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Which way does the needle slide& spring in the carby of RM50 1981 model go back together

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There is a groove in slide that mates up too the idle screw

Posted on Apr 06, 2015


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I have a toro z150 that won't start . I can poor gas into the carb and it will fire but stop.. Like its not getting any gas.. I have ran out ta stuff to look at..

Hi Kelly, Seems like the problem is needle stuck in seat, The needle and seat let the gas into the bottom of the carby and as the gas rises in the bottom of the carby the float rises as well pushing the needle up into the seat slowing the gas flow into the bottom of the carby.... As the motor's using the gas in the bottom of the carby the float's lowering and the needle lowers as well allowing more gas into the bottom of the carby, If a needle's stuck inside the seat NO gas(petrol)will be let into the bottom of the carby. Sign of a needle stuck inside the seat is unscrew the bottom of the carby from the top and if NO gas(petrol) in bottom then it's stuck, Pull needle out from seat with fingers and spray up seat with a carby cleaner and wipe needle as well, Replace needle and push needle up and down with float to check it freely slides again.... I hope you know what I mean... CHEERS..

May 05, 2016 | Toro Garden

1 Answer

Fuel going to carby but dos'nt seem to be going into carby. Will start for a moment as i pour fuel into chambers?

Hi Kristian, Seems like the needle could be stuck inside the seat.... You need to pull your carby off and unscrew the bottom half from the top, 1st sign of a needle stuck inside the seat is a dry carby There you'll find the float, push the float up and down and see if the needle above the float slides up and down from the seat, If the needle stays up then it's stuck and NOT letting the fuel into the carby, Just pull it down with your fingers to loosen it up. I hope this helps.... CHEERS..

Apr 28, 2016 | Hyosung GT 250 Motorcycles

1 Answer

How does the needle valve assembly all go together

talking carby
the needle is the bit with a rubber insert at the pointy end
the other end has a hollow drilled in it
into this end a spring will go then a small plunger with a weal spring attached to the end
put the assembled needle into the body and place the bent section of the spring on the needle over the tang of the float arm ( small bit bent down and back on the float arm
position the float arm and push the pivot pin through the bady and the float arm ends and to the other side of the body
the action of the float as the fuel vibrates is absorber by the weak spring holding the needle plunger to the float
If you cannot under stand this then get any book with a carby
section and you will see from the diagram how to put it together
90% of carbys will have the same set up so the manual doesn't have to be specific for your job.

Apr 25, 2015 | Cars & Trucks

1 Answer

How do I put the car orator back together ? There's a spring middle the cable and a little v shaped piece with hooks on the top?

You mean carburetor? Hold the cap with the cable through it in your left hand. Push the spring up in the cap and hold it with your thumb, making sure the cable is extended away from the cap, Take the slide in your right hand and fish the cable end through the wide part of the hole far enough to clear the stop. Move the cable to the small part of the slot. Install the "v" shaped piece ,or "keeper",to keep the cable and needle in place. You may have to spin the keeper in the slide a little to lock the cable in place. Let the spring extend. Screw the cap to the top of the carb making sure the needle goes into the jet smoothly.

Mar 03, 2015 | Motorcycles

1 Answer

How to fix honda lawn mowers

Take the carburetor apart again. Check that the needle assembly is still connected to the float and recheck that the jet is seated properly.
It sounds like the bowl is your model number for more details if you need them

May 14, 2012 | Garden

1 Answer

Getting drive spool back onto clutch.

I assume you are trying to re-install the clutch spring. It's going to be hard to do on the saw, but either way you choose to do it, I generally always hook the two ends of the spring together and then install it. Once you have it hooked together, get one part of the loop on. Hold this in place with a pair of vice grips or something similar. Then you should be able to stretch the remaining part of the loop in place. Be patient, it's not always the easiest thing to do. If all else fails remove the clutch and try it off the saw, it may be easier to do that way.

Apr 29, 2010 | Poulan P3416 16Inch 34cc 2Cycle Gas...

1 Answer

1972 honda cb 100, trying to get throttle cable diconnected from the carburator, i loosened and took the top off but the cable goes through and is connected down about an inch in there and i cant figure...

When you unscrew the top of carby with cable attached, the whole slide and needle will come out, take this out and sit on a chair next to your bike and simply compress spring by pushing cylinder slide closer to cap. The cable end can then be moved out of the slot that holds the end fast. Some carby's may have a small sliding clip to hold cable end. Cheers.

Apr 22, 2010 | Honda CB 100 Motorcycles

5 Answers

I'm helping a guy who rebuilt a 1983 sportster, the problem we are having is with timing. with the piston on tdc, the mark or line on the flywheel in timing hole and all the marks lined on the cams it...

first things first you should buy a book. your timing is off and here is why. you don't put the front piston in tdc to set the cams. there is a mark on the pinion that needs to be at about 11 o'clock and then the cam marks line up with that mark. pay no attention to the tdc mark.

Mar 29, 2010 | Harley Davidson XLH 1000 Sportster...

1 Answer

My bike stays reved up i checked the throttle but i cant find the problem

Did you pull the carby slide out when you checked the throttle?
If so you have put the slide in backwards.
Remove the top off the carby again & pull out the slide & needle.Turn it around & be sure to be carefull when you re- insert it you dont try to force it in. Also be sure that the needle(jet needle) goes in the hole(needle jet)properly & the slide seats all the way down.

This should fix your problem.
Regards Andrew porrelli

Dec 05, 2009 | 2003 Suzuki RM 125

2 Answers

1471 Pfaff sewing machine will not reengage needle

Possible solution...when you reassemble, the spring needs to lie flat in the channel under the center black slide. When you put the cover back on,the pin or post that sticks up on the black slide has to be in the curved cam slot on the inside of the cover. If it isn't the slide won't move in and out of the slot to engage the main drive.

Jan 25, 2008 | Janome 1600P-DB Mechanical Sewing Machine

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