Question about Aprilia RS 125 Motorcycles
Posted by Anonymous on
Hi Anonymous, for this situation I would call my local dealer or reputable shop's service/parts department and inquire about any possible quick fix/test or parts inquiry. If necessary transport your vehicle to the dealer or shop and have a professional technician take it for a test drive, if it is in running condition, and give you a written estimate of repairs and answer any specific questions you may have about your issue. For more information about your issue please visit the website below. Good luck and have a nice day. DOWNLOAD Aprilia Rs 125
Posted on Oct 21, 2015
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Posted on Jan 02, 2017
it may not be the coil. i got a bike that didnt run right, it came with box of spare parts and about 5 extra sets of coils. when i was talking to some buddies about what my bike was doing they told me that it was the coil. then i was talking to another buddy that used to work on motorcycles professionally he told me to check the points. I checked and adjusted them and now it runs just fine. so what i am trying to say is check your points before buying new coils.
Posted on Jun 22, 2009
SOURCE: bike starting problem
ALWAYS have a fire extinguisher on hand when working on carburetors.
Remove the water trap bowl at the bottom of the petcock, (gas valve). Is there any water or trash in the bowl? Drain a cup of gas from the tank. Is there any water or trash in the cup? Dump it, clean it and re-mount it, ( not all bikes have a water trap bowl ).
Drain the carburetor. There should be a screw on the lower side or bottom of the carb float bowl. Remove the screw then replace it after the fuel drains. Turn the gas back on and wait a minute for the carb to fill with gas. Install a new stock NGK spark plug and try to start the engine. If the bike doesn't start and run properly then shut off the gas and remove the carburetor from the engine.
Remove the float bowl and clean the entire carb with a spray carb cleaner from the auto parts store. Wear protective goggles to avoid getting spray in your eyes. Spray into all the little airways and fittings in the carb. Remove the idle screw and the air screw on the outside throat of the carb and spray into the screw holes as well.
< < READ CLOSELY > >
Be sure to put these two screws back in the same hole they came out of. IMPORTANT > do not tighten these two adjusters down. Only screw these in until they LIGHTLY seat. Now turn each adjuster one and one half turns outward. Put the rest of the carb back together, clean the air filter and install the carb. Let the float bowl fill then start the engine.
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Posted on Jun 29, 2009
HT coil, 99% certain, the one that's on the end of the plug lead. electrical stuff, particularly HT coils break down when warm. if it was a CDI unit it would likely go pop and that's the end of it. you can get the coil tested, or get a second hand cheap one or borrow one to see if that's it. I used to test them by putting them on a radiator to get really hot, faulty ones would give up real quick then.j
Posted on Aug 09, 2009
Had the same problem on my 1985 GL1200 aspy.
One of the pulse generators had an intermittent error. With time, it became worse. I replace the pulse generator set and problem gone. Pretty difficult to find, especially as I reasoned that 2 cylinders oughtta fire if one pulse generator worked. Wrong assumption. On the 1985, one dead pulse generator means no ignition. So check the spark when it's dead. Did take me a long time to figure out.
Posted on Jun 21, 2010
Check your fuel tank venting. If you open the fuel tank when it dies and can hear air entering the tank, and it starts, then you have a problem with fuel tank venting.
Posted on Jul 28, 2010
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