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Thanks, I should have know the needle needs to be wet. It still failed the second test. I had 2 of these mowers, and replaced the carb on the other. I will replace this one, I don't want it contaminating the oil.

After about 20 minutes total, the fuel level has dropped 2 inches. So my float leaks a bit, at least with inverted carb. I don't know how hard it compresses the spring with the float in a full bowl, in comparison to inverted carb. As I said earlier, I'm not really having trouble with the...

Ok, I removed the carb and bowl. I cleaned the needle and seat. I reassembled needle and float, inverted, hooked up pressure tester, and gave it 5lbs. I can see the needle slowly moving down. The needle has a spring between it and the float. If I press on the float, compressing the spring...

Yes Slomo, it's best to fix the safety switch. In my case, it's a safety switch on the chute, to make sure it's installed, I guess. The plastic chute stretched, and doesn't reliably engage switch. I am willing to accept this risk on my machine.:). If the plunger is pressed, hopefully it is...

I don't know about your machine, but many have safety switches on the bag/chute. They often don't line up properly after some time. I've had to disable a couple that wouldn't work reliably. Check for switch wires/plungers, where the bag/chute connects.

Pull fuel line at carb, check for free flow. post engine model #, this will help the experts help you.

Thanks.

You invert for testing dry? If bowl is full, should close valve without inverting, right? Is the W for walbro?

What type of spark checker? Have you checked both cylinders to see if there's a difference? How do the plugs look? Do you have history with this machine, or is this machine "new" to you? If you have history, did this problem just show up after the machine laid up for the winter? Looking for...

I saw this on Amazon and bought it, after seeing many here recommending pressure testing carbs. It came with no instructions. I searched online but haven't found it yet. I can see how to use it to test for leaking float valve. Easy enough, hook up to fuel inlet on carb, apply pressure(turn on...

It sounds like the connection between the tester and spark plug, and potentially the plug connection. Look into the connectors, make sure they connect well. Do you have a multimeter? Can you check resistance from spark plug connector through the coil, then connect spark plug and check from...

Also, what kind of tester did you use? Was it one of those light bulb ones?

True, but it was free. I was surprised how well it did cutting up the oak tree. It beats the heck out of a 16" 2 stroke my buddy has. I think his clutch is slipping, and the high speed mixture may be off. We picked it up out of father in law's garage, no telling how long since it got real...

How about Husqvarna brand chains? I see tons of 3-5 packs cheap on Amazon. Selling chains in a 5 pack gives me no confidence it'll stay sharp for long. The Husqvarna comes in a 1 pack.

DId you check fuel lines? Someone said they looked original. Did you check fuel flow at carb? Remove fuel line at carb and see if it is free flowing. An inline filter could be clogged, or crud in tank clogging the output. It kind of sounds like dirty tank to me. While mowing, the crud in...

Thank you all. I am oiling, filling the reservoir multiple times a day. When I see smoke from the chain/bar, I stop. When I said the saw was smoking, I was talking about the motor. Yes, the chain I bought was Oregon S62. I'll do a bit more research, and also check if my bar is bent. Working...

I have a Ryobi 18" electric chain saw. It was free. I feel like the chain dulls quickly. I put a new chain on, Oregon brand from Home Depot. I spent a day cutting up oak from a tree I had cut down, and the chain seemed dull. I was dealing with the stump, and tried sharpening, and had some...

You cleaned the carb, what about fuel filters/lines? What about gunk in the fuel tank? Have you tested the spark, especially when it's acting up? What about the throttle cables? Do the work consistently? I've seen throttle cables that don't move consistently, due to drag, or improper...

If you hydro lock, fuel gets in the oil, and raises the level leading to smoking. Forgot to mention that.

You may have had a hydro lock. If the carb leaks, it can get enough fuel in the cylinder that it won't turn over. Pull the dipstick and smell it. Does it smell like fuel? If so, change the oil. Some advise to change it several times, after each mow when it has been hydrolocked. I would...

That's the pic from the manual, but the idler pully taper doesn't work like that. Hmmm.

I put the idler pulley on the inside, and put a little bracket on one of the bolts through the side, and hooked the idler pulley to it. It's a new belt reasonably tight without the pulley. We'll see how it goes as the belt wears.

Here is what I did.

Ok, heading back out tomorrow. I got an idler pulley, and it looks just like the one I removed, though not as worn. The edges of the pulley were worn down a good bit. Looking at the pulley, it seems like the taper will fit best if the pulley is on the inside of the belt. I searched online...

Wow, when I follow the directions, it started on the first pull with choke in position 2! I had run it last week, and it's usually longer in between, but first pull! Thanks.

Pull the plug and turn the engine over. Be aware it may shoot oil out of the plug hole. Check the plug, it may be fouled with oil. After reinstalling plug, try to start.

check that the tank flows freely. May be trash in the tank.

Next time out, will bring laptop and check for input while I'm there. Thanks.

Man, I'd already left, missed that. My brother can take pics. We'll see what happens. The engine to clutch belt is so tight, the idler pulley is useless, even if I knew where to put it. It also seems to be wrong. It's a tapered pulley, but installed as the docs show, the pulley will push in...

Thanks guys. I have a 2 stroke that I bought new maybe 3 years ago. I just was given this one, and running it because I never saw a 4stroke engine that small.

Thanks, that is essentially how I've been starting it, but without squeezing throttle. If I give it throttle, it does not start. When it starts, if I add throttle, it dies. After a little warmup, I put choke in position 3 and I can give it throttle, and it runs fine.

I'll look at it tomorrow. I don't think it's gravity fed, as the tank is under the engine, which is the norm for weed eaters, as far as I know.

Heading out tomorrow to revisit this one. Replace belts and hook up that spring StarTech gave us a picture of. We tried asking someone who works there to get model #, but no dice. I'll get that tomorrow.

I think that's the model #. The 7 is almost gone. It takes me a bunch of pulls to get this started. The label says full choke, prime, pull with throttle open. I get better results no throttle, 1/2 choke, but it still takes a bunch of pulls to start. Once started, and with a minute to warm...

I don't drink beer anymore, but Steve is great.

The hole in the middle usually feeds the main jet. Getting something brown out of there is definitely a good thing. Glad you're running.

I'll have to stash some toothpicks and wire in my small engine kit. Will pass it on also. Thanks.

Well said. Any time fuel shortage could be the problem, do this. With an unknown history machine, I do it right away.

Thanks. I will be cautious with the torch cleaner. I use the brushes more, they are bristles, not steel.

Have you checked the fuel flow from the tank? There could be crud restricting the flow. It sounds like you'd have done that, buy you didn't say anything about it.

Have you checked the flow out of the tank? For cleaning the jet, I use a torch cleaning tool, it has many sizes of wire and brushes. The pic is from amazon, widely available.

Where is James' video? I see he has a ton on youtube, but didn't see one on pressure testing.

I didn't see an answer to Slomo's question, "Do you SEE fuel jumping up into the carb venturi out of the brass emulsion tube? You have to look INTO the bore of the carb. When you hit the primer a little fuel fountain so to say will jump up with every pump." Prime may not be giving you any...

Yes, it is a cable/lever to engage. I looked, but didn't see any adjustment. I read what doc's I could find, with no reference to adjustment. I'll look again. Thanks.

The heavy duty one I just looked up at amazon, link above, is 43-1/2, so is the other one I bought for that mower. Hmmm. Thanks.

How about this one? https://short-url.org/1sX6c that's a link to a belt on amazon.

Well, it's definitely not an OEM belt. I mostly get them off amazon. They claim to be made for mowers... I don't use generic parts store belts, unless I need something today. This mower doesn't have to work too hard, it's not much more than an hour to cut here. I will look into OE belt...

I have a Craftsman R1000. The model sticker says 247.290001, ser 1e135b20658. It's a rear engine rider, not a zero turn. I've been trying to find out how to adjust tension in the blade belt. The mower seems to throw the belt. I have replaced the belt several times and the guide rod on the...

StarTech, I understand, but haven't found a hole or slot it fits well in. As I've said, I will try the hole I did find, when I get the belt. AutoDoc, I gave the mower model, and hope to have the official motor info today. It is located an hour away from me, but we hope to get the info from...

Thanks, I was going to use paracord or coathanger, but it is the bolt head, not shaft. I'll work something out.