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Acerbis Locking Gas Cap Venting Fix

Important: All appropriate safety equipment and gear must be used during the installation of this or any other ProCycle product including any time you work on a vehicle. ProCycle accepts no responsibility for injuries or damage incurred during the installation of any products.

Be safe – no smoking or open flame. Don’t get gasoline on your skin. Wear eye protection. Use ventilation to avoid buildup of explosive fumes.

Sometimes an Acerbis Locking Gas Cap can have an issue venting air into the gas tank as the fuel level gets low. This is very easily and quickly remedied. Follow these simple steps and that should never happen to you again.

  1. VERY CAREFULLY remove the rubber seal that holds that green part in (this is the vent body). Use a dull bladed screwdriver to GENTLY lift up the gasket until you can grasp it with your fingers. Once you have a grip on it, GENTLY pull it up and out. The GENTLY is highlighted because if you damage this gasket it will no longer seal properly allowing fuel to possibly spill out onto the tank where it might drip onto a hot motor which might cause a bad situation!
The cap as it comes out of the package or straight off your tank.
  1. Once you have the seal safely out, then just unscrew the vent body from the cap. It unscrews from the same threads that screw the cap down onto the tank.
Here are the three parts you will have once it is disassembled. The gasket, the vent body and the cap itself.
  1. Find the small rubber piece inside the vent body. This is the part we will be making a pinhole in to ensure pressure can be released without fuel escaping. You will need to find a long pointed steel tool to poke a hole in that rubber gasket at the bottom of the vent body. We recommend a pick tool.
Looking down into the the vent body where the gasket is located.
  1. Poke a hole in the small rubber piece inside the vent body. Do not tear, cut or remove the seal. If there is more than a pin hole it can cause fuel to spill when the tank is full or when the bike is tipped over. It will appear that the hole seals up as soon as you remove the pick. It will still allow air to pass but keep fuel from passing through.
The pick tool stuck in the gasket at the bottom of the vent body.
  1. Now screw the vent body back into the cap and then GENTLY reinsert the rubber gasket, making sure that is all the way down. Screw the cap back onto your tank and you are good to go!