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Is there any way to clear the slow running jet on my Majesty Scooter without dismantling the carb.

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THERE is 1 way and that is warm it up with air filter pipe off and then rev engine to about2000rpm and throttle back to idle and at the same time put your hand over the carby were the pipe goes.this will **** in a bit of fuel and the same time wash out the idle jet BUTit will be a bit of a bugger starting as you might have to clean the plug before starting again

Posted on Oct 02, 2009

Testimonial: "Thank you so very much It worked fine a nd my scooter is back to normal"

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Posted on Jan 02, 2017

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Idle circuit on carb is obstructed. Need to dismantle carb and use compressed air to clear every passage while its apart. Then reassemble carefully working on a clean surface.

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There are a lot of tiny fuel and air passageways in the carburetor that must be kept clean it order for your scooter to run right. Carefully, take the carburetor apart. This can be relative easy (on a 50cc scooter). The carb has tiny passages that can get gummed up. Your scooter will not run correctly if the carburetor isn't completely clean, so take your time. I use a gallon container of carb dip (you can get a gallon at your local auto supply store).
First, remove all of the rubber and gaskets or they will get damaged. After a 20 minute soaking in carb dip, I blow out the carb with compressed air. You have to get all the jets and the passageways clean. Be sure the jets are clear, especially the starter jet. Sometimes carb cleaner won't clear out these tiny jets. Use a guitar or a piano string, a strand of copper electrical wire, or a tiny drill bit pin vise. Be sure not to increase the size of the hole in the starter jet or you'll change the tuning. Carefully reassemble everything, checking for cracks in the rubber carb boots and the gaskets. Replace them if they are old and cracked. Be sure and remove all rubber and gasket material first or they could get ruined. Spray carb cleaner also works if you're diligent.
If you have an electric choke, check it to make sure it works. Check the resistance between the wires - you should see around 10 ohms or less. Measure the length of the choke assembly. Remove the choke from the carb and plug the wires into a 12V source for 15 minutes. The choke body should be warm. Measure the length again - it should increase by around 1/8".
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pull out the idle air screw blow out w/ carb cleaner & make sure slow jet is clear..try harleytalking.com they have helped me ';';';

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I have a 1999 katana 600. It will start and run with the choke on. However it will not run without the choke. I have cleaned the carbs and dipped everything in carb clean over night. The diphrams don't...


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