Results 1 to 3 of 3
  1. #1

    Join Date
    Apr 2011

    water in exaust system

    can someone please tell me the main purpose of why there are water jackets surrounding the exaust system. Obviously its for cooling but is there any need for this to be hooked up? And what is this water bypass kit you can buy off riva saying it will bypass water into the exaust because it is being wasted ? thanks guys

  2. #2
    wakewhornc's Avatar
    Join Date
    Jul 2008
    Wilmington NC
    What ski? And mostly it keeps egts down helping preserve engine life best I can figure

  3. #3
    PolarisNut's Avatar
    Join Date
    Dec 2006
    Lower Michigan
    Yeah, it's for cooling...You have 1200 degree exhaust gases exiting the engine...if there were no water to cool it, it would melt the aluminum pipe, and then the hull...probably start a fire as well....and YES it absolutely HAS to be hooked up. There is also water that is injected into the exhaust stream, to cool the water box and tune the pipe further. You CAN bypass some of this water, which are what some of the various "water bypass mods" do. Try the search feature to find more info on it.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. WTB 1300 Exaust System/Waterbox
    By jbracing in forum Yamaha Classifieds
    Replies: 14
    Last Post: 06-17-2008, 11:08 PM
  2. O.P.A.S system water flow question
    By c6rvette in forum 4-Tec Performance
    Replies: 4
    Last Post: 05-28-2007, 12:01 AM
  3. Water System on RXP
    By steved in forum 4-Tec Performance
    Replies: 5
    Last Post: 01-02-2007, 10:40 AM
  4. Variable water injection system on GP1300R
    By chris1200 in forum Yamaha PWC Performance (2-stroke)
    Replies: 5
    Last Post: 10-17-2006, 06:34 PM
  5. Water Pressure in open loop system
    By Green Hulk in forum 4-Tec Performance
    Replies: 9
    Last Post: 03-19-2006, 08:34 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts