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If the bowl is dry, do you get gas out of the line running to the carb? If you remove the float(is there a float?) and the needle valve, can you blow through the fuel line? It sounds like one of those is stopped. I use canned carb cleaner to blow out the passages with pretty good results.

Single cylinder engine.

Gas can is good, mower is salvage. As I said earlier, I suspect throttle plate was blocking the starting fluid. Thanks.

What I said works fine for a single engine mower. With a PTO involved, you're over my head. If you're getting a compression tester, that's the best test, I'd wait on that.

Awful banging, that sounds like a clue! You said you replaced the flywheel key, so you should have timing. That leaves spark, fuel, and compression. Make sure the throttle and choke plates are open when you spray starting fluid, that got me. Can you disconnect the spark plug and spin the...

Good call. I was opening the choke, and spraying into the air intake outside filter housing. That normally works for me, but... In the future, remove filter, open choke and throttle plate, then spray. Thanks.

Ok. Pulled the bowl, cleaned bowl and passages, and bolt passages, installed filter and away she goes. Cut my front yard, including several restarts. Started first pull every time. Moral of the story, don't forget to clear out those passages in the bowl bolt, and watch out for auto...

Good call, I forgot that. I'll do that first thing tomorrow. I wanted to check the bowl anyhow. Thanks.

I also retorqued the cylinder head bolts, just in case heat/cool made a difference. The backyard that I cut takes over 1.5 hours, easy. I'll be putting in a fuel line filter, and checking the bowl again, but starting fluid ain't firing. I rechecked the coil gap, and reset with business card.

Hmm. I cut my backyard, including around 10 restarts for water breaks and checking the grill. Around halfway, it wouldn't restart. I pulled the carb, bowl was dirty, flushed passages with carb cleaner, put all back together and finished the yard. I let it rest for 45 min or so, and started...

Thanks again to you and the others.

put a bit of torque on the flywheel, broke it loose, and it came right off. I just didn't want to torque the crap out of the gear puller. Installed a new key from my local Ace HW, put all back together and it's running! Saved from the scrapyard. Thanks again for the tips. I was so sure that...

Can I use my gear puller(pulls on edge) or do I need a flywheel puller, and to tap the bolt holes(what B&S reccomends)

I can't see a spark, but that may be me. I put the plug in a generator and started it. Timing is obviously off, see the pic. Thanks.

Well, you called it. I'll try a pic... I never pulled one of these, can I just use my gear puller? Thanks again. I was determined to ignore timing... I just knew that wasn't it. LOL.

My spark tester shows spark. No fire with starting fluid. Air filter is new. I don't feel like I hit much of anything with the blade, though there are roots in the yard... I did a full cut of my front yard, changed the oil, and it wouldn't start. How do you set the coil air gap? With a...

I don't know what the valve clearances were before, I couldn't find my feeler gauge. I could tell the intake was leaking though. After, the intake was about .002, exhaust .007. It's one of those funky plugs with a y looking electrode, and it's new. I put it in another machine and it runs...

I picked up a toro recycler 22 with Briggs 128m02-3425-b1 engine. Compression was very weak, I lapped the valve seats and it started up and ran great. I did a 10 minute or so test cut, changed the drive belt and cut my front yard. Ran great. I changed the oil, and it hasn't started since...