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Brilliant host! Great camerawork and editing!

piss poor design diaphram carb, stupid pump/primer bulb. old chain saw carbs had choke plates and much better design

You are a gifted Teacher!!

Excellent information and explanation. I sure wish I had seen this video a couple of months ago. I had to replace a throttle shaft due to a difference in the cable linkage. I found the pump quite by accident when I removed the shaft. Only thing is I did not see a screen. It all worked in the end though. Also good tip on securing the spring. Secondly I didn’t know that the butterfly’s were slightly oval. I recently fought, and lost, to get one back together. I ended up buying a new carb. Cheers Tom

Stuck value because no oil to lubricant it 😅

for years I have always wondered how come the japs make such shitty screws ...JIS screwdriver that's the answer amazing. Thanks mate

Proprietary screws should be illegal

I love the specialized info that is available here...and the gutsy way that Tom removes tiny parts from a carb on a tree stump! I always use a work bench and a white rag to make things easier to see!

Great video thanks for sharing your knowledge . I learnt something new today . 🇦🇺

thanks for a very well prepared and executed tutorial. Not a moment wasted! Not a single umm or errr. I learnt more than ever about this diagnosis. In my case it was a faulty ceramic resistor in the sparkplug boot. Not cracked. Looked a tiny bit discolored. Found after all the hassle of an engine pull-down for coil testing

Changed springs just recently. Life is good again

What a great explanation! Thank you.

Outstanding tutorial. Kudos.

Maybe you can give me some quick advice cuz I can't find a single video on there on here about this but I bought a brand new pull start kit for my 49cc motorized bike and straight out the box the cord is jammed I cannot get it to pull

What a excellent information video Tom👍, i can see a few small engine repair guys checking through there old carb boxes 😂

Rule number one, Never work outside on a tree stump, if you drop a small part then say goodbye to it, a clean bench and floor inside is a must when working on small parts ! Trust me, I’ve been there !

In some extreme cases, just dirko does not fix. So the solution is 2 component epoxi. The disadvantage is that if it needs replace, youl have to disassembly the whole crankcase for remove it with a socket and applying heat

How do I know which chainsaws from stihl needs the oil pump placed before installing the bearing?

So some of the accelerator pump carburetor models have a metal plug pressed into the top of the 3rd bore. Getting that plug out can sometimes be tricky as you have to remove the throttle shaft first and then hold the pump piston down while using an angled pick to drive the cap out. Also it is worth noting that usually if you look at the pump piston you'll see the side of it is scored up badly and that scoring is transferred to the bore which is what tears up the o-ring. The way the piston is operated the force applied to it isn't straight down, it's off center and as such the bore gets ovaled out and even with a new pump piston they usually don't go for very long before developing another vacuum leak in that area. I always recommend replacing an accelerator pump model carb once the pump/metering gaskets are used up.

Thank you Tom for another excellent and highly informative video. As always, your explanations are clear and concise and your camera work, sound and editing are second to none. You should be very proud of your work.

Great video Tom, well done.

Good idea thanks

Bought a new carb for £6 ..... but good to see you fix this anyway 👍

Can you rotate the fuel inlet nipple to align it with fuel tank?

I have had to replace a carburettor on some lawn equipment because the reed valve was leaking which was causing the engine to bog down &: flood, replacing it with a $16 carburettor from China was the fix since it was cheaper to replace it. I was caught out with a cheap & nasty carburettor which I bought from a Melbourne seller on eBay in Victoria so I ordered a $30 AUD carburettor from a seller which was based on the Central coast of New South Wales because it was an urgent repair. The other carburettors main Reed valve was just held in by Loctite which got eaten away by fuel which caused the hedge trimmer to bog down & flood as well because fuel leaked past the check valve. So just be careful when buying lawnmower parts from a Muscat online !

As always, so AWESOME ! 🙏🏻💖🙏🏻

Nice tutorial Tom, I have been using the oil trick for a few years it works well. I sometimes do the same for finding leaks on two stroke intake, crankcase and barrel base gaskets.

moooore noooooos😂

Excellent video

Mr. Tom thank you and well done! One question, why brake cleaner and not carb cleaner? OK 2 questions, was there no link for the baby drill bits?

Sí ese problema que está mostrando que se presenta en ese carburador zama lo hace un carburador walbro qué problema revisaré en ese carburador walbro gracias saludos profesor

What's wrong when the bulb won't return to it's normal shape?

Never had a clue this was a accelerator pump. Awsome stuff.

Always good stuff here👍🏻 I always tell everyone, 90% of the time, it’s the carb giving the issue.

Excellent info. I would venture to say not many people know about that pump and o-ring.

You are an idiot who obviously never went to school it's the first thing they teach you

Excellent as always. This channel is a truly unique source of important knowledge.

Bloody hell. Just got a bit of a wake up. I didn't realise you're catering to the American market. Went to order a vac pump, came up as $79. At checkout it was $174. Glad i didn't just hit the button and go for it. I understand the situation you're in, but it's not all about America dude.

Extremely useful tutorial, accurate and concise. I wish more presenters were like this. BRAVO!

Thanks

2:55 is the trick

Going to add this to my ever growing knowledge of small engine carbs. Great stuff, thanks man.

Excellent clear advice. Bravo Tom.