Aprilia Futura - filler cap modification
The Aprilia RST1000 Futura comes equipped with a shroud inside the fuel filler cap that some owners have removed.
Removing
it makes it easier to completely fill the bike up at fuel stops, as you
can actually see inside the tank. It's also quite easy to do if you're
careful.
Of course it was put there for a reason and it's up to you whether you do this mod.
For a step by step guide on how to do it click the following link: Aprilia Futura filler cap mod
This document was rescued from RST1000.org, the first Futura website.
Water collection in the filler cap
When filling up after a heavy downpour (or washing the bike), it's not unusual to open the cap only to see water swirl down into the tank.
This is because the top part of the tank is a cover that isn't water tight and has a drain to let water escape. Except it gets blocked really easily, probably due to engine heat acting on its aluminium fittings, and stops the water from draining away. The end result is you get water in your petrol.
It takes 15 minutes to fix. First unbolt the front of the tank and hinge it upwards, using the prop rode you'll find clipped to the underside of the seat.
The drain point is one of the two hoses at the rear of the tank. Remove them, make sure they're not blocked - pushing a small allen key into the opening will do it.
If the water drains out when you remove the hose then check the hose for blockages where it sticks out under the bike.
Page last updated: June 6, 2010
