I'm having problems with the mower idling. If i tilt the mower back with the 2 front wheels off the ground it runs fine but when i put it back down it runs really slow. It's a murray select 22'' 4.0 hp push mower

1) NEVER adjust to where the deck wheels touch the ground. The wheels are to ride 1/4" off the ground. 2) The long lever to your left which raises & lowers the deck has 3 settings. 1- Fully back toward you which has the deck raised (called transport mode). 2- Halfway down which is the normal mowing mode (called float mode) 3- Fully away from you which sets the deck fully on the ground. This mode is ONLY used for VERY rough terrain where the deck risks getting pushed into "transport" or "full up" mode & getting stuck there. 3) On front-to-back tilt, the front should be 1/2inch lower than the back for least damage to the grass. Ok-now to adjust "cutting" height. 1) Park on a level, flat surface. 2) Pull the deck lever fully back toward you to put the deck into "transport" mode. 3) twist the "cutting" height knob (just below your seat) to the height you want the grass cut. Has choices by 1/2" increments from 1" to 3.5". The deck in "transport" mode is 4". 4) Lower the deck lever to the midway/"floating" mode point. 5) Adjust each deck wheel with its own peg & pin to have at least 1/4" clearance from ground. Thats it for "cutting height" adjustments
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call your deere dealer,
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Troubleshooting

Service Mower

cant find info for you,call dealer

Leave aside all the puffery about 3-1 and such, you described a front wheel drive (pull) walk-behind (FWD), but are asking why the rear wheels won't propel. When you push down the hand grip the front wheels should spin free. Whan you lower from wheels by releasing pressure on hand grips, turning wheels lowered to ground should propel the mower along with its unpowered rear wheels now turning be ground contact. Reminder, never, ever lift rear drive wheels of any mower off the ground while walking behind with engine running:

1. You could be struck by blade propelled object.
2. You could pull mower and spinning blade backward onto your feet.
3. You could lose balance and be pulled forward in a fall.

Contemporary FWD mowers are recognized by a black chain housing on deck top leading from engine to left front of deck. RWD propelling chains are situated underneath deck so cannot be seen from above.

Explore the problem to see if its the power steering, or physical steering or engine:
Does it stall when its in neutral and you go to full lock?
If so its the power steering, or the engine isnt ticking over fast enough to generate the extra pump pressure needed when on full lock. Check pump belts are good and tension is correct. Then buy a used idle valve and swap it out.
Also do basic checks to see if wheels are catching on some part of car. Jack it up so front wheels are off ground, on full lock in neutral do the wheels turn freely, or catch on something? Slowly lower the vehicle down and check same as you do it. When its down put it in gear and see if it stalls.

I had same exact problem. Pulled air filter assembly off and the whole automatic mechanism that operates the choke was gunked up. It allowed the choke to fall back when I tipped the mower up. Cleaned it up and oiled the spring very lightly and it runs great now. One of those time when I wish they still had manual chokes. Just a bad design.

hello, hello, Drive belt replacement for front drive mowers. remove the belt coved on top of deckand clean out grass,turn mower on side where carb is facing up,use a pair of vice grips on side of mower deck so the blade can stop,remove the blade,remove the belt cover and clean out the grass,remove belt from rear and front pulley pulleys. install new belt,put belt cover and blade back on,put front belt cover on, should work,if that is not the problem; wheels will not prepeal the mower,wheels turn only when raised off ground, Check the gears or groves on the inside of the wheel for access wear that is a common problem,check the axle drive gears to make sure turns ok, to check gear box if ok pull mower back wards while drive is engaged,if wheels turn backwards than the trams is bad,all of this is caused by the operator,by not disengaging drive while pulling mower backwards or by holding mower back not allowing to propel self completely,hope this helps,any comments welcome,thank you.

Water in the carb bowl. Primer charge is gas...what the main jet draws is water! Tipping backwards lets the water move away from main jet pickup and clean fuel to enter engine.

Drain the tank. Then the carb and fuel line. Then check your gas can for watery fuel. *(dump it into a large plastic bowl and look to see if there is a layer of water on the bottom. If you shake up the fuel before you pour it off you will see cloudy liquid if there is water in it).

That should do it.

This is a symptom of the seat safety switch not working. Tilt up the seat, check the connection to the switch and also check the wires (pinched, broken?). The switch could be bad, or the mounting could have broken.

Drain plug is under the motor. tip the hole machine back, (handle lying on ground) put something heavy on handle to hold it down, the plug usually is a 1/2 size wrench. Put a pan under machine to catch the oil. Take the drain plug out, drain oil, put drain plug back in, tighten it, and put machine back on all four wheels. Add oil. Take about 3/4 quarters of a quart. SAE 30 or 10w-30.

a mowing deck is suppose to be lower in th front than the rear usually 1/2" to 3/4" difference however if you need to adjust your deck you can go to www.deere .com and search for your owners manual and the procedures will be in the owners manual