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2001 yumbo moped. No spark it is pedle started but just wont start i have no manule and cant find one any ideas.

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Try a new sparkplug. If the bike has a battery, it may need to be replaced. Is the air filter clean? Remove the bowl on the bottom of the carburetor and dump it out then clean the carb and bowl with a spray carb cleaner. Is the kill switch on the handlebar working properly? Is there a side stand kill switch? Is gas flowing from the gas tank to the carb? A 2001 bike is 9 years old. It is probably time for new crankshaft seals and a de-carbon of the cylinder head and exhaust port. The muffler could have an internal collaspe causing back-pressure that will not allow the engine to run. Remove the exhaust where it connects to the cylinder, check to see that the exhaust port is not plugged with carbon, ( the port should be about the size of quarter ), now try to start the bike without the exhaust hooked up. Check the fuses. Check all wire connections. This list should help as it is generic and would apply to most any two stroke bike.

Posted on Jul 17, 2010

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My aprilia sr gt 1 50cc moped wont start?


DO YOU HAVE GAS? DO YOU HAVE POWER?
TAKE OUT THE SPARK PLUG, RECONNECT IT TO THE CABLE AND LAY IT ON THE MOTOR, NOW TRY TO START THE MOTOR WATCHING IF YOU CAN SEE A SPARK. NO SPARK NO POWER. YOU MAY FIND OUT THAT POWER IS GETTING TO THE STARTER COIL BUT NOT TO THE PLUG. REPLACE THE COIL.

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My Yumbo Dakar 200cc bike dies after riding in 5th gear reving medium-highish for a couple of minutes, it usually just dies after i hit the clutch (coasting), but on long runs @ around 50-60mph in 5th gear...


G'day,
I have a couple of ideas what may help.
First I would think it was starving for fuel.Or maybe an unusual ignition system fault- So how do we find out?
Well-you could try checking the bike for spark immediately after the bike stops.
Remove the spark plug-Re-fit to the cap-place plug resting on metal where you can see it(DO NOT HOLD PLUG-HIGH VOLTAGE)-kick over & check for spark.If theres no spark-try a new plug but if the problem persists then the bike has a faulty ignition(coil,cap,plug,stator.ignition/kill switch,wireing)
I think it is more likely starving for fuel.
A faulty fuel tank filler cap vent or carby vent tube pinched or blocked.
To check the filler cap-ride the bike & when the problem just starts-quickly crack open the fuel tank filler cap to let air in/out. If bike runs ok then the cap is blocked.
To check the carby vents -just look at them & make sure none are blocked or pinched.They usually come from each side of the carby & one from the bottom(usually clear or semi-clear hoses).
I hope that this helps you with your problem.
Regards Andrew Porrelli

May 17, 2011 | 2004 Yumbo Dakar 200

2 Answers

Moped wont start


is there a spark a decent one if not try changing plugs if still no spark it could only be the cdi,coil and magneto get back to me buddy

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1 Answer

2003 Geely 50cc Moped wont start without starting fluid.


Both types would use fuel enrichment to make the fuel/air mixture richer for cold starts. Motorcycles deliver extra fuel to the intake through small holes in the intake bore when the choke is activated. When cleaning, use something soft like a plastic broom bristle (not metal wire) to avoid scratching the inside of the jet or passage.

Good luck,
Techjoel

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1 Answer

Yumbo wont start


• The first thing to do with ANY engine that has sat for any longer than a couple of months is to dump ALL the fuel in the tank and carb(s). ALL OF IT !! You'll want to refill with some high priced fuel that has fuel system cleaners (Like Chevron with Techron) not becasue you need high-test fuel, but because you need the cleaners. It's ether that or disassemble the carbs and clean out jets you can't find much less see. Your choice. The carb kits alone will cost you about $50 so a tank of high-test is looking pretty good, huh?

• Now the fact that you tried to crank the engine with old fuel has fouled the sparkplugs. Go buy a new sparkplug.

• If your bike has a vacuum fuel valve, then you'll also need to set the valve to "Prime".

Mar 21, 2009 | 2004 Yumbo Dakar 200

1 Answer

My moped wont go


It sounds lke you have water in the gas

remove /replace gas in tank

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1 Answer

I noticed sparks coming from the exhaust of my Ford 500. It has under 30,000 miles & i had an oil change a few days ago.


Welcom to fixit.com your 2004 Yumbo Dakar 200 Motorcycle has sparks comming from ehaust.... it could be metal from your engine,I know it sounds dumb but did you check the oil,make sure they put it back in, or it could just be you spark arrester starting to fall apart. Hope this helps !

Dec 17, 2008 | 2004 Yumbo Dakar 200

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