Model CV16s Kohler no ignition /spark – Garden

ANSWER : Hi hoho641…

Make sure you are getting spark at the spark plug, to do this:Remove your spark plug and check to be sure you are getting fire at the spark plug.You do this by grounding the plug on the head of the engine and pulling the crank rope, if you are getting spark then:
Sounds like you have dirt/debris in your caburetor jets,fuel passages or a diaphgram that is becoming non-flexible. Check/Clean/Replace your Air Filter, a dirty air filter can make your engine run to rich with fuel.
Note: ALWAYS USE COMPRESSED AIR TO CLEAN YOUR JETS AND PASSAGES, VERY IMPORTANT.
Note:Before you disassemble the carburetor:Mark each piece with a awl, or some kind of instrument that will make an alignment scratch before you disassemble the carburetor into separate pieces.That way you will know which way it goes back together when you reassemble it.
Sometimes you can get by with priming the carburetor or by using starting fluid and letting it run a few times like that, and it will flush the gunk out of the jets,but most of the time you will need to rebuild the carburetor.Be sure to check your fuel tank for water and dirt/debris, if there is water/debris then you need to clean your tank.Check you fuel line condition after a while they will degrade and need replacment.
Check/Clean/Replace your fuel filter if you have one.Make sure you are using fresh fuel.If the moweris over a couple of years old, then I recommend that you buy and install a new carburetor repair kit,because the diaphragm will get hard and that will cause it to be hard to crank.The diaphgram may look good and flexible, but it can be deceiving and not act as a fuel pump as it should because it has become too hard and will cause hard starting,start and run and shut off, etc.
When you clean your carburetor, I recommend that you use a laquer thinner type cleaner to clean and dissolve the laquer build-up in the float and needle jet passages.Be sure to remove all plastic and rubber parts before using the laquer thinner because it can dissolve the plastic parts and render them unuseable.Be sure to use COMPRESSED AIR to blow out all the fuel and air passages.The higher air pressure is needed to blow some of the trash/debris from the fuel or air passages.Be careful when blowing out the passages, because there are sometimes small rubber type seats in the bottom of some of the passages.Keep in mind that the float (if you have one) for the carburetor must be level when you go to reassemble the carburetor or follow the instructions you get with the carburetor kit, or you could also ask the parts man that you get your kit from.When you clean your carburetor and remove the jet screws, you will first need to lightly seat the jet screws.But before you lightly seat the jet screws count the number of turns it takes to seat the jet screws from their original position.Be sure to mark the turns down on a piece of paper.That way when you put the jets back in, you know to lightly seat them first and then turn them back out to their original position before you started.
After you have the carburetor rebuilt that should solve you starting problem.
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ANSWER : Hello,

Have you tried changing the spark plug? Then you might consider changing the electronic igniter or the distributor, depending which one your model brings.

Thanks.

ANSWER : Check for the switching pulse at the coil input terminal. It should be less than the battery voltage but not zero, or pulsing in sync with the engine (if you know the spark dwell angle, you can calculate the voltage by multiplying it by the number of cylinders, dividing by 360 degrees, then multiplying by the battery voltage). If you don’t get any indication that the coil is being switched to ground to generate the spark, your distributor contact (for mechanical ignition switches) , magneto or electronic ignition module could be the problem. Before changing whatever one of these you have, double-check the wiring to the coil – a misplaced, broken or loose wire will have the same effect.

ANSWER : I have GT6500 26HP runs for awhile begins miss firing runs on one cylinder, must be running hot ( fuel may be vaporizing ) removed the Hood and it runs fine.

ANSWER : I’ll bite, what’s your question Mike? If you are looking for a how to, you can probably find it at the manufacturer’s website, without going into too much detail however I can offer you a general approach.- Remove the front hood of the mower and the shroud if it has one.- Disconnect the carb, and exhaust and move it aside.- Remove the Spark plug- Carefully remove the valve cover in the front of the engine.- Look up the proper valve adjustment settings for your model.- Get the engine at top dead center.- Take measurements and adjust the valves accordingly.- Clean the valve cover itself, and where it’s going to be seated.- Apply a thin coat of gasket sealant, put the cover back on.- Wait for the sealant to bond (depends on manufacturer specs_- Fire it up.Keep in mind, this is a general guide, see your manufacturer’s manuals and technical diagrams for more details.

ANSWER : With the ground wire off the coil and it turns over, you have a bad coil these engines are notorious for this. GOOD LUCK…..

ANSWER : Did you check your gas? Generally a loud popping sound indicates water in the fuel. If there is one carb hitting and one not, the one not hitting may be full of water. Drain the carb bowls. Drain the tank. Clean the spark plugs and try it.

ANSWER : I can’t say for sure, but it’s PROBABLY about 0.035″.