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It was funny the first time (You Tube Master Mechanic). I can take it, but I repeat, "say what you want about You tube, but there is usually someone else out there that has gone through this" So I use You tube and the Forums a lot to help in repairs. No budget to take it to a repair shop every...

My next step I think is going to be pulling the carb off and removing fuel bowl. Give it a good cleaning and see what happens. It will have to wait til next weekend though. At least I know how to get the hot engine to restart with the primer bulb even if it isn't that healthy on the engine. Not...

Spark plug looked ok, just pulled it out of a hot engine, man that sucker was hot. here is a pic. I have a brand new autolite 3924 that says it crosses to a RC12YC i can install if needed. Electrode looks like a new one.

I do not have any choke on this mower. Carburetor has a priming bulb on the intake, next thing in the carb is the automatic throttle control as see in pictures I posted on 8/29.There is no manual choke auto choke or thermostat to control an automatic choke.

ok, just saw Mower Kings post. but I already spent a whopping $4 for the bulb and installed to find out that didn't really fix the underlying issue, but at least I know how to get it started again in hot condition. I couldn't figure how changing a rubber bulb that was not cracked was going to...

Test of primer bulb results: cold start- 3 x push on primer bulb + 4 pulls on the rope = starts right up. Run for 10 minutes, shut off and let 5 minutes pass to simulate time to dump grass catcher. Hot start- 35 pulls on rope and at pulls 12,15 and 21 back fired through carb and popped pretty...

Understood. Thermostat is for choke system engines. I have the primer bulb system. I am going to prime it with it hot and not starting to see if that fixes anything tomorrow. If priming helps, then I will change just the primer bulb. Still a little confused about how this is causing hard to...

Ok, no choke, not sure I understand the concept of no choke system, but I got it. I sure miss the mowers I grew up with. Mounted on the handle was a throttle/choke control with a turtle and rabbit icon. Worked great until all these kill levers and such came along.

Spark plug looks fine by the way, first thing i checked along with the oil level.

Ok I will try to prime it tomorrow on a hot engine to see if it helps it start. This is a 15yr old mower by the way so it won't surprise me if the primer is malfunctioning. There again as I stated above this is why I am trying to fix it for the neighbor instead of a small engine shop at $30 an hr.

Ok, so now I am straight on this is the THROTTLE. Does the throttle butterfly have anything to do with original problem. Pulling on the rope forever to get it to fire up again after dumping grass catcher. It seems to start up pretty well if you let it cool down. So maybe back to this thermostat...

LOL. Yuk, yuk , yuk. still better than paying $30 hr to a shop.

primer bulb?? How does that come into play when engine is hot. 3 prime pumps at cold start and it fires right up. I have never used the primer after engine hot. Are you supposed to?

Ok, my bad. I was thinking this is choke system. this is throttle system, sorry. Ok now what. LOL.

I will try to post a video of it running tomorrow, but the only thing visible when running is the plastic lever on top of the butterfly, that is why I marked it with a line in the direction of the valve. Strangest thing.

If butterfly is supposed to be closed on cold start and this one I am working on is exact opposite i.e; wide open at cold start, i can see right down the intake like in above pic 0536. how is this mower starting after two pulls? It seems this machine is opposite of what its supposed to be. I am...

My auto choke system looks nothing like the video, maybe i am not using correct name for it, the butterfly control cable goes to a lever at the back of the engine that moves when the mower is running and you can see the butterfly valve nearly closed and fluctuating when running, shut off mower...

Seems to be a common problem, but not sure what else to do. Working on a Craftsman 21" self propelled / walk behind model number 917.377823. Briggs engine 7.0 hp OHV model 128602 0304 E1 for a neighbor. Mower cranks with 2 pulls when cold (first start) but after shut down to empty bag it will...

Thanks Chairman, it is a 18.5 hp OHV briggs and stratton.

Ok, head gasket may be next, I will check the dip stick. Please educate me a little about small engines. A blown head gasket on a car/truck is allowing coolant to enter pistons/etc. producing constant white smoke out the tail pipe. Minus coolant on a Briggs & Stratton (air cooled) how does the...

Ok, so the saga continues with a new problem. New carburetor has arrived and installed on 5/12/20, changed spark plug again also due to the other one looked fouled from the fuel flooding issue. Tractor started right up with a little choke input. run great, drove it down the street 100 yds or so...

Thank your bertsmobile1 for the constructive criticism. All feedback is welcome. That link with the procedures is exactly what I needed a few days ago and still need so a great big thank you. I did not have said items in my possession "There is nothing to break when removing the carb but it is...

I just ordered a brand new carburetor for $28 all in. I will just replace it. It comes with a new shutoff solenoid as well. Thanks to all of you who helped me through this. I will be posting again soon on the other mower the same neighbor has. It is a Craftsman self propelled.

I am stopping here for now to see if someone can suggest what else i can do before removing the carb. as I don't have new seals/gaskets on hand if something should tear. I am tempted to just buy a new replacement carb if I can find one for a decent price. I have seen therm run from $25 to $125...

Ok there are some duplicate pics now but oh well. Still trying to figure out what the black plastic adjuster is in pic 198 but I moved on. I have followed the steps from bertsmobile1 and air flowed freely while float was hanging, moved float horizontal and it blocked the air so I think float is...

Thanks bertsmobile1. Pictures attached (but they are tiny when resized to 72 dpi). I will try what you suggested later today as it is 3am right now. Not sure what seat you are talking about. I am an amature small engine mechanic. I had removed the bowl as pictured in image 5. There was a rubber...

I am working on a neighbors Briggs 18.5 hp OHV engine on her Craftsman DLT 3000 riding mower. It has a 698445 carburetor on it and it is "flooding out" dumping way too much fuel in the carb and is actually spitting out air filter intake and if cranked long enough will spill out exhaust. It fouls...