Engine turning over but will not start!!!!

[nascar_junkie1]

Only have 10 hours on this and it will not start up, has fuel, getting fire to plugs, cleaned air filter, put new plugs in it, and a new fuel filter for ***** and giggles. Fuel is getting on the plugs lightly. Anybody any ideas PLEASE???? Its a slt 1554 model. with a Kohler 27hp engine.

 

[sandman2234]

Safety switches?
David from jax

 

[Rhoderman]

Well, if you got fire, and you got fuel, and it ain't startin', you might have timing problems.

That said, I don't know how your timing could have gotten messed up. I think these are solid state ignition, but I could be wrong.

Did it do anything odd the last time it ran? When you shut it down, did it backfire? If it backfired, it might have sheared the key and shifted the flywheel.

Try just a little starting fluid in the carb to see if you can get it to fire. Maybe you don't have enough fuel for some reason (float, water, ...,?).

HTH,
-Rhoderman

 

[7254t]

Check flywheel key!

 

[nascar_junkie1]

Well, it seems it has been running a little slower since the first time I used it, and it was running fine last week. When I went to start it up sat. it was running like it was on low speed but the idle stick was up on fast. I turned it off and it backfired a couple of times. then when I tried to start it again it was just turning over and backfiring. All safety switch are working or it wouldnt even try to turn over. STILL PUZZLED!!!!

 

[shvl73]

I think I would do as the others suggested and check the flywheel key. If you have an impact wrench it'll be easy to remove the flywheel.

 

[nascar_junkie1]

Is there alot of disassembly to do this, it is still under warranty.

 

[Egon]

Have you looked at the carb ?

 

[Fordlords]

There have been reports here of flywheel nuts coming loose and sheared flywheel keys on the Courage engines causing them to lose proper ignition timing. You'll need to remove the cooling shroud and the flywheel nut to inspect for this.

-Fordlords-

 

[Bob_Bainbridge]

An engine needs fuel, spark, air and compression at the proper time. You say that you have fuel and spark so if there is enough compression and nothing restricting the air intake, that leaves timing like others are suggesting. Holding the spark plug wire near the plug while cranking should give a spark of at least 1/4 inch.

Bob B.

 

[GreenQuality]

well my first thought would be air lock in fuel line,second I would ask why did you put new spark plugs when this unit has ten hr on it,try putting your old ones back,if you still have them,and 3rd low battery charge .

 

[iquester]

Is there alot of disassembly to do this, it is still under warranty.

Nascar Man -- Easy call. Since you are uncomfortable with disassembly, take it in for warranty work! I would agree with others that timing seems likely to be your problem.

M Gardner

 

[nascar_junkie1]

I called the fellow that is going to be working on it and explained it to him and he agrees that it is the flywheel key, said he has been getting alot on these in the shop.....

 

[Fordlords]

I gather the hold down nut torque spec for the Courage flywheels is not enough, I'm pretty sure Kohler will issue a bulletin for this if they haven't already.

The flywheel is keyed for 2 reasons, one the timing is determined by a magnet attached to it that passes by the coil to induce the spark voltage at the right time as determined by the key's position. Second, the key itself is made from a softer metal than the flywheel or crankshaft end. This protects the engine from severe internal damage in the event something driven off the engine should suddenly lock up- the inertia from the flywheel will shear the flywheel key, throwing the ignition timing off and stopping the engine rather than the engine continuing to attempt to run and bending its rod(s).

-Fordlords-

 

[nascar_junkie1]

Well, just dropped it off and the fellow said that he talked to kohler and they said they had a few get out where the hold down nut was not torqued properly.they are aware of the problem. Thanks guys, Billy

 

[strkpr00]

I am betting on the flywheel key, Fordlords put me on the right track, and I fixed it after grinding a new key that was a bit too big. Fixing it on a Sunday my options where limited.