Is there fuel in the tank?
SOURCE: Fuel tap
by fuel tap i take it you mean to select between the reserve tank, and to switch the fuel off... on from 'new shape' models (2006 onwards) there is no switch: it has a vaccum system which sucks any unused fuel back into the tank..
when the fuel light comes on the 'reserve tank' is in use, so go fill up with some juice!
SOURCE: 2006 Aprilia RS125 doesnt start
Hi .... Try switching the petrol off just prior to stopping the engine and start up again with the petrol OFF. There's enough petrol in the carb to start the bike. A good battery should show over 12 volts. Take the plugs out and give them a good clean or replace them. Is there a petrul pump fitted ? A two stroke needs to be ridden quite hard to maintain efficeincy, higher revs etc ........ let us know how you get on ?
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
SOURCE: aprilia habana cutting out and starting problems
Did you clean the pilot & main jets in the carb & set the float height to standard? There is also an over flow in the carb which should stop fuel flooding into the air filter - did you check?
Make sure there are no splits in the fuel pipes & the smaller vacuum pipe that goes from the side of the auto fuel tap, also check pipes connect well
By your description it sounds like the carb is filling very slowly, 1 bowlful would get you around 2 miles & then plug would be dry when trying to start it, leaving it overnight the carb would fill up & flood air filter due to a leaky fuel tap
Ride safe
Bike-Doc
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