Mowing along everything is fine mower shuts off .Cranks back up but when you take the parking brake off or the blade PTO engine shuts off dragged back to shop let it set overnight went out checked fuses ok checked fuel supply ok looked for disconnected wires to safety solinoids ok .tried to crank and smoke billows from exhaust cut it off checked oil its now high smelled oil and the high was gas in it.My mystery question is can the seat and needle I know can cause gas entering in crankcase but is there a sensor in crankcase that would tell it too much oil and shut it off before it started smoking are they related or just a fluke?
Do you believe fixing the fuel in crankcase will fix the sudden shut down and shut off of machine? It has a nikkii carb so there is no seat im planning on just putting new fuel float needle and fuel pump just in case diaphragm in pump is bad oter then that ill be stumped.And thanks for your reply on the sensor in crankcae
Absolutely yes, it will fix your problem of gas in oil. Your engine may have an oil pressure sending unit located in close proximity to oil filter, its purpose is to shut down engine if oil pressure becomes too low, thus saving engine.
How long did you run it with gas in the oil? If for very long, your connecting rod bearings could be shot. I hate to say this, but I have seen this happen three times with my neighbors' mowers (in fact, I just took apart one of the engines with my kids to show them what is inside).
As a result of this, I now add a manual fuel line shutoff valve to every mower with the tank above the carburetor bowl.
Update got parts in new bowl, needle valve and new fuel pump, engine cranked right up smoked for alittle while(ol before you say anything new oil and filter)smoke cleared and purred but when you disengaged parking brake shut off.i put a jumper wire on the seat cut off no change checked all fuses all good tried to figure the parking brake plug but couldn't did ohm it there are four connections one will ohm two others and the other that it dos'nt ohm with it will ohm the same two but not the other is there a way to bypass just to make sure this is the switch to replace?there not over 10.00 so no big deal I did do some other research before I waste anymore tim on a charity job maybe someone can answer this the battery is supposedly bad it cranked up very easy no jump ive read this mower has electromagnets and pulls a lot of juivce when parking brake disengaged is this true would a new battery make this work?And one more thing seems he lost the spring if there is one the lever is there but seems there should be a spring if someone could just take a pic of how and what there choke is hooked up model and carb is listed above
Another update after watching a youtube video on how to check a relay the right way I did a test on my friends and it failed looked up the relay 19.99 afte watching the video and seeing that all relays are basically the same I found one advance auto 5.99 same amp same pattern same numbers in pattern plugged it in and no more problems everything works like it should .I just need to know the parts diagram I was looking at dosnt show what the choke linkage is hooked up too I know when you push the choke position up it closes the flap I see it moving I know where one the flap to connect rod and the slit you put it in just cant find a spring listing to hook it up to the choke connection.Ive got the choke lever installed it works it pushes it close when I move the lever but after engine starts I move it down and valve stays closed is the lever bent out too big in the slit making it bind and the pull on intake will open it automatic?????????
Final update there is no spring to return the choke lever it needs to slid in the slot with no binding I bent it back just alittle and it works perfect the machine runs smooth and everything is working fine thanks for the input while I was trying to get this thing back running. Its a shame he went out and bought a new mower and 65.00 later and 7 days later this one would still be mowing for years to come.Thanks again
