weak spark

[Monty72]

I have a Ariens snowblower, model PW6HK17750. It won't start, it floods so bad gas comes out the exhaust. I have replaced the carb, and the coil, checked the fly wheel key, the valve adjustment, is there anything I missed. Trying to find parts for a LCD engine seams to be a little challenging. Any help would be appreciated.

 

[ILENGINE]

Have you checked the oil to make sure the crankcase isn't full of gas if the carb is flooding that bad. Also LCT is part of Lauson/Tecumseh. So parts are basically Tecumseh parts, but Ariens and Husqvarna use LCT engines but claim they are an Ariens or Husqvarna engine and parts maybe only available from them for those engines.

 

[Tiger Small Engine]

Have you checked the oil to make sure the crankcase isn't full of gas if the carb is flooding that bad. Also LCT is part of Lauson/Tecumseh. So parts are basically Tecumseh parts, but Ariens and Husqvarna use LCT engines but claim they are an Ariens or Husqvarna engine and parts maybe only available from them for those engines.

LCT=Liquid Combustion Technology. Says it is U.S. owned and operated business. I would think parts availability is somewhat limited.

You state weak spark in heading, and say fuel is coming out of the muffler. You have replaced ignition coil and carburetor and apparently no improvement?
Did you have good strong spark with original ignition coil? What type of carburetor is original (brand)? Try pinching off fuel line and starting/running engine.

 

[ILENGINE]

LCT=Liquid Combustion Technology. Says it is U.S. owned and operated business. I would think parts availability is somewhat limited.

LCT kind of falls under the same type of agreement that Kawasaki and JD have with their engines when it comes to Husqvarna and Ariens. You can find part numbers under the LCT diagrams, but in some cases trying to order them has a note attached to see Husqvarna or see Ariens.

LCT warranty and parts distribution is through CPC Certified Parts Corporation. Which manages Lauson Power Products which is the Tecumseh dealer network.

 

[Monty72]

All check the oil later today.

 

[Monty72]

LCT=Liquid Combustion Technology. Says it is U.S. owned and operated business. I would think parts availability is somewhat limited.

You state weak spark in heading, and say fuel is coming out of the muffler. You have replaced ignition coil and carburetor and apparently no improvement?
Did you have good strong spark with original ignition coil? What type of carburetor is original (brand)? Try pinching off fuel line and starting/running engine.

It's still a weak spark. I was touching the spark plug boot when I was testing the new coil and got zapped, it was more like static electric shock. The carb is original.

 

[shurguywutt]

Check the magnets for corrosion and clean them off. Check the coil gap between the flywheel and the magnets. Check spark plug gaps. Make sure all is in spec.

 

[Monty72]

Check the magnets for corrosion and clean them off. Check the coil gap between the flywheel and the magnets. Check spark plug gaps. Make sure all is in spec.

Every thing is checked off. Still weak spark, and no start.

 

[StarTech]

Try this remove the carburetor and crank multiple times. Now every so often check the plug and make sure it is not shorted out by raw fuel. It should start and run a few seconds. If it does then you have carb problems. Also you didnt if tried a known good spark plug, they do fail and show outside the compression zone but fail with under compression load.

For the engine it seems parts are already available once you cross that engine to Husqvarna. But most of the parts are cheaper from Tecumseh and Lauson. Just got to get the part number crossed over to one of these OEM sources. I see no reason to pay Ariens and Husqvarna jacked up prices on those parts. You do however have to use the full set numbers you imaged to find the right parts.

It like JD hiding the Kawasaki part numbers where there is a will there is a way getting Kawasaki part numbers for those JD mounted engines. So I just buy the Kawasaki parts most times. It is the same with LCT engines.

 

[ILENGINE]

It like JD hiding the Kawasaki part numbers where there is a will there is a way getting Kawasaki part numbers for those JD mounted engines. So I just buy the Kawasaki parts most times. It is the same with LCT engines.

I have come across a couple cases while working on LCT on Husqvarna were the authorized LCT distributor can't sell the part to an authorized LCT dealer, and have to purchase from Husqvarna only.