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Make your own Breather Pipe

Cost: $3
Difficulty: 2 of 5
Tools Required: 1/4 drill, wrench
Is Mod reversible?: No

In theory, breather pipes allow the release of pressure in the head thus allowing your 50 to rev up faster.
Step 1:

Remove the upper valve cap from your header.

 

 
 
Step 2:
Turning the cap over on your workbench, notice the recessed circle at the bottom of the cap. This is what you will be drilling out later.
 
 
 
 
 

Step 3:

Go down to your local hardware store and look for approximately 4ft of 1/4" braided nylon tubing (be sure it's heat resistance). Bring your valve cap along with you and ensure that the tubing will fit into the recessed circle we spoke of earlier. While you're there, look for a small tube of high-heat silicon sealant. You'll need it later to seal the tube to the valve cap.

 

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