Question about 1989 Aprilia AF1 125 Sintesi

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Help with my aprilia AF1 125?

Hi all ive just got a 92 AF1 125 and on checking it over have found that the trottle cable splits into 2 one goes to the carb but cant see where the other goes. Is it for the 2 stroke ?

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Congratulations. You have just purchased a very high performance 2 stroke 125cc from a very talented Italian manufacturer. A two stroke engine needs 2T oil to be mixed with the fuel before it is fed into the engine. This is a cumbersome job and one has to get the ratio just right. So in order to make the job easier you have two tanks. 1) The regular fuel tank & 2) A small capacity 2T oil tank (made of plastic mostly) which is hidden behind a side panel. In order to give a regular dose of 2T oil there is a tiny oil pump attached to the side of the engine. This oil pump has to be actuated simultaneously when the carb slide is actuated. Hence the banjo. So now you know why the throttle cable splits into 2. One goes to the carburator and other to the oil pump. Good luck and enjoy your bike sensibly.,,,

Posted on Nov 10, 2008

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hi, know it sounds silly but you are turning the choke off, or does it have an automatic choke. Can you hear the slide hitting the stop inside the carb when you let go of the throttle, try lifting the cable ontop of the carb and not the twistgrip if it goes down straight away, you could have a sticking cable, otherwise check for a split in the vachume pipe if fitted as an air leak may cause this, or a loose clip securing the carb, leaking gasket, or a gumed up slide, the standing could have caused the slide to stick if the fuel in the carb had started to go off and become sticky, remove slide and check , remember to replace it the same way as it only fits 1 way

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Bike-Doc
Please mark this as very helpful (if it has been!!)

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Hi, Jasonwalklin and the usual suspects are:
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2. Engine Run Switch in the "OFF" position.
3. Discharged battery, check 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.
4. Bank angle sensor tripped and ignition/light key switch not cycled to the "OFF" position and then back to the "ON" position.
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6. Starter control circuit, relay, or solenoid faulty.
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For more information about your issue, please visit the websites below. Good luck and have nice a day.
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if your not tensioning them properly and evenly they will do that

have you also replaced the springs?

you really need the manual to do this if you are not familliar with the procedure.

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