Results 1 to 7 of 7
  1. #1
    Boilerman Bill BPnta's Avatar
    Join Date
    Jun 2008
    Location
    Yulee, FL
    Posts
    887
    +1
    1

    Flushing a Rotax

    I am sorry but I just don't get how or where to flush these motors. Researching I've learned they're closed loop but the exhaust has to be cooled while running out of water. I bought a Speedster 150 with no manual and can't find the service manual anywhere.

    Just a little background I've come from owning a Yamaha which comes with a flush adapter and everything is pretty straight forward.


  2. #2
    Moderator beerdart's Avatar
    Join Date
    Aug 2006
    Location
    CT
    Posts
    25,929
    +1
    1,407
    Its in the pump tunnel the cooling exit is threaded for the flush.

  3. #3
    83.0 @ 8400 jhill19's Avatar
    Join Date
    Jul 2010
    Location
    Teays Valley, West Virginia
    Posts
    2,800
    +1
    81
    Have u tried eBay for a manual? Usually there's a flush port on the pump area for a water hose it's for cooling the exhaust and intercooler while out of the water. There's a certain procedure for flushing tho, you have to start the engine then water hose run no more than a minute or so shut the water off and then the engine

  4. #4
    If i knew,...I wouldn't ask sea-one's Avatar
    Join Date
    Aug 2009
    Location
    Dallas/Waxahachie
    Posts
    2,340
    +1
    109
    Glad to SEA ya and yea there should be a place aroung the back of the jetpump area or on top on one of the sides as you raise the hatch. at least that what i had available. Oh and yea if its SC'd i recommend a "strainer" before for the IC to keep sediment out.

  5. #5
    Boilerman Bill BPnta's Avatar
    Join Date
    Jun 2008
    Location
    Yulee, FL
    Posts
    887
    +1
    1
    Found it, thanks for the replies.



    So just hook a garden hose up to the cooling exit. Anyone know the threaded fitting size so I can make one myself?

  6. #6
    Moderator beerdart's Avatar
    Join Date
    Aug 2006
    Location
    CT
    Posts
    25,929
    +1
    1,407
    Its STD garden hose thread.

  7. #7
    Boilerman Bill BPnta's Avatar
    Join Date
    Jun 2008
    Location
    Yulee, FL
    Posts
    887
    +1
    1
    nice beerdart thanks for the help man!

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Important flushing information
    By Green Hulk in forum Sea Doo How To & FAQs
    Replies: 32
    Last Post: 08-04-2011, 04:11 PM
  2. New product from Rotax Racing
    By Green Hulk in forum 4-Tec Performance
    Replies: 38
    Last Post: 01-01-2008, 10:50 PM
  3. Intercoolers - Rotax Racing v. Turbo Tech
    By Jarrett in forum 4-Tec Performance
    Replies: 35
    Last Post: 04-18-2007, 08:31 PM
  4. Flush Kit
    By Vern in forum Sea Doo Open Discussion
    Replies: 5
    Last Post: 05-11-2005, 01:36 AM
  5. Rotax Racing - How hard to install...
    By Jarrett in forum 4-Tec Performance
    Replies: 3
    Last Post: 05-08-2005, 08:32 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
  •