Results 1 to 4 of 4
  1. #1

    Join Date
    Jun 2008

    What the deal with the PV?

    I keep hearing things about the Power Valve on the 1200's and 1300's. They were not on the 97, 98, 99 1200's, then back on in 2000. then back off in 2005. Whats the deal? Is it good or bad to have a PV motor?

  2. #2

    Join Date
    Nov 2009
    All things being equal it's my understanding that the 1200 PV motors are stronger than the non-PV predecessors. Horsepower figures will back that up. The main problem with the PowerValves is that they tend to drop the mounting pin which causes the valve itself to fall far enough down the cylinder to come into contact with the piston. That, obviously, gets real ugly, real fast. The solution, wave eater clips, can be installed in a matter of minutes. The clips prevent the mounting pin from dislodging giving you only the prospect of an oil line coming off (if you're not running pre-mix) as the other "only-a-matter-of time" problem.
    Welcome to the forum.

  3. #3

    Join Date
    Jun 2008
    Excellent. Thats exactly the answer I was looking for! Thank you very much. Typically, when does that happen with the pins falling out? I know you cant tell me for sure, but approx. hours?

  4. #4
    the later version of the power valve did not have this problem but by then the reputation was made. i think they were improved from 2001 on. you should check that. there was no magic amout of hours depends a bunch on how the ski was used. i have upgraded valves and i still went with the wave eaters. riva makes a cure for this as does sbt

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. '03 msx or no deal?
    By fastexas in forum MSX/Matrix
    Replies: 8
    Last Post: 11-14-2007, 02:45 PM
  2. Now here's a deal...
    By 05Limited in forum Sea Doo Open Discussion
    Replies: 4
    Last Post: 08-24-2007, 09:05 PM
  3. CL Deal
    By rfjr23 in forum Polaris Open Discussion
    Replies: 7
    Last Post: 07-15-2007, 06:55 PM
  4. deal or no deal 99 gp1200
    By addicted in forum Yamaha Old School Skis
    Replies: 54
    Last Post: 03-06-2007, 07:48 PM
  5. Need some new F/A's Best deal i've seen
    By OsideBill in forum Yamaha PWC Performance (2-stroke)
    Replies: 4
    Last Post: 10-07-2006, 11:21 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