Question about Aprilia RS 125 Motorcycles

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My aprilia rs 125 starts and runs for about one minute then the engine dies down and stops

Posted by Anonymous on

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  • Aprilia Master
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Hi Anonymous, the following applies to carbureted also fuel injected models and the usual suspects are:
1. Severely discharged or damaged battery, 9 volts or lower.
2. Faulty alternator/generator and or voltage regulator.
3. Loose or corroded battery terminals and or cables especially the "NEGATIVE" cable, look for loose, corroded, or broken connectors inside the cable harness at "BOTH" ends.
4. Faulty main circuit breaker or ignition switch, check for loose connections and continuity.
5. Faulty system and or ignition relay, check for continuity.
6. Faulty ignition coil, ignition/electronic module.
7. Faulty CKP, CPS, CMP, MAP, TPS, or BAS sensor, corroded, loose or broken wire connector pins/sockets.
8. Water or dirt in the fuel system, carburetor or filter.
9. . Restricted, blocked or kinked fuel line.
10. Fuel tank empty.
11. Gas cap is not venting properly or fuel tank venting system blocked.
12. A faulty fuel pump, pressure regulator and or fuel injectors.
13. Vacuum line from intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.
14. Needle and seat stuck closed in the float bowl.
For more information about your issue, please visit the websites below. Good luck and have nice a day.DOWNLOAD Aprilia Rs 125

Posted on Oct 21, 2015

6 Suggested Answers

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: Clutch cable's change

If this is the same as the RS125 cable i changed then the cable goes into the clutch cover engine casing yes? You do not have to take the whole engine apart you need to disconnect the cable from the lever and then you will have to take the clutch cover off. before you do this you will need to lean the bike on its side as you will lose the gearbox oil otherwise. plus the cluch will fall out as it is held in with dowels and not bolted (stupid design) once you have the cover off then you can disconnect the cable. if your gentle when taking the cover off then u will not have to replace the gasket however this rarely happens you will deffianly need to get a new gasket about 4quid. reconnect your new cable and then put the gasket on and be carefull wen putting the casing back on the engine making sure you do not damage the new gasket.
hope this helps.

Posted on Feb 25, 2009

  • 5 Answers

SOURCE: how much oil do i put in transmission on aprilia

500 - 600 ml

Posted on Jul 18, 2009

  • 9 Answers

SOURCE: how much fork oil goes in my aprilia rs 125 1998

front fork oil capacity is 430cc

Posted on Aug 02, 2009

  • 9 Answers

SOURCE: de-restrict an aprilia rs 125

Hate to disagree with tina783, but you may have restrictions in place, there is two on the aprilia rs 125. if your on a L plate then the bike should be restricted to 11.5w of power, which is about 15 bhp, when it's de-restricted should be around 34bhp. First is the power valve or a RAVE Valve as some people call it, have you got one? located on the front of the cylinder body, above the exhaust. some times the body of the power valve is there, but there is a blanking plate is underneath it. If the body of the power valve is missing, then its a blanking plate. need to get a power valve and the control unit and the solenoid, fitting is easy look around the net and you'll find one. The next one is the emissions restriction, which is in place due to italy have a real hard on about thier air. The CDI at the back of the back of the bike needs to removed and then if you look at one side you will see a rubber sealant has been used to fill in one side. You need to dig that out and snap a little piece of the circuit board and then refill the hole with a rubber sealant. try to search the net for a how to do on this you need to look at the pics and see what part of the board needs snapping, don't go blindly into this other wise you will kill the CDI. the bike then will act alot more smoothly in the lower end revs.

Posted on Aug 02, 2009

ollie reece
  • 1167 Answers

SOURCE: cannot start aprilia rs 125, seems battery is dead but just drove

well thats the battery i guess its not turning the engine over fast enough for it to fire also try bumping it in 2-3 gear if it starts you know ya problem battery if it still doesnt go get back to me buddy

Posted on Sep 09, 2009

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2007 Aprilia RS 125 moeilijk om neutraal te vinden


Hallo, Aprilia en de gebruikelijke verdachten zijn:
1. Koppelingsregelaars onjuist aangepast.
2. Oliepeil te hoog in primaire kettingkast.
3. Primaire keten slecht afwijkend.
4. Koppelingsschijven verduisterd.
5. Onvoldoende koppelingsveerspanning.
Voor meer informatie over uw probleem en waardevolle "GRATIS" downloads die u nodig hebt, klikt u op de blauwe links hieronder. Veel geluk en een geweldige dag.
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APRILIA RS 125 Workshop Manual
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Jul 18, 2017 | 2007 Aprilia RS 125

1 Answer

Not starting off starter but goes with a push


Hi, Malcom Smith famous dirt bike rider extraordinaire and the usual suspects are:
1. Ignition Switch not in the "ON" position.
2. Engine Run Switch in the "OFF" position.
3. Discharged battery, needs to be 12.5 volts or better and be able to pass a "LOAD" test if necessary.
4. Check the battery terminals for damage or corrosion check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
5. Tip over sensor needs a reset.
6. Faulty ignition switch.
7. Faulty starter button.
8. Faulty kickstand or clutch pull in switch/sensor.
9. Starter control circuit, relay, or solenoid faulty.
10. Main fuse or circuit breaker may be blown or faulty.
11. Check for engine trouble codes.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
APRILIA RS 125
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https://www.manualslib.com/manual/363586/Aprilia-Rs-125-Tuono-2003.html
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Mar 18, 2017 | 2003 Aprilia RS 125

1 Answer

Hi, Fitted new clutch plates on my sons aprilia rs125 rotax 123 engine. Can you adise do i tighten the springs down untill they stop ? Is definitely 6 friction 6 plain plates, which order do they go...


Hi, Joemoturner I am sorry you can't find the first and best tool you ever bought for your Aprilia but despair not for a mere $10 you can download another one. For more information about your issue, please visit the websites below. Good luck and have a nice day.
https://www.tradebit.com/filesharing.php/search/0/1997+aprilia+rs+125+rotax

Jun 15, 2011 | 1997 Aprilia RS 125 Extrema

1 Answer

I need the recovery sequence for my Aprilia rs 125. the bike fell down while the engine was running.., now it does not want to start when the bike is in gear. why? i think it has to be the safety...


You are quite correct, the starter solenoid will not connect unless the bike is in neutral.
Paddle the gears until it is in neutral, make sure the neutral light is on and try again.
Hope this helps.

Dec 12, 2010 | 2000 Aprilia RS 125

1 Answer

My aprilia rs 125 engine dies or cuts out only in the wet what could be causing it


it sounds like it earthing out dew to getting wet...try spraying wd40 on the spark plug cap..see iof that helps...but all so check that there is not a split in the plug cap or coil lead!!...try having a look when its dark with the bike running to see if you can see it earthing out...then you will see what part needs replacing

Sep 04, 2010 | 2000 Aprilia RS 125

1 Answer

2004 RS 125: aprilia rs125 2004 plate, cuts out when warm... wi...


Hi, Anonymous either the plate has failed or you have wiring issues check the positive/negative connections for continuity and I am sorry you can't find the first and best tool you ever bought for your Aprilia but despair not for a mere $10 you can download another one. For more information about your issue, please visit the websites below. Good luck and have a nice day.
DOWNLOAD 2004 Aprilia Rs 125

May 18, 2010 | 2004 Aprilia RS 125

2 Answers

My aprilia rs 125 2000 power valve


you can run the standard plug. no need to change

May 12, 2010 | 2000 Aprilia RS 125

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