Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions

Really these units are similar, but if you ask a dealer you'd think they were exact opposites.  Never used a lever traction system like the Toro, but did briefly try the auto trac on the Ariens.  I live 1/2 hr from Brillion WI and really do feel an attraction to Ariens, but that is another issue... Help me out guys!  I'll be pissed if I choose wrong.  Price is the same.

NotMoneyGuy,

Your signature says you own a Dulex 28, does your machine backfire when you idle down from operating speed?

mmr_tiggy wrote:

It has done it once or twice. I will try to slowly turn down the speed as mentioned above.

Edit: Here is a B&S FAQ link.

Slinger-

Backfiring is caused by the winter fuel and the overlean fixed jet that the govt. requires in today's standards. In the motorcycle community when Harley was using the fixed jet Kehin carbs on the Evo Block ead engines in the early 80's it was standard practice to use a carburetor jetting ream in order to richen the mixture and the backfire and blueing of the exhaust pipes diminished. Harley eventually went to computer controlled fuel injection which is not an option for us.

On blowers as the engine breaks in the problem will diminish a little  but it is something we have to learn to live with.You certainly haven't gotten a "lemon" and will enjoy good service from your machine.

Just a point of interest- When the ope engine manufacturers were first forced to go to fixed jets by the govt. many of us who bought Tecumseh powered units spent the $80 for the old style adjustable jet carb which were still available for the snow engines and the lean run issues went away. Since Briggs had been out of the snow market for about 30 years the new design they introduced for blowers had a new carb with no old ajustable variant available that would fit. The result  is if you got a Briggs you just have to deal with those issues. Interestingly some Briggs owners will report none of these issues with their fixed jet units. This can be explained by the gas available where they live and the altitude at which the engine performs . Honda's don't experience this problem because they manufacture their carbs with several sized fixed jets available.They usually match the engines to the area in which they are sold. I have a pressure washer with a GX Honda that I boought off the net(not from a local dealer).It back fired like crazy until I got my hands on a high altitude jet (rich mixture)and then the problem went away.

Marc

This message was modified Dec 9, 2010 by joed

Strange.

I've never had an engine that regularly back fired.  I've got several OPE engines within five years old and none of them have that problem.

I am just going to let the engine break in a while and see if the backfiring problem diminishes.  For now I just have to try to remember to throttle down very slowly.  The engine seems to run fine at speed so I'm going to just go with it for now..  I guess as long as it's not  hurting anything (as long as I avoid the conditions that cause the backfiring), I can live with it and see if things improve. 

mml4 wrote:

No problems with my B&S. It even has a fixed wide open throttle and never backfires. I always use Stabil treated premium fuel.

EDIT: At about 3K feet elevation as well.

No backfiring on my Toro which has a Briggs & Stratton on it. All last year no backfiring and this year it started up with one pull. I just slide the fuel to off and let it run out by itself and no backfiring.

Mine didn't have a fuel shutoff so I added one. Easy to install and cheap. At the end of the season I usually let it run out of gas, pull carb bowl off and drain fuel there and then empty remaining fuel out of gas tank.

Purchased an Ariens Platinum 24" 1 month from a local dealer, not HD.  Haven't used it yet but after numerous starts and stops from full throttle and with run times of up to 20 minutes, it hasn't backfired yet.