Can't start engine after storage for several months (weather is cold)

The cold weather may cause your Yamaha Timberwolf to experience hard starting, several months and no use, or a stale fuel supply. Start by replacing the spark plug, if the engine still does not fire up, clean the carburetor and make sure all the hoses are connected tightly with no air leaks. If none of these strategies work, the carburetor may need to be adjusted or replaced. You may want to take it to an experienced mechanic if you are unable to get the engine started.

How to Start a Car in Freezing Cold Winter Weather

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wikiHowFreezing cold weather can take a toll on car batteries. ... It's much more difficult to start a cold car with a mostly-empty tank, so do yourself a favor and gas up ...

Why is it so hard to start a car in the winter? - HowStuffWorks

auto.howstuffworks.com/car-driving-safety/.../start-car-in-winter.htm

To start a car in winter, your engine has to work extra hard. Learn the top 3 reasons your car is hard to start in cold winter weather.

Debunking 5 Cold-Weather Car Myths - Popular Mechanics

If you know how to take the carb off/disassemble it and check "o"rings for replacement you'll be good to go. You may have to buy a carb rebuild kit for your model. I have done several snow blowers this way and they start right up in the coldest weather -10. Use carb cleaner to clean it out and you may get lucky. Make sure to clean the emulsion tube under needle and seat. always run fuel empty for winter. use pumper and run a ll fuel out, if not use fuel stabilizer for summer or winter storage.

Sounds like the cold start solenoid. It is designed to keep the engine running at a set RPM until it reaches a specific engine temp.

• This will happen to a lot of people as the weather begins to cool. I suggest making sure you get gas from a reputable service station for one. Just as important make sure to put a bottle of HEAT in your tank with every fill up(half a bottle for half a tank fill up on fuel).

• What happens is there is already a certain amount of water no matter where you get fuel from as the storage tanks have a lot of water in them. That alone with the colder weather makes for rough starts and at times poor running conditions in the colder months because water freezes and makes the gas hard to pass through to the injectors and greatly effecting the engine firing properly. Heat will dry this water up and make your fuel flow much easier and burn a little better too.

• Try this and you will notice a difference. Just about anyone will during the colder months.

• Hope this helps.
  

here are general starting guidelines for your make but I recomend you go to the llink i am supplieing, pick the link that is for your year and download it so you will have a copy. you will see each link has a year and month of each model. that information should be located on you mower, if a rider look under the seat. please contact me for more help. Thank you http://www.husqvarna.com/us/homeowner/support/download-manuals/?query=YTH2042&types=O
TO START ENGINE (See Fig. 3) When starting the engine for the first time or if the engine has run out of fuel, it will take extra cranking time to move fuel from the tank to the engine. • Be sure freewheel control is in the transmission engaged position. • Sit on seat in operating position, depress brake pedal and set parking brake. • Move attachment clutch to "DISENGAGED" position. • Move throttle control to choke position. NOTE: Before starting, read the warm and cold starting procedures below. • Insert key into ignition and turn key clockwise to "START" position and release key as soon as engine starts. Do not run starter continuously for more than fifteen sec onds per minute. If the engine does not start after several attempts, move throttle control to fast position, wait a few minutes and try again. If engine still does not start, move the throttle control back to the choke position and retry. WARM WEATHER STARTING (50° F and above) • When engine starts, move the throttle control to the fast position. • The attachments and ground drive can now be used. If the engine does not accept the load, restart the engine and allow it to warm up for one minute using the choke as described above. COLD WEATHER STARTING ( 50° F and below) • When engine starts, allow engine to run with the throttle control in the choke position until the engine runs roughly, then move throttle control to fast position. This may require an engine warm-up period from several seconds to several minutes, depending on the tem per a ture. AUTOMATIC TRANSMISSION WARM UP • Before driving the unit in cold weather, the trans mis sion should be warmed up as follows: • Be sure the tractor is on level ground. • Release the parking brake and let the brake slowly return to operating position. • Allow one minute for transmission to warm up. This can be done during the engine warm up period. • The attachments can also be used during the engine warm-up period after the transmission has been warmed up. NOTE: If at a high altitude (above 3000 feet) or in cold temperatures (below 32 F) the carburetor fuel mixture may need to be adjusted for best engine performance. See "TO ADJUST CARBURETOR" in the Service and Adjustments section of this manual.

change the fuel filter

check the TPS for being out of range and change if neccesary also check the MAP sensor for faults

We had this problem and replaced the ignition switch.

try runing so fuel injector cleaner through it and see if that helps plus if u have not had a tune up try giving it one anbd put a new air filter in it