ideas?
ANSWER : Check the exhaust side of the tiller. There are 3 screws on the muffler cover that need to be removed, then there is a cover on the spark arrestor that also has 3 screws to remove. Inside this is a small screen (the spark arrestor). Take it out and clean it with a good solvent (I use carb cleaner). This is the easiest and least expensive fix.

If this doesn’t work you may need to rebuild the carb. I have found it is easier and costs about the same thing to just replace the complete carb.

The company will tell you to make sure you always run the carb dry before storage, but I have NEVER done that as I believe it dries out the gaskets. I just use STA-BIL gasoline stabilizer before I store it for the Winter and keep it setting level in storage.

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How can i get my mantis to start? i am vision impared and have trouble seeing the settings. what should the i/o switch be set at? the choke? how many times on the primer bulb be presses? thanks
ANSWER : Hi again, the I / o switch is for i = ignition or ON – the O = offnot seeing the choke you will need to push the control one way or the other – using memory push the choke control full one way and try to start the unit – it if fires off pull it back about 1 quarter of the way back away from full on choke. As for pushing the bulb – if the unit has not been started for a month or more – push the bulb 10 times. – if you’re restarting the unit after a short pause in use then 3 times. Best of luck with this. Also you might just want to drop by a Lowes hardware and they will help you if you need further help. Thanks for choosing Fix Ya

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My tiller stopped moving during use, after enitting a puff of smoke. The motor still works well; it does not move, however. Is there a belt that could be burned out? Is this something that can be attempted by an amateur or should best be left to the experts?
ANSWER : You don’t say where the smoke came from but check out the worm gear box and see if gear is eaten up. Supposed to be greased regularly but gear can wear out over time or overloaded digging. . Don’t know your model but here is manual on one of them. See if it helps. Look fer it!http://mantis.com/global/assets/owners_manuals/08_tillers/401702.pdf

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Mantis tiller idle screw adjustment – Mantis 2-Cycle Tiller
ANSWER : Start out with 1.5 turns on High speed jdet and 1/2 turn on the low speed. Make sure plug is not wet, better yet install a new one. Clean, fresh fuel and give it a pull.

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I have a two cylinder Mantis tiller. It has locked up and the cord is locked. I am unable to pull the cord. Any suggestions? I was in the process of using the tiller when it felt as if it were running out of gas. It stopped on its own, and then it was locked up and I was unable to pull the cord.
ANSWER : Check the oil, if not full fill it, take the shroud off, should be for bolts, fit a socket on it with a breaker bar or ratchet and turn it a few times, then reassemble and start. Hope this helped Tim

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My mantis tiller starts but there is no input to the tines, what could be the problem?
ANSWER : Here is the parts breakdown. You should be able to fix it yourself.

http://www.alamia.us/Mantis_Tiller_Parts_s/149.htm

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My Mantis Tiller won’t start and there is grinding type noise when I try and start it. I recently did some very lengthy trench digging over a period of about 2 months.
ANSWER : It sounds like the clutch springs may be overheated and the clutch shoes rub while you try to start it.If you loosten the screw that holds the engine to the gear box you can try to start it without the clutch and see if that is it.Good luck

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