Question about 1998 Aprilia RS 250

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Splutter Problem I have a problem with my 1998 Aprilia RS250, when I open up, as the bike hits power band it starts to splutter. When I change too third it starts coming right, what can it be.

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Posted on Feb 09, 2009


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Hi, What Fuel/oil ratio are using?

I'd strongly suggest 40:1 with fully synthetic 2T oil and premium fuel.

How is the bike's compression? It should be165-215PSI. If it is less than this install new correct size piston and rings and use new gaskets.

If the bike is still splutter and blowing lots of smoke then raise the main jet needle by one notch.

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My 1990 aprilia af1 futura seems to splutter and there is a loss of power at high revs. this happens between about 8500 & 10,000 revs ,when the red line is @ 11,500 through 13,000 . the bike is a full...

Hi, Tanita and the usual suspects are:
1. Severely drained or faulty battery.
2. Faulty regulator/rectifier or high output coil.
3. Faulty power valve, solenoid or installation.
4. Clogged air filter or exhaust.
5. Cracked or incorrect float level.
6. Float needle is not seating.
7. Faulty reed valve.
For more information about your question please visit the website below. Good luck and have a nice day.
841 af1 rs manual zip 805 KB

Mar 25, 2011 | 1990 Aprilia AF1 125 Futura

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I have a bmw 316i e36 1998 when i start the car it and reve it it got like a splutter i have changed the spark plugs and the crank case vent valve + pipes it got better but still has a splutter that comes...

try cleanin the throttle body with nonchlorinated cleaner-inspect idle air also and egr--make sure plug wires r not old and inspec distributer area--secure a shop manual

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I have a 2008 aprilia sx 125, couple of problems iam having is trying to reset the service light, i have just given the bike a full service but dont know how to reset the service light. Another problem iam...

Hi, Mark_ts88 the answer to this question is way above my pay grade and for this situation, I would call my local dealer or reputable shop's service/parts department and inquire about any possible quick fix, answers, or parts inquiry.
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 ATLANTIC 125 Workshop Manual
Products at Aprilia Genuine Parts Aprilia Parts Aprilia Spare Parts...
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Bike boggs down no powerband rm 250

i have a 92 rm 250 an i just had it fully rebuilt an it laggs in power band an splutters an feels guttles

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1999 Aprilia RS250 won't come up to proper temp.

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Aug 25, 2009 | 1998 Aprilia RS 250

1 Answer

1998 Aprilia RS250 Still Spluttering

Hi and welcome to FixYa,

Your described problem could be the battery but I am also inclined to suspect the voltage regulator. If the 'splutter' is when revving/higher RPMs, then the CDIs are cutting off possibly because of higher than normal voltage from the regulator and/or the battery is not loading the system(charging). Try charging the battery externally for at least a couple of hours, try and observe. You can also have the battery tested. If the battery checks good, accepts a charge and the bike will run normally after being charged, then the regulator must be considered.

Good luck and thank you for using FixYa.

Feb 11, 2009 | 1998 Aprilia RS 250

1 Answer

Spluttering in mid revs.

Hi ....... The excuses you've been given might hold up either in Oz or tibet but as you say in Ireland it doesn't quite hold water.
Has anyone changed anything ? Pipe, airfilter, ignition ? The fact it takes off in the powerband show it's either not too bad or you've been luckey not to hole a piston. Try removing the spark plugs and note the colour, any colour other than a light tan is NOT correct and indicates fuel mixture as too lean/white (too much air) or rich/black (too much petrol). Too rich is preferable to too lean as being lean will hole a piston, burn out a valve or a partial/full seizure. Dependant on colour I'd then LOWER the circlip on the carb needle.
Let me know how you get on.

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check the 4 stroke oil if it starts to splutter at half throttle

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