How to test LT50 fuel tap petcock, LT 50 Quad Project series part 3 fuel tap operation and piping

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4 жыл бұрын

Thank you for watching my video on the operation and piping of my lt50 fuel tap petcock and also how to test the vacuum switch.
New Fuel tap ebay.us/Wwk7jw
Check out the other videos on this project
Introduction - • SUZUKI LT50 children's...
Part 1 - Wheel bearing - • How to replace LT50 fr...
Part 2 - King pin - • How to replace LT50 st...
Part 3 - Fuel tap - • How to test LT50 fuel ...
Part 4 - Fuel leak - • How to stop LT50 fuel ...
Part 5 - Axle bearings - • How to replace LT50 re...
Part 6 - Chain / sprockets - • How to replace Suzuki ...
Part 7 - Carburetor 1 of 2 - • SUZUKI LT50 part 1 of ...
Part 7 - Carburetor 2 of 2 - • SUZUKI LT50 part 2 of ...
Part 8 - Rear brakes - • SUZUKI LT50 how to rep...
Part 9 - Steering Alignment - • SUZUKI LT50 How to set...
Part 10 - Throttle Cable - • SUZUKI LT50 How to rep...
Part 11 - Brake Cable - • SUZUKI LT50 How to rep...
Part 12 - Pull starter - • SUZUKI LT50 How to rep...
Part 13 - Tear down - • SUZUKI LT50 full strip...
Part 14 - Brake lock - • SUZUKI LT50 brake lock...
Part 15 - Front Weight - • SUZUKI LT50 How I fit ...
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Пікірлер: 71

@joshpatterson3012 Жыл бұрын

Your videos were a life saver when I tore my sobs 84 suzuki alt50 down. Thank you so much.

@Martysworkshop Жыл бұрын

Thank you for all your support 🙏

@cmirl87 3 жыл бұрын

Absolute legend, currently rebuilding this section of an LT50!

@Martysworkshop 3 жыл бұрын

Thank you for your feedback

@timsulzberger6658 2 жыл бұрын

Well done sir! I couldn't find any diagrams that show where that vacuum line goes. Your video solved the mystery. Thank you!

@Martysworkshop 2 жыл бұрын

Im glad my video could help. Thank you for your suport.

@danshorthouse 3 жыл бұрын

Great video mate! Thanks

@Martysworkshop 3 жыл бұрын

And thank you for watching

@zj4041 3 жыл бұрын

Good video. Thanks Marty. I ordered a new cylinder off amazon.. It didnt come with a vacuum port to hook up to petcock. A friend suggested drilling and tapping in a hole there. But not sure where to but an extra port to install it in. Please contact me at Zj4041@hotmail.com

@Martysworkshop 3 жыл бұрын

Thank you for the comment but my only advice would be to copy the original cylinder if you wanted to add the port, but it will work fine if you just leave the vacuum pipe off and use the quad with the tap in the pri position.

@nickwinters3657 3 жыл бұрын

@@Martysworkshop hi mate thanks for the video if you are not using the lt50 for abit is it best to leave the tap switch on or turn it on pre?

@Martysworkshop 3 жыл бұрын

Leave it in the on position, as it will switch off the fuel once the engine is off. Thank you for watching and your support

@kevindehaven4569 2 жыл бұрын

Outstanding and helpful series of videos. When the vacuum is created does it need to provide a certain amount of pressure. Or open is open and closed is closed? Just trying to diagnose some issues after Rebuilding my carb! Thanks a ton

@Martysworkshop 2 жыл бұрын

Thank you for watching and supporting the channel, yes a certain amount of vacuum is required but it is not a lot.

@martynstagg3194 3 жыл бұрын

Brilliant series of “how to videos”. I have a slipping clutch, any ideas of which clutch replacement to buy?? I can only see a genuine in at £132!!

@Martysworkshop 3 жыл бұрын

Thank you for all your support, i just had a little look myself and i believe the genuine clutch is the only option, around £110 - £140 seems to be the going price for them I'm afraid

@cmirl87 3 жыл бұрын

A video on the clutch assembly would be much appreciated, mine is trying to take of as soon as it starts.

@Martysworkshop 3 жыл бұрын

I will put in on my list thank you

@41778055 6 ай бұрын

When I leave mine overnight in the on position sometimes it empties all the fuel out of the tank out of the overflow! Any ideas please?

@Martysworkshop 6 ай бұрын

Take a look at part 4 ( all parts are listed in the description of this video) or in my playlists on my channel,

@GoldenLink87 10 ай бұрын

@Martysworkshop where does that breather black hose that is behind the oil injection go to?

@Martysworkshop 10 ай бұрын

I'm not sure what hose you mean sorry, what does it connect to?

@cobymartin4933 3 жыл бұрын

Have you got any recommendations on setting up the carb screws how many turns etc?

@Martysworkshop 3 жыл бұрын

Im not down the garage for a couple of days but i will let you know what mine is set at when i do, thank you for watching

@cobymartin4933 3 жыл бұрын

Thanks bud! Top videos on the LT

@Clintonwinn4 10 ай бұрын

Hi, loving the videos. When I was cleaning the carb whilst following your other video, whilst the fuel pipe was off the carb I noticed it has a slow leak, you don’t cover off what to do if the fuel tap leaks when in the ‘on’ position. Is it ok to have a small leak or how easy is it to fix? Thanks

@Martysworkshop 10 ай бұрын

I think the only choice is to replace it if it leaks but the genuine taps are quite expensive, but as long as the float is working the fuel should stop there,

@jamescleaver4021 7 ай бұрын

Hi Marty, I’ve been rebuilding an LT50 and your videos have been a great help, thank you! I’ve rebuilt the top end too and the aftermarket head hasn’t come with a vacuum pipe attachment. I didn’t realised until it’s fully rebuilt and I’m doing the finishing touches. Is this going to affect the bike starting/running? Any help is appreciated. James

@Martysworkshop 7 ай бұрын

Hello James and thank you for your support, so you only need the vacuum pipe to opporate the fuel tap in the on position, you can do away with the pipe but you will need to leave the tap in the pri position

@jamescleaver4021 7 ай бұрын

@@Martysworkshop Thanks Marty, that’s great. Is there a downside to running it like this?

@Martysworkshop 7 ай бұрын

The on position on the tap will be fuel off,

@lukehaymes4286 2 жыл бұрын

The new head that I brought didn’t have a vacuum port. I’ve had to blank my vacuum on the petcock and now I can only run the quad on the gravity fead “pre” is this common?

@Martysworkshop 2 жыл бұрын

That will work fine. Sorry for the late reply. I only just found your comment

@El_minipro 3 жыл бұрын

If I just don’t connect the diafragme black hose from the fuel valve to the piece between the carb and cylinder wouldn’t the on position become the off position? I’m thinking about doing this because hikes can be parked for months without being turned on and when there is fuel evaporating in the carburetor deposit, fuel Impurities will end up clogging the jet that allows fuel to go from the carb deposit to the cylinder. So if the quad had an off position in the fuel supply one could put it off, but leave the bike on and consume the fuel from the carb to leave it empty. I do this on all my Offroad bikes. But now Roth this one I have this doubt.

@Martysworkshop 3 жыл бұрын

Yes that makes a lot of sense just make sure you bank off the pipe coming off the intake as it would draw in air to your engine otherwise, thank you for your feedback

@Hudson12339 2 жыл бұрын

Hello, great video btw! I am working on an lt50 but it has no spark. I have gone over everything! I looked at the left-hand crank seal speak pug ignition coil literally everything i can think of do you have anything that I may be missing and could check? Thanks!

@Martysworkshop 2 жыл бұрын

Ok so just to start from the beginning, have you replaced the spark plug? Then plugged it into the cap and touched the tip of the plug on the engine while you pulled it over to check for spark? So next i would unplug the wires from the stop button and the pull cord stop then try again, if still no spark i would be checking the lead from the cap to coil, probably just replace that lead as a precaution as it is cheep.next i would remove the coil ans make sure it has a good contact with the frame as it needs to earth the frame so sand the paint off to make sure you have a good contact. If you still have no spark I'm afraid is ether the coil is stator, cheak all the wiring closely, but its not easy to test I'm afraid you can send them away to be tested and repaired but would probably cost more money than it is worth, so i would look at a 2nd had coil first and if that doesn't work then the stator, thank you for watching and i home this helps.

@Hudson12339 2 жыл бұрын

@@Martysworkshop Thanks!

@Hudson12339 2 жыл бұрын

@@Martysworkshop I am going to replace all the wiring in the bike i think it will cost around 150$. Also, i was wondering why my atv has 2 coils? I have 1 next to my Engine and 1 in My crankshaft. I am also going to sand the paint down it has a solid cm of black paint there. Thanks again

@calebhalvorson5442 2 жыл бұрын

I bought an lt50 not sure how to figure out the year of the bike. But my membrane is broken on the fuel petcock so as soon as I put fuel into the tank it pours down the vacuum line and fills the cylinder full of fuel. Do you know where to buy a replacement membrane or but a new fuel petcock ? I tried one of Amazon but it says lt80 not sure why the can’t send the lt50 like I ordered but the bike fires up and then dies right away like it’s getting to much fuel and it won’t start again till it sits for a while then fires back up for a second and it shuts off again

@Martysworkshop 2 жыл бұрын

Hello does it have an identifitication plate on the frame, that usualy says the year. Also I get most my parts off ebay but you can Only buy the petcock whole.

@ramsesjauregui8281 2 жыл бұрын

hello i need to install the new carb on a lt 50 but i don't know where to connect all the hoses. Can you help me please

@Martysworkshop 2 жыл бұрын

Sure there is only 1 hose that matters and that is the fuel pipe that goes on to the large port, all the rest are vent pipes, which just hang under the carb. Hope this helps

@El_minipro 3 жыл бұрын

Another question. Can you elaborate on how the mix of oil and gasoline is made? And is there an easy way to reach the oil tank? Thank you.

@Martysworkshop 3 жыл бұрын

Im not 100% as my lt50 has had the oil system removed so i plan to fit a new oil tank and get it back to original operation in a future video

@jamesgroom5782 Жыл бұрын

Stuck on mine changed piston and can’t even g wet the petrol pipes right and was leaking down the head way

@Martysworkshop Жыл бұрын

Hope this can help

@daniellaverick106 2 жыл бұрын

So where would you leave it when not being used?

@Martysworkshop 2 жыл бұрын

If you leave it in the on position as soon as you stop the engine off the vacuum will stop and switch the tap off. Thank you for watching.

@JesusLopez-gd7sr 2 жыл бұрын

Can you make one on how to wire it up ?

@Martysworkshop 2 жыл бұрын

Sure can, it will be after I have finished the engine I will do a video wiring it all up. Thank you for watching

@jesseruiz8740 2 жыл бұрын

Marty to the rescue again lol...so ibe cleaned my petcock multiple times works for awile then i think more crud from my tanks messes it up an flows on the "on" position...so for a simple fix do u think i could add a simple inline fuel shutoff before the carb?? Or will it create a vaccum issue??

@Martysworkshop 2 жыл бұрын

If it runs fine on the pri position i would just use it as the on it won't hurt to be honest,

@jesseruiz8740 2 жыл бұрын

@@Martysworkshop well it runs fine on it's just when I let the quad sit for a day or 2 there's a huge puddle underneath it from I believe the petcock just continuing to let fuel out

@Martysworkshop 2 жыл бұрын

I see, try taking the pipe off the carb and leaving it in a pot to confirm it is letting it through! But the carb shouldn't let it through, have you seen part 4 there is a common fault where the carb lets the fuel through.

@lyndonwebber1389 3 ай бұрын

I got an lt up garage cuts off when warm , I’ve checked most things .any ideas ?

@Martysworkshop 3 ай бұрын

Does it run better with the choke on?

@lyndonwebber1389 3 ай бұрын

@@Martysworkshop no , it’s a strange one , runs sweet as a nut then cuts off , soon as it cools dwn starts again ,changed coil carb , ultrasonic cleaned the old carb . Normally I can crack the code not on this one .

@Martysworkshop 3 ай бұрын

Have you changed the spark plug?

@lyndonwebber1389 3 ай бұрын

@@Martysworkshop yes I’ve put 3 different plugs in it , it’s doing my nut in lol

@mrg1551 3 жыл бұрын

How do I get the engine to stop without a on off switch

@Martysworkshop 3 жыл бұрын

If you remove the vacuum line to the tap and blank the pipe off then you would need the tap on pre to run and if you turned it to on it would stop. Hope this helps thank you for watching

@mrg1551 3 жыл бұрын

Cheers mate

@kevinnjuliann Жыл бұрын

MARTY PLEASE HELP! I own a LT50 1987 model (i guess) and it wasnt used for like almost 4years... i used it only a few times since i got it brand new (approximately like 5 times a month or so for 5 years). I recently had an idea of rebuilding it after i saw your videos and now it wont start! i dont seem to find any electric problem as the plug seems to work fine and isn't worn at all. but my petcocks diaphragm is damaged and i cant find any in my country- Sri Lanka. also when i put my petcock to PRI, fuel doesnt flow from the pipe thats supposed to be connected to the carb and instead it starts flowing from the other pipeline to the cylinder directly. is that the problem? also i opened the overflow screw of the carb and put the petcock to pri but it doesnt seem to flow at all. what should i do?

@Martysworkshop Жыл бұрын

OK so I would remove both pipes off the tap and then blank off the 1 pipe that goes the the engine, because if you leave it open it will draw in air witch is not good, then you need to give the carb a supply of fuel, so drill a hole smaller than the pipe in the bottom of a bottle then push the pipe in so it us tight, then fill bottle with fuel and try it this will eliminate the tap, let me know how you get on and we can go from there.

@kevinnjuliann Жыл бұрын

@@Martysworkshop it actually worked! thanks alot Marty, it started after along time... now i guess ill have to replace a fueltap and that would solve the problem?

@Martysworkshop Жыл бұрын

Brilliant I'm glad it worked, so yes you need a tap then I'm afraid.

@bladelad3797 3 жыл бұрын

My vacuum pipe is blocked with a screw as I looked today

@Martysworkshop 3 жыл бұрын

That might me because the tap does not have the vacuum port

@bladelad3797 3 жыл бұрын

@@Martysworkshop it's from the tap it just goes to no were I think it's a linmax to be fair but who ever had it made it look the part suzuki seat etc it was fine when I bought it it ticked over fine even creeping foward next day it wont tick over without revs I've been watching all your videos there brilliant also the tick over screw dosent have a spring showing so maybe a cheap carb the screw on the float bowl if you touch it theres fuel I'm thinking of buying a carb just unsure wich will fit if it's a copy

@Martysworkshop 3 жыл бұрын

Yea I'm not sure tbh if it looks simulator an lt50 carb should fit, now i know some cheep copy cylinder barrels don't have the port for the pipe so check that and if it doesn't then the pipe doesn't matter, abd thank you for watching and supporting my channel i really appreciate it.