This helped me so much today. Thank you for adding the details about part numbers, sizes of tools. And thank you for not skipping critical segments like assembly, cleaning tiny screw holes... It made all the difference.
Great video! I had the exact same problem with the bowl gasket. I couldn’t figure out the issue until your video explained it and showed how to fix it. Thank you so much!
Excellent through detailed video. I would have never seen some of them very small jet holes on the idle jetting. The 6.5 HP mower is now an easy start and runs like new. Very informative video . Thanks for posting it. Good Job !!!
Well I just subscribed after seeing you replace that seat and drill out the jet. Felt you know what your doing. Some in here that do videos don’t have a clue and it aggravates the hell out of us that do have a clue lol. Great video
A penny for your thoughts: I bought a brand new lawn mower at Rural King in the fall of 2023 called a Pulsar 21''. It's got a 199 cc 4 cycle engine on it and it was on sale for $99. I mowed with it about 5 times last fall and it worked very well for a dirt cheap mower. But when l stopped mowing for the year, I didn't dump the gas out of it. In the spring this year after filling it with fresh gas it didn't want to keep running. There is no choke, no adjustable throttle, just a primer bubble and the bail controlled on/ off switch. I put about 1 ounce of Chevron Techron Fuel Injection system cleaner into the full gas tank of mostly fresh gas and after priming it a few times to keep it going, it seemed to straighten right up and I was able to mow the lawn. I have mowed the lawn at least 15 times since with no noticeable problem. But just Monday, 05AUG24, on a cold start, it began to act up again. So again I put about 1 ounce of Techron into the full tank of fresh gas and after pumping the primer between 50 and100 times to keep it running, it finally began to run well enough to mow the grass. I was able to mow about 1/3 of the yard, about an hour or so, befor it began to act up again. Now it's struggling in the taller grass, going to WOT, slowing down and then recovering. It does OK in the lower grass. I know it's starving for fuel and if it had a choke I'd simply put the choke on partly.*(my snow blower has always had to have the choke on partly to keep it from hunting/ surging since brand new) I am wondering what the Techron was clearing? Is there something that you know of? Why was Techron able to resolve the problem early this spring, and for an hour or so here in mid summer, but doesn't seem to be able to clear it up completely this time? Is it something in the gas? It's fresh gas, bought about 2 weeks ago, and it's the same gas I burn in my truck (2017) I am about to rip the carb down and drill out the main orifice, but I am wondering what the root cause of the problem is. What is in there that is restricting the fuel that the Techron was able to clear? I do not believe it is water, because I do not believe the Techron would have fixed it. Maybe I'm wrong, do you know? I have a full set of numbers letters and fraction drills and it's not beneath me to figure out what size the main discharge orifice is and then open it up a couple thou, but I just wonder what's causing the leaning that the Techron was able to fix in the spring, and for about an hour again just yesterday? I wonder if after I open it up if it will again lean out. If you care to, you may respond to moparbens @ yahoo dot com please. ben/ michigan.
Leaving gas in it caused some gum/deposits to form inside the carb. The Techron is able to dissolve some of those. It's really more meant for a fuel injection system that's under pressure though. A carb setup isn't, so you get mediocre results. You might have more luck with Sea Foam. The easiest is to open the carb up and poke out the main jet and rinse everything with carb cleaner. Usually that fixes it up. If it doesn't you can incrementally drill the jet a few thousandths at a time until it runs right. Just don't over drill. That also causes problems too.
An easy test for a brass float. Make a cup of HOT WATER. Now put the brass float into hot water. If there is a leak you will see bubbles coming out of the float. No bubbles, you are all set. Bubbles you can solder the hole.
I have had a problem for a long time. The engine is still working irregularly (higher and lower revs) like yours before improving the hole with a drill. What diameter drill bit did you use at the end of the video to correct the hole? Unfortunately, I can't understand because I don't speak fluent English. Best regards from Poland!
Regarding the idle air restrictor jet…Is there some sort of spring/ball built within top hole of the jet? For instance when I cleaned the bowl nut passages (you can stick the wire through the center passage hole and see it from the side passage holes). Also when screwing the jet back in should I put the cap back on and seal it with nail polish? Thanks for sharing this video it was very helpful.
There's no spring or ball in the idle air jet. It's just the jet. Just make sure the tiny holes in the jet are clear and blow out the passages in the carb well. I usually put the black cap back on, but I never glue it with anything. It usually stays by itself.
Thanks Bruce! I was hoping to have a video on my Tecumseh 10 hp motor but I snapped the muffler bolts and got frustrated so I let it sit for a few days. Drill and tap I think is in the future.
@@billyb351 I have the same one and after cleaning the carburetor , I just removed the bottom cap the carburetor moves by itself like idle hunting .. any ideas ?
How do I identify all the same component parts you reference for a Tecumseh Carb 640052. Have the same issue w/ the needle seat on a snowblower. And emulsion tube o rings are shot. Thx!
![Full Detailed Honda GCV160 GCV190 Carb Clean [4k]](http://i.ytimg.com/vi/XUNlkJFfv_E/mqdefault.jpg)
This helped me so much today. Thank you for adding the details about part numbers, sizes of tools. And thank you for not skipping critical segments like assembly, cleaning tiny screw holes... It made all the difference.
Great video! I had the exact same problem with the bowl gasket. I couldn’t figure out the issue until your video explained it and showed how to fix it. Thank you so much!
Your video helped me bring my mower back to life. Thank you so much. I was dealing with gas pouring out of the carburetor.
Excellent through detailed video. I would have never seen some of them very small jet holes on the idle jetting.
The 6.5 HP mower is now an easy start and runs like new.
Very informative video . Thanks for posting it.
Good Job !!!
Good stuff thank you. I’ve learned a lot just by watching. My Grandson Loves your videos also. 👍🏼
I have a set up like that one
Got my rebuild kit being delivered today. Thanks for the video
ive watched bout 12 vids, yours won.
I’m glad you made the wise decision to change the bowel gasket
Well I just subscribed after seeing you replace that seat and drill out the jet. Felt you know what your doing. Some in here that do videos don’t have a clue and it aggravates the hell out of us that do have a clue lol. Great video
Hey hey easy on the carb cleaner! haha great vid. Thanks!!!
A penny for your thoughts: I bought a brand new lawn mower at Rural King in the fall of 2023 called a Pulsar 21''. It's got a 199 cc 4 cycle engine on it and it was on sale for $99. I mowed with it about 5 times last fall and it worked very well for a dirt cheap mower. But when l stopped mowing for the year, I didn't dump the gas out of it. In the spring this year after filling it with fresh gas it didn't want to keep running. There is no choke, no adjustable throttle, just a primer bubble and the bail controlled on/ off switch. I put about 1 ounce of Chevron Techron Fuel Injection system cleaner into the full gas tank of mostly fresh gas and after priming it a few times to keep it going, it seemed to straighten right up and I was able to mow the lawn. I have mowed the lawn at least 15 times since with no noticeable problem. But just Monday, 05AUG24, on a cold start, it began to act up again. So again I put about 1 ounce of Techron into the full tank of fresh gas and after pumping the primer between 50 and100 times to keep it running, it finally began to run well enough to mow the grass. I was able to mow about 1/3 of the yard, about an hour or so, befor it began to act up again. Now it's struggling in the taller grass, going to WOT, slowing down and then recovering. It does OK in the lower grass. I know it's starving for fuel and if it had a choke I'd simply put the choke on partly.*(my snow blower has always had to have the choke on partly to keep it from hunting/ surging since brand new) I am wondering what the Techron was clearing? Is there something that you know of? Why was Techron able to resolve the problem early this spring, and for an hour or so here in mid summer, but doesn't seem to be able to clear it up completely this time? Is it something in the gas? It's fresh gas, bought about 2 weeks ago, and it's the same gas I burn in my truck (2017) I am about to rip the carb down and drill out the main orifice, but I am wondering what the root cause of the problem is. What is in there that is restricting the fuel that the Techron was able to clear? I do not believe it is water, because I do not believe the Techron would have fixed it. Maybe I'm wrong, do you know? I have a full set of numbers letters and fraction drills and it's not beneath me to figure out what size the main discharge orifice is and then open it up a couple thou, but I just wonder what's causing the leaning that the Techron was able to fix in the spring, and for about an hour again just yesterday? I wonder if after I open it up if it will again lean out. If you care to, you may respond to moparbens @ yahoo dot com please. ben/ michigan.
Leaving gas in it caused some gum/deposits to form inside the carb. The Techron is able to dissolve some of those. It's really more meant for a fuel injection system that's under pressure though. A carb setup isn't, so you get mediocre results. You might have more luck with Sea Foam. The easiest is to open the carb up and poke out the main jet and rinse everything with carb cleaner. Usually that fixes it up. If it doesn't you can incrementally drill the jet a few thousandths at a time until it runs right. Just don't over drill. That also causes problems too.
Perfect explanation with clear scenes. Thanks a lot.
You showed the Tucumseh tool trying to get the o-ring out. It is also for measuring the float height which is easily adjusted?
That original needle seat was installed upside down...wrongly....the grooves face inward to carb.
An easy test for a brass float. Make a cup of HOT WATER. Now put the brass float into hot water. If there is a leak you will see bubbles coming out of the float. No bubbles, you are all set. Bubbles you can solder the hole.
Great tip, thanks!
I have had a problem for a long time. The engine is still working irregularly (higher and lower revs) like yours before improving the hole with a drill.
What diameter drill bit did you use at the end of the video to correct the hole? Unfortunately, I can't understand because I don't speak fluent English.
Best regards from Poland!
Good instructions
Glad it was helpful!
Regarding the idle air restrictor jet…Is there some sort of spring/ball built within top hole of the jet? For instance when I cleaned the bowl nut passages (you can stick the wire through the center passage hole and see it from the side passage holes).
Also when screwing the jet back in should I put the cap back on and seal it with nail polish? Thanks for sharing this video it was very helpful.
There's no spring or ball in the idle air jet. It's just the jet. Just make sure the tiny holes in the jet are clear and blow out the passages in the carb well.
I usually put the black cap back on, but I never glue it with anything. It usually stays by itself.
Hi bill can you install new float and pin on carb installed on mower?
Tecumseh 101 Good stuff.
Thanks Bruce! I was hoping to have a video on my Tecumseh 10 hp motor but I snapped the muffler bolts and got frustrated so I let it sit for a few days. Drill and tap I think is in the future.
@@billyb351 I have the same one and after cleaning the carburetor , I just removed the bottom cap the carburetor moves by itself like idle hunting .. any ideas ?
Great video
How do I identify all the same component parts you reference for a Tecumseh Carb 640052. Have the same issue w/ the needle seat on a snowblower. And emulsion tube o rings are shot. Thx!
Did you put emulsion tube back in correctly? I think you put it in reversed...
The nozzle was re-installed the right direction.
Nice!
Great vid Thanks So much!
I think it is better to remove the bowl gasket before cleaning so you can get all of the metal surfaces
your really mild bill, not to wild. ya think?
How many turns in is your air-fuel jet
That idle jet is turned in all the way. There's no adjustment on this particular carb.
@@billyb351 ok thanks! Mines also turned in all the way right now
Good video..