just developed a miss..

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Ok, ive just hit on something (even though im not sure i fully understand why its doing it. I fired the mower up today, It was the first time in close to three weeks, it ran flawless, no miss at all, cut 4 acres and ran it close to 2 hours she didnt miss a beat, no hint of a miss. I got done and let it sit for 15-20 minutes and took the garden hose to it to rinse it off, then another 20 -30 minutes and i fired it up. AND BAM, SPUTTERS AND MISSES. im getting water into the carb.. ut how ? yall can call me the dummy of the day for this if ya want.. what am i doing wrong ? and yes i had the hood up, but wasnt directly spraying the motor at all, do you think my spraying it off even has anything to do with this ? there has to be a ling here. I cant hardly imagine the water dropplets insite the hood got sucked inside the mower (hood closed) after i got done causing this miss,, but im no expert.. is there anything near the frame under the motor i could have sprayed that could cause this ?
 
The Intake/Air box "should" be able to keep water out unless your spraying water directly into it.. It's possible I suppose that your getting water in your fuel through the vented cap or a bad cap gasket?

I almost never use water to clean my stuff preferring instead to use the blower or compressed air. I don't like water around the spindles and don't really see a need to use water..
If water is your preferred method then I would suggest using the blower when your done to dry everything off..

Are you using water with the engine running? "IF" so you could be pulling water into the engine through the blower housing,
keep in mind that the idea of the blower housing fan is to distribute AIR all around the engine.. If your spraying water in there it will go everywhere the air goes and will have some velocity..
I also know for a fact that some engines "don't" like to get wet.. I've seen Kawi & kohler engines that were left on customers trailers in the rain simply refuse to run until the coils dried out also seen this happen when we get caught by a downpour at the shop and don't have time to get stuff in the shop..
 
Originally Posted By: FNFAL308
The Intake/Air box "should" be able to keep water out unless your spraying water directly into it.. It's possible I suppose that your getting water in your fuel through the vented cap or a bad cap gasket?

I almost never use water to clean my stuff preferring instead to use the blower or compressed air. I don't like water around the spindles and don't really see a need to use water..
If water is your preferred method then I would suggest using the blower when your done to dry everything off..

Are you using water with the engine running? "IF" so you could be pulling water into the engine through the blower housing,
keep in mind that the idea of the blower housing fan is to distribute AIR all around the engine.. If your spraying water in there it will go everywhere the air goes and will have some velocity..
I also know for a fact that some engines "don't" like to get wet.. I've seen Kawi & kohler engines that were left on customers trailers in the rain simply refuse to run until the coils dried out also seen this happen when we get caught by a downpour at the shop and don't have time to get stuff in the shop..


to anser your questions, yes i use water to wash equipment, yes i use a leafblower on them when im done, NO i never have a machine running when cleaning, and of course i never spray water directly into the intake. and as a rule of thumb i let them cool off 15-30 before a cleanup. (and i think you may be right about fuel in the water) i will explain below

Today i tore it apart, the Carb came off, i cleaned all the Jets and such and cleaned out the bowl, everything looked good but atleast its piece of mind.. With that said i went in town to pick up parts (fuel filter, air filter, and yes a Carb gasket) My little boy decided to rip my old one in half while i was cleaning it all out. I will hopefully get it all back together Friday, the service man at the small engine shop says there are alot of troubles right now as there is for some unknown reason alot of water in the gas and its causing alot of trouble in our small motors. he recomended i empty the tank as well as perform everything im already doing.
I will post back up after i have it back together and running.
 
I hope my comments where not taken out of context as I didn't mean to suggest that you hose down the intake.. I was merely thinking out loud and trying to cover all the bases.
As you mentioned if your using water it's aways a very good idea to let it cool down..

LOL!!
Man I feel for ya on the Intake gasket... Reminds me of a funny story.. Years ago my Oldest Son was but about 3y/o I'd guess (he is now 17y/o).. I had recently purchased a Brandy NEW Husqvarna TE/410 4-Stroke for some off road blasting. Changing the Oil the VERY FIRST time I was "extremely" careful during the entire process because after all this was my newest/coolest toy.
This thing has an Oil Return line that has a banjo fitting and two copper crush washers to seal it and it works great.. That is unless you don't have the copper washers which my Son somehow unbenounced to me had absconded..
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As to the fuel issues your local shop is correct. It seems that the added ethanol combined with the deleted fuel compounds in today's wonder fuels have a propensity to attract moisture.. I would suggest you make sure your using a quality PLASTIC gas can, purchase your fuel from a place you know turns over some good volume, and you may want to purchase an ETHENOL Tester so you can sample the fuel at a couple local stations..

Will check back for your update..
Good Luck..
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Well, the carb went back on today with no issues, but i ran out of time before work, im going to drain the tank and refill with premium, install the new fuel filter, and ive still got to button the whole thing back up. with any luck i will manage to get this done in the a.m. this was not a hard job, way easier than i had expected (a little time consuming).. removing the hood is a MUST.
 
It's not a bad job at all, but it does take a bit of time especially the first time yo do it..
Sounds like your in the home stretch now..

Well done..
 
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Shes puring like brand new, dont know if it was the carb, fuel filter, or what. I took a gas sample from the tank to look for water, gas looked ok, So i buttoned it all up and fired it up.. not so mutch as a hiccup. Thanks to all of you for your input, im sure this saved me a $100.00 service bill (or more).
 
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