Varietech is a Small Engine Video Repair Tutorials which covers most known makes and models. A comprehensive tutorials on carburetors, pull starters, ignition system, engine internal, trimmer heads, tuning & adjustment and more. Please like & "Subscribe" and support our channel to grow and we all make this channel a successful database reference on Small Engine Repair Tutorials. God Bless!
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Need to rebuild the carburetor or replace with a new one. Please do subscribe for your future reference in working your own small engine. Thanks for watching.
I bought your product and it did not fix my problem, I can still start with spraying brake cleaner down it.I have used two gaskets and still did not work. Do I need to put sealant behind the gasket?
Likely your carburetor pilot jet or pulse hole is blocked. Remove the air cleaner assy and there is a small hole (pulse hole) on the side of the carburetor manifold, spray it with carby cleaner and blow with compressed air. Even these hole and pilot jet nozzles are blocked, the engine will still start when you spray directly into the manifold. The pilot jet nozzles are those tiny holes inside the venturi towards the cylinder side. This pilot jet also coming through the tiny holes along the wall of the main jet which could also blocked. Health wise when I'm getting better, I will find another unit which I could demonstrate this issue. Warped air filter is the most common problem with this unit. Pulse hole and pilot jet are secondary issue which you might have. As of now, best is to rebuild your carburetor and there are lots of RU-vid videos you could follow.
@@Varietech-AU I bought a brand new Chinese carby for two mowers and two primer bases. Worked fine on one but not on the other, I would keen for a video to demonstrate this problem. Thanks for the reply.
This is fantastic, it's literally the only video about the same lawnmower I'm trying to fix, my landlord accidentally put 2 stroke fuel into the lawnmower and said it was smoking and coughing until it shut off and now it won't start I'll be sure to do this because I'm 90% sure the carburettor needs a proper clean after that, I already cleaned the spark plug, added petrol to the spark plug socket, put the plug back in and tested for spark and it wanted to start but couldn't Thank you for this
13:26 I notice the replacement doesn't have those additional two small holes to the check-valve. What's the purpose of those? Is it just a more reliable design on the original?
very nice and detailed!!! I am debating whether I want to spend the time...do you know where I can just order a new carb.? its a vintage 1985 model!!! from Deutschland!
I wish they still made the mikita weed whackers to stroke. They were the best machines I've ever bought. I think I left a store 1 day with 4 of them and they finally all are used up. Wish. I can purchase more
The older Makita were built to last, especially the engine part. Note: no carburetor will last forever without rebuilding and replacing its rebuild kit.
Very informative. I'm not a small engine mechanic so I'm struggling getting my fs45 working again. Thank you for all the info. The only thing you could add is tuning high and low fuel screws but there are lots of other videos covering that. My stock fs45 (sold in canada) does not have an adjustable high fuel range so I bought an aftermarket carburetor that has an H screw. Being able to tune H and L for temperature and altitude is very important. Cheers and thank you
Thanks for watching my videos. Yes, I will cover carburetor tuning in the future. This will not be a voice over due to the noise of the engine when revving. Thanks to all my subscribers in 🇨🇦.
Great video. I still have a problem that my primer bulb never showing fuel entering it and the return line to gas tank never provides any fuel coming out of it. Continually pressing the primer bulb eventually leaks fuel somewhere in the front of the trimmer housing and nowhere by the carburetor or the fuel lines. Very confusing. The primer bulb line s delivering plenty of fuel to the inlet but never to the return line and the motor never starts. Does this indicate an internal blockage somewhere still within the carburetor ?
@@Varietech-AU Thank you and I will verify all the above. Mystery is while continually pressing the primer bulb that never fills with fuel, starts a leak somewhere far in front of the wacker housing (motor area), nowhere near the carb. I even tried this with carb detached from intake gasket area to make sure nothing from the carb was leaking into intake chamber and it still leaks somewhere you cannot see, likely from the tank somewhere you cannot see. It drips from the motor housing bottom. Also, does needle valve top hook onto rocker or does rocker just sit on top of needle valve.
@@Varietech-AU Thank you. I will have to further disassemble to reveal entire fuel tank, since I cannot assume there is any reason or other area of fuel tank to have any type of intended opening or connectors, leading to what we both feel could be a crack. Not sure why any grommets would even be located in that tank area, since all hose connections are all in the carb area and not leaking as previously stated.
@@Varietech-AU I have thoroughly cleaned all valve orifices per your video and also ensured fuel pump diaphragm is properly in place. Still nothing ever comes through the return to fuel tank connection even under constant bulb pressing pressure. Is there something else and where in the carb that your excellent removals and cleanings does not address where a possible blockage remains, preventing fuel from returning to tank. Also removed that hose to ensure that return connector was what is blocked and not the hose and when disassembled, that return connector orifice is totally cleaned out when sprayed so it is clear.
Better than factory now. Those non captive plastic needles never worked properly. Every power torque I've seen, I just start with a wide-open throttle because they are always flooded.
For a change, to fix a small engine outside of Australia. Fixed the last minutes before we left my hometown. Fuel stabiliser might not be available or not affordable. I'm not sure if it's necessary in tropical region. One thing I didn't have a chance to adjust the throttle for correct voltage and frequency of 220V 60Hz.
Thanks. It's a great holiday but still I did small engine repair overseas which I'm going to upload next. I brought with me all the different carburetor gasket and diaphragm kit for Trimmers and Brushcutters just in case someone ask me to repair their unit for free. It's a mix of holiday and repairs. I spend half of my holiday is setting up my brother's 10 units Internet Cafe, upgrading SSD and RAM and installing games and repairing his gasoline/petrol generator in Leyte. When I was in Davao, I spend time to fix my brother-in-law's 500W audio amplifier. I'm now in Sydney. Yesterday I did repair on Victa Tilt-A-Cut with Mike from Narrabeen and will be uploaded next.
Great video....I have one issue, after stripping mine it now starts but stalls when i engage the accelerator...any ideas? I did turn the cross head screw located on the mesh side. Thanks
Its only 2 dollars but you need a normal grinder and a bench grinder? Its more like a few hundred dollars to make a macgyver tool. You can buy a pro Mac version for around $ 50 and less clutter in garage.
