Snowblower will not start -plug has good spark--gas new -and getting to plug -have both back and intake pressure -oil level good new oil --flot and valves ok --all air lines connected ----yet no turn over --it also have a electric start---

check out some videos but make sure you order the right part

if no spark to spark plug, most likely coil:






Mtd snowblower 4 5 no spark new coil new plug wire is good switch is good...

Hi,
Symptoms of a bad or failing Engine Oil Pressure Sensor

• Oil Pressure Light comes on, and you check the engine oil level, But oil level is okay, you can blame the false reading on the sensor.
• Oil Pressure Light blinking constantly. This is the normal >check< oil pressure sensor Warning that the sensor is going out.
• If the sensor is giving false readings, Dispite oil level, the sensor could be replaced.

If the Sensor is currently not working, and does not warn you of engine oil level, and oil level gets extremely low, The Engine could burn up/stall due to lack of oil, and may not restart.
Then you could probably blame it on the sensor.
But really would be lack of oil.

Intermittent No Start,
Common causes deal with 3 basic systems/areas of engin

1. Compression, its the build up of air and fuel into the engines cylinders. Then is compressed by the pistons. And is under pressure. FAILURE An Air leak (vacumm leak) will allow pressure to escape.
2. Ignition System, good battery, good relays, wires are not loose or disconnected, good 10volts to starter, 10volts to distributer>gives 20kvolts to spark plugs>has strong spark to ignite compressed air in cylinders. Other sensors need to work. Crankshaft sensor(ccs) Throttle Position Sensor(TPS), +more
3. Air/fuel Ratio, Air Intake Manifold, and Fuel Pressure Sensor *Fuel Injection Pressure Sensor---if car is fuel injected*, air filter is clean and intake manifold hose, Throttle Plate Acuater, Idle Air Contro Valve(IAC). Also vacumm leak cause no start. To much air not enough fuel will cause lean fuel mixter==low power, low idle, no start.......To much fuel not enough air will cause rich fuel mixter==too much fuel could cause engine knock, flooding of engine wet spark plugs, No Start

Scan Vehicle computer for Codes, Places like AutoZone---Discount AutoParts will connect scanner for free, And Code Will say What is wrong with Vehicle,

My guess is that the intake valve it not closing or it is burnt.

does it have good gas in it , clean it out if it is 2+2 mix put new mix most small snowblower are 2 stroke which takes gas oil mix , make sure you clean plug and are getting spark

Did you drain the gas from last year? Gas is only good for a few Months. You should always run the machine dry at the end of the season or add Fuel Stabilizer at the end of the season. Id start by getting all the old gas out of the tank and the fuel Bowl on the carburetor. You will also want to check for spark. to make sure there are no electrical issues. Check oil level also. Depending on machine it may not start if oil level is to low alot of machines have a oil pressure switch.

How did you store it? The gas should be drained out of the carburator and tank prior to storing. If you don't do that it starts varnishing the jets closed in the carburator. So to start it, try draining all the old gas out. Take the spark plug out and put the wire back on and lay it on top of the block. Crank the engine over turn switch on if it has one, does it have spark? If it does good. If not try a new plug, if it still does not have spark you will have to pull the flywheel to see what is wrong with the points or pickup. Once you have spark established, put new fuel in tank. Spray a little WD40 into spark plug hole. Put spark plug back in and go through normal starting procedures. Good luck.

flood it out means that there is too much unburnt gas in the cylinder. the spark plug is probably wet with gas. simple fix though. just pull the spark plug out, pull the cord on the engine a few times and let everything set untill the gas evaporates. then put the plug back in and try to start it. easy with the choke or it will happen again.

This sounds like a fuel issue. Could be bad gas, water in the gas, improper gas/ oil mixture (if 2 cycle), wrong or incorrect level of crankcase oil (4 cycle) or a partially plugged fuel filter.

clean the carb's insides. It's probably gooped up with gummy gas. I like B-12 Chem Tool. Its a spray cleaner from Auto Zone about $4. Others kinds are ok but this is good stuff.

Low on oil will NOT ever prevent an engine from starting - unless it is a small engine with oil shutoff.

Will not start is a fuel or spark problem...
So. start with fuel:
1: level in gas tank
2. fuel pump delivering it to the engine.

If you can get some gas in a squart bottle and spray it into the intake - and have some one crank it... if it fires, then it is gas and troubleshoot 1 and 2 above...
If it will not fire with gas injected directly into the intake, it may be spark.

1. Pull a plug wire and hold it near the gngine block. Have someone crank the engine and check for spark...
If none, look for bad coil, voltage to coil, etc. that circuit..l.

2. If spark at the wire (from 1 above) then assume timing... with out adequate oil, you may have distroyed the timing belt/chain tensioner (it uses oil pressure to stay tight). Check the timing (both ignition and cam). If the belt is gone, nothing will fire.

Best of luck - lots of possibilities here - so I just want to get you started in the right direction (and away from the oil issue) - besides, you said that you added oil - but not too much - since you cannot get a decent oil level check on a hill!!