20 Most Recent Husqvarna Chain Saw Models 371, 372xp Questions & Answers

I recently bought a brand new 372XP and spent the first day trying to start it as per the instruction manual with no success, never even fired once. Removed the plug to find plenty of fuel and that the plug has a good spark. Left it until the next day mainly to allow my arm to recover (& scour the internet for clues). I found a forum that said not to use the decompressor and sure enough without the use of the decompressor button it fired first go with the choke on then I reset the choke & it ran properly on the second pull. The decompressor button can be reset with fine nosed pliers or removal of the top cover by undoing three screws. Good luck it's a great saw once you know how to start it.

Is there fresh fuel in the tank? If the fuel has been there for over 2 months dump it out and put in fresh fuel and try starting again.

new set of rings bud but do a compression test first

Heres the IPL, Section C shows the oil pump and the pipe and filter that link to the back of it.http://www.husqvarna.com/ddoc/HUSI/HUSI2003_AAaa/HUSI2003_AAaa__1062604-63.pdf

Did you use the right fuel mix.? Does it still have good compression.? Have the piston rings been damaged.?Check ignition switch.

Genuine cylindere and is is very expensive, there are plenty of after market cylinders available at very good prices, however you pay your money and take your chance, before fitting any new parts you need to confirm why it siezed in the first place or it is just as likley to go again.

i am thinking the coil is going bad check the spark before and after it acts up

There is a pulse to work the diaphram carb, this is a black pipe from the crankcase, to the pump cover on top of the carb, this feeds a positive and a negative pressure to the pump as the piston rises and falls, if the pipe is cracked, or has come adrift it will greatly effect the running

check idle settings, if its ok check all valves and carburator assy is ok, check gaskets and sealings.

Start by removing the c clip and washer securing the clutch drum, remove the drum,rim and bearing, there is now a special tool that fits into the clutch spider pt no. 502522201 it is a box spanner with three protruding legs and a bar across the top, i guess you could make something similar, the idea is to jar the clutch off against compression ( left hand thread ) useing a suitable hammer to strike the tool, i welded a 19 hex nut on top of the three legged tool so as to put an impact gun on ( some of these clutchs are murder tight ) i strongly advise you not to use a piston stop, or insert anything into the cylinder to lock the piston, this can easily end in disaster.
Good luck

yth18542 is the model number of the lawn tractor, the identification plate should also show a serial number, which can be used to identify the date of manufacture as well as to differentiate between differences in this model, depending on date of manufacture. https://www.husqvarna.com/us/products/riding-lawn-mowers/yth18542/960430172/

Looks like your governor crank broke. Go to www.parttree.com

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