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In viewing a few videos on rebuilding carbs it is reported that the o rings and gaskets are susceptible to degradation from carb cleaner. Wonder if the o rings on my main tube were affected by previous use of carb cleaners or starting fluids? That tube doesn't move/abrade so I can't see what...

Just tore into the old, genuine carb and removed the emulsion tube. The two o rings are shot. That might 'splain the issue. eBay has the 2 o rings shipped for about half the price of what I paid for the whole replacement carb. Is there a spec on those o rings so i can buy locally or source from...

Thanks for the suggestions. 2 weeks recovering from bulging disc in back. Ordered ebay carb Tecumseh 640303 for ~$8 slapped it on and starts right up. Will get down and dirty when the back is more betterer and I have time to clean the original. I picked this mower up free on CL so I am not...

This carb is such a pain to remove. Will work on it in a day or so. Appreciate all the suggestions. Hold my ankles, I'm going in.

OK got it. I will set it richer AND leaner.

If it runs fine once started with a shot of gas straight into carb, but won't restart even while hot, where might the clog likely be? I'll remove the carb later today and put it through rigorous questioning. Or order a replacement for $11...

OK thanks. will look into your suggestions. Does the fact that the same problem exists whether the engine is hot or cold compel or eliminate any of your suggestions?

Sorry I misstated when I said "Starter fluid" but now changed the title to gas. I actually was just squirting gasoline into carb. Runs until I shut it off and then won't restart hot or cold without gas shot into carb.

Toro 22" recycler model 20017 sn# 250066250 got it free on CL not used in 2 years bowl and plug/holes clear fresh gas only starts with shot of gas into carb whether hot or cold once started will run without issue I see eBay complete Tecumseh compatible 640350 carbs for ~$11 anything I can check...

Oh great... brush my teeth once a month, floss once a year and now THIS!

Sorry. I had written the below post but never hit enter/save! Fixed it! Slomo pointed me in the right direction if not the correct solution. When I started looking into removing the shroud to access the coil kill wire (in the end, didn't actually remove the shroud) I noticed a bunch of grass...

alright will do. happened to have another same model carb/mower in my pile of junk (don't ask) swapped the carb out and same symptoms persist will try the coil kill with vice grips at the ready to either pull the plug wire or crimp the gas line

only thing not tried was disconnecting the coil kill wire but with it connected I am able to start with the front wheels raised without difficulties.

ok so no black smoke so sounds like fuel starvation. I've never had an issue with the coil kill switch and in fact can start the mower with the front wheels raised. I dismantled the carb today and removed the float pin and checked the seat and needle valve and sprayed it to hell and back with...

I am going back to Google noodling as I read somewhere a poster's Craftsman mower had a 22 degree limit on slope?? Can that be? My other 6.5 HP Craftsman self propelled does fine on the same inclines... Mine doesn't seem to want to do a 15 degree slope.

changed the plug as old one tip was nearly burnt off AND it was black been running the new plug for a few days so can pull tomorrow and see its condition dismantled the carb today and hosed everything in sight with carb cleaner same as before

No, but good question ie that would indicate running rich? so I guess I am back to gas starved...

It is as short as it can be as it rounds the body of the mower from tank to carb. Ran a knotted rope through to make sure there wasn't any debris collected in a bend.\ As I noted previously, the response is instantaneous. i.e. as soon as I lift the front wheels off the ground (no self-propel...

OK Took everything apart again to check the fuel lines and everything seems normal. I am at a loss as to where to go next.

appreciate the eyes on. gas full. near instant response... raise front wheels runs like crap but is it fuel starved OR too rich??? tomorrow in daylight I will remove and clean the line from tank to carb. there is a dip in the line but you would think there is enough fuel in the float bowl itself...

tried your suggestion no difference

7 HP Craftsman Model 917 370691 Front wheel drive walk behind self propelled mower. B&S engine Loses power on small inclines. Runs great on flat surface or downhill. If I tip the front wheels up it starts to lose power with or without drive engaged. Lift the rear wheels up it runs fine. Cleaned...

ebay LINK 3 for $8 Locally they were $12 each

nm. found a set of my dad's thin wrenches. worked a charm.

Handle mounts in hand. The left side is straightforward. The right side has a nylon lock nut inside the carburetor compartment. It is pretty tight in there. Can this mount be changed without removing the carb? I don't have a carb gasket on hand and don't want to make things worse if avoidable...