Software
Houzz Logo Print
kenmc5

Good mulching mower recommendations

17 years ago

IÂm looking for some advice for a good heavy duty push mulcher. I may need to replace my Lawn Boy 10247. IÂve had this lawn mower for about 5-6 years. It feels like itÂs froze up when I try to start. I have to break it loose, then it leaks gas out the exhaust and air filter when I pull to start. Once it frees up, it starts. I think it has lost some compression. It runs good, smokes more than normal and uses more gas. This mower surged when I first got it and when took it back for surging the mechanic set the rpms to 3900. Mulched, bagged, and discharged everything. I did notice it smelled hot when I was done mowing. After reading this forum I drilled out the main jet, slowed down the RPMs to 3500 and was real happy with its performance. I have a gator blade and like the way it mulches both grass and leafs. I upgraded to steel wheels with bearings. In my opinion makes it push easier and the wheels take the rough part of my back lawn.

All in all itÂs been a good mower. I have mulched very thick grass and leaves. It leaves a few straggler grasses but if I need a perfect cut after heavy duty mulching I go over it again with an older LB 7227 side discharge (with sharp blade).

Any way it may be time for some major repairs or time to look around for a new or used mower. What I liked about the Lawn Boy was it light weight handling, mulching thick grass and the choice of side discharge, mulching, and bagging. What I donÂt like about is the noise and sometimes the exhaust gets a bit much. I always used the LB oil.

IÂve used the LB for the last 4 years to mulch leaves in the fall and IÂm thinking about getting another push mower primarily for good mulching and solid build. I would like to upgrade the wheels to steel wheels even if they are after marked but they need to fit. I had checked on a snapper and they stated they could not get steel wheels. I had wondered about entry level Toro SR or the entry level Honda with quad cut blade. IÂve wondered about a commercial grade mower but that is a bit out of my price range and they seam to be heavy. I think my lawn looks better with a lighter mower.

Thanks in advance for any advice. This site was a big help in choosing my LB and I was very happy with it performance.

Comments (11)

  • 17 years ago

    IMHO, the Toro SR is one of the best mulchers on the market but might be a tad heavy for your liking. The Honda Quadracut works well but tends to clog in thick grass, the clippings get jammed between the blades.

  • 17 years ago

    Thanks canguy, mulching tall grass and leaves is the main objective. Does the Toro SR require a special blade for mulching, or same blade for mulching, bagging and discharging?

  • 17 years ago

    'It feels like itÂs froze up when I try to start. I have to break it loose, then it leaks gas out the exhaust and air filter when I pull to start. Once it frees up, it starts.'

    Maybe the carb float is stuck and it's leaking gas down into the engine, resulting in hydraulic lock.

    'It runs good, smokes more than normal and uses more gas.'

    It's a 2-cycle Duraforce. This is typical of an engine running too rich. Again, stuck float and/or clogged inlet valve. It's getting too much gas which makes more smoke because the gas contains oil. If you overhaul the carb, you can probably keep using it.

    'I drilled out the main jet'

    If that was poorly done, it may be contributing to the over-rich condition.

  • 17 years ago

    Ken, the SR doesn't require a blade change for mulching.

    Ditto what canguy said about it's mulching capability. Also, at 84 pounds, it's lightweight for a self propelled unit, especially compared to the Honda HRX (about 100 lbs.) and most commercial 21" mowers (over 100 lbs.). I can push mine manually in tight spaces with no trouble.

    Hope this helps.

  • 17 years ago

    I looked on online at the Toro 20090, 20092, and the 22155. They looked real tempting. Maybe IÂll get one next year (wants vs need).

    I ended up getting a new carburetor for the LB. ItÂs back with the same surge as when I purchased it. I did replace the pilot jet with one I had order a few years ago and that helped. At full throttle it runs at 3900 RPM with no surge but IÂll keep it down to 3400- 3600 for normal use.

    I may order new jets, float, governor spring, gasket for the old carburetor and drill out the main jet one more time. The surging is a bit annoying on a light load but it doesnÂt surge in a heavy load. I also may just leave it the way it is and use it, or sell next year and try a Toro. It mulched some tall grass today so I know it will get me through fall.

    The good news is that it does have compression and is not leaking gas through carburetor or exhaust, and will mulch through heavy grass maintaining its RPMs.

    Thanks for the advice.

    Ken

  • 17 years ago

    The best mulchers I have ever had are 20yr+ old Toros. I think I may have gotten into the 90s with my most recent 20622. Too clunky with RWD to make a good trimmer. But for a small yard , it would be great. I have no clue about newer stuff. But nothing I hear is good. I had a 2 stroke Toro on a steel deck pusher that was great until the coil went. My little LB trimmer is perfect. I mix rich then dose the fuel with MMO, so the smoke smells good.

  • 17 years ago

    Kenmc5,

    I too have your same Duraforce engine in my two Lawn Boys. I have a LB 10552 (everyday mower) and a like new, LB 22261 (commercial mower in storage, in case the EPA conficates my everyday mower). Also with a Gator blade.

    My recommendation for the hot smells: Use one of the synthetic 2 cycle oils to reduce both the smell and smoke. I'm using from my stash of Mobil 1MX2T and Mobil 1Racing2T. It is discontinued but you may be able to find some leftover stuff at AutoZone or your local ExxonMobil Distributor. If not, I have heard others had good success with Amsoil's 2 cycle oils.

    I found the Toro Super Recycler mulches excellent but weighs a bit more than you are used to. I traded my Super Recycler in to get the second LB, because my Briggs powered Super Recycler did not have enough power for tall and thick grass. Mine kept stalling out in places the LB's did'nt break a sweat (or rpm).

    The perfect mower for me would be a 2 stroke Duraforce engine on a Super Recycler Deck.

  • 17 years ago

    I have to say it's tackled some very long thick grass. It leaves a few stragglers but the grass that is cut is chopped into small pieces. It does not bog down. With leaves I actually pull it backwards to chop the leaves better.

    Just for fun I still may look around for a good used Toro to see if I like them. Does anyone know if the Toro in this add has the mulching (or atomic) blade?

    http://cgi.ebay.com/Toro-Lawnmower-super-recycler_W0QQitemZ270462300926QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item3ef8cf32fe&_trksid=p4011.c0.m14

  • 17 years ago

    'but it doesnÂt surge in a heavy load'

    Then there's no problem. It's running as-designed.

  • 17 years ago

    IÂm actually ready to try something different and IÂm not necessary satisfied with ÂIt's running as-designedÂ. I spend a lot of time mowing by choice. Our lot is 136 x 300 and I push it for exercise and a stress break. Overall this has been a very good mower and I donÂt plan on getting rid of it unless I find another mower that will perform with heavy grass and leaves as this one does.
    I have tried the Amsoil oil. The only concern I have with this oil is that you have to make sure it is mixed well. I used a glass mason jar to mix a tank. It took a lot of mixing/shaking to get oil from not sticking to the glass.

  • 17 years ago

    The best all around premium residential mower is the Toro SR - I have an earlier SR - the 20038 with an Intek engine. Great mulching combination as it has plenty of power to blast through tall, thick grass. No blade change to switch to bagging. I used my SR for bagging leaves. It works well - but a Snapper Hi-Vac would do a better job. However mulching was my #1 consideration and the Toro was a better deal since it comes ready to mulch and bag.

    Personal Pace is not everyone's cup of tea - I like it. I mow alot of grass now and it does not really seem like work to just march along behind old "Big Red".

    Unfortunately - you can't get an Intek on a Toro SR any more. But the deck is good enough the Quantum should be fine for almost all applications.

    The Intek has one quirk I have read from alot of owners. It is a pain to start hot, especially after 2-3 years of use. Since I mulch 99% of the time I just make sure I don't have to stop....lol.

    Jim