Page 2 of 2 FirstFirst 12
Results 11 to 13 of 13
  1. #11

    Join Date
    Aug 2019
    Central Florida
    Quote Originally Posted by Trimup View Post
    I am interested in ideas on confirming correct timing. Only option I see is to fab a pointer and then find and mark TDC for all three cylinders on the PTO coupler. If I am overlooking something simpler and quicker please advise.
    That's exactly how you do it. You don't need to really fab a pointer though, just put a piece of tape on the engine next to the pto and draw a line on it that lines up with the mark on the pto for cylinder 1 TDC. Steve is right, you only have to mark 1 cylinder to verify timing unless you think the crank is twisted. A couple more marks for the other cylinders is easy enough to do though.

  2. #12

    Join Date
    Sep 2013
    So I marked TDC for all three. I initially used a fixed stop rotating to it from both directions and then double checked my marks were in the center of the dwell period with a dial indicator. All three marks are also precisely equidistant from each other, within the limits of my measuring capability on the coupler in the hull of course. All three cylinders are sparking a few degrees BTDC. Does anybody know what the base starting timing is supposed to be on an Ultra 150?

  3. #13
    steve45's Avatar
    Join Date
    Feb 2008
    From the service manual:

    15 BTDC @1 250 r/min
    22 BTDC @3 500 r/min (rpm)

    Guess you could use a timing light to check it while it's running.

Page 2 of 2 FirstFirst 12

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Ultra 150 will not start
    By kawasakibullet in forum Kawasaki PWC Performance (2-stroke)
    Replies: 1
    Last Post: 05-08-2016, 10:21 PM
  2. Ultra 150 will not start..
    By zrtman in forum Kawasaki How To & FAQs
    Replies: 15
    Last Post: 10-09-2013, 06:52 AM
  3. 04 ultra 150 no start
    By vettez062002 in forum Kawasaki PWC Performance (2-stroke)
    Replies: 13
    Last Post: 09-26-2010, 09:28 PM
  4. 99 Ultra 150 won't start
    By wareameye in forum Kawasaki Open Discussion
    Replies: 12
    Last Post: 09-24-2007, 06:48 AM
  5. ultra 150 no start
    By twinstack1 in forum Kawasaki Open Discussion
    Replies: 15
    Last Post: 06-22-2007, 11:03 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