Results 1 to 4 of 4
  1. #1

    Polaris SLH Timing Retards instead of advance

    I recently updated the elec system on my 1999 Polaris SLH and it starts right up but when you rev the engine the timing retards instead of advance. It actually moves away from TDC (opposite of the timing marks) I am stumped on this one. Please help!


  2. #2
    john zigler's Avatar
    Join Date
    Aug 2006
    Location
    WI
    Posts
    2,545
    +1
    33
    your timing will start out at a higher, initial number, then "pull back" to a lower number as you raise RPMs ( to help with detonation). this
    is what is called a timing "curve".

    what numbers are you getting? 25 deg initial / 15 deg final for instance?

    Polaris had two different flywheels. one is a low start timing, and the other is a high start.
    the difference between the two is 10 degrees.
    if you installed a later type CDI with a timing curve designed for a different flywheel than you
    have, you will need to move/adjust the hub of your flywheel. you can typically
    get the 10 degrees back, with your flywheel adjustment.

    hope this helps.

    EDIT; welcome to the hulk....

  3. #3
    Banned User
    Join Date
    Jun 2010
    Location
    Milwaukee WI
    Posts
    16,708
    +1
    1,324
    I believe max timing advance is @3000 RPM

  4. #4
    john zigler's Avatar
    Join Date
    Aug 2006
    Location
    WI
    Posts
    2,545
    +1
    33
    another thing to "think" about....


    It is possible, the CDI didn’t get reflashed correctly at Polaris. ( it happens)
    If the CDI was reflashed at Polaris, it will have some handwritten numbers on it in white or Yellow pen.

    Occasionally the DOS based reflash programs has a hiccup while programming.

    really need to know what numbers you are getting, with your light.

    Zig

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Polaris SLH how far on a tank of gas?
    By PolarisPWC in forum Polaris Open Discussion
    Replies: 2
    Last Post: 07-17-2013, 06:04 AM
  2. Instead of pulling head to check piston wash, try this...
    By RUNWME in forum Yamaha Open Discussion
    Replies: 10
    Last Post: 12-18-2007, 01:53 PM
  3. Instead of RE's what about Fiberglassing the OPAS Area
    By yellow4 in forum 4-Tec Performance
    Replies: 6
    Last Post: 07-24-2007, 08:48 PM
  4. Polaris 750 Engine Racing out of control
    By mkulczyckyj in forum Polaris How To & FAQs
    Replies: 24
    Last Post: 07-08-2007, 11:01 PM
  5. polaris down time talk
    By Bone1050 in forum Polaris PWC Performance
    Replies: 1
    Last Post: 01-05-2007, 11:32 AM

Posting Permissions

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