Question about 2004 Aprilia Mojito Custom 150

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This is an Aprilia Mojito Custom, the 150cc version (I think this an '07, the last year). The carb was gunked up from the rotten fuel we are stuck with today and I cleaned it well and now there is virtually no fuel reaching the carb. I have checked the vacuum lines and put a vacuum pump on the line to what I think is the cut off valve and I do get fuel but the scooter is stopping intermittently, the fuel pump is the little nylon cylinder at the rear of the tank with a separate vacuum line. Can I check the pump with a vacuum pump. The scooter runs the float bowl out and then quits. Must be the fuel pump (?) and why is there a vacuum cut off when the fuel pump also will shut down from lack of suction? I rigged a temporary gravity tank and the scooter runs well. Thanks for any help. G. Morgan

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Hi,,realy does sound like your fuel pump has had it,,did you have an inline filter,from the pump to the carb? anyway you could discard the pump and stick with good old gravity?

Posted on Mar 23, 2011

  • yukoner Aug 05, 2011

    Good old gravity only works where the tank is above the carb. Such is not the case in a Mojito/Habana scoot.

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