Results 1 to 10 of 10
  1. #1

    Polaris SL 1050 No Spark

    I have a 1997 SL 1050 Polaris with a no spark issue. It has the updated ignition system ( new CDI and stator ). New ignition coil. New LR module. Old circuit board had ohms draw across terminals so put in a new(used) one that checked out perfect. Flywheel magnets seemed weak so put on a new(used) one also. Already made sure I had the proper voltage drops and a new battery fully charged so I had the proper voltages as to not replace unneeded parts because of low voltage (before I purchased update kit and other parts). At least 10.5 volts during cranking. All grounds checked and cleaned. Did sensor coil checks with 9 V battery. Everything was good. Removed external ground wire to electrical box with update kit as it is now grounded through new stator as per instructions. Tried it with and without wire, no difference. Originally had no spark on #2 cylinder. Now has no spark at all. Very confusing but is probably something simple that I am overlooking. Help please.

  2. #2
    Click avatar for tech links/info K447's Avatar
    Join Date
    Jul 2007
    Location
    near Toronto, Canada
    Posts
    41,184
    +1
    1,985
    Welcome.

    What voltage ‘minimum’ are you seeing while the engine is cranking? 10.5 would be quite marginal.
    Is this being measured right at the battery posts?

    If you press and hold the Bilge button, does the bilge pump run?
    Keep pressing Bilge button and crank engine. Do you have spark?

  3. #3
    Click avatar for tech links/info K447's Avatar
    Join Date
    Jul 2007
    Location
    near Toronto, Canada
    Posts
    41,184
    +1
    1,985
    Did you remove and clean the engine end of the heavy battery ground cable?

    Also clean the bolt and bolt hole threads and any other grounding wire ends at that bolt.

  4. #4
    Quote Originally Posted by K447 View Post
    Did you remove and clean the engine end of the heavy battery ground cable?

    Also clean the bolt and bolt hole threads and any other grounding wire ends at that bolt.
    Voltage check was at the battery terminals. It was minimum 10.5 - 11 volts while cranking. Did all other checks in manual and they were good. Cleaned heavy ground cable mount and bolt at engine block.
    Old ground wire that was going from battery to electrical box was burnt completely off from shorting from the battery to the box. All checks were done before parts were replaced and then again after new parts were installed. Ground wire going from box to old stator was not burnt. Just the wire going to the battery.

  5. #5
    Bilge works. Still no spark. While holding button and cranking.

  6. #6
    Click avatar for tech links/info K447's Avatar
    Join Date
    Jul 2007
    Location
    near Toronto, Canada
    Posts
    41,184
    +1
    1,985
    Quote Originally Posted by radar1972 View Post
    Bilge works. Still no spark. While holding button and cranking.
    10.5 to 11.0 volts while cranking is right around or below the minimum voltage the CDI needs. There may be some other problem(s) also affecting spark, but a marginal/weak battery can confound diagnostics.

    With a healthy strong battery you want to see 11.5 or higher voltages from the battery, while cranking. These red engine Polaris ignitions really want a strong battery.

    Next up, measure voltage right at the Black and Red/Purple wires that feed into the CDI. Monitor that voltage while cranking engine. Press Bilge button and see if the voltage feeding into the CDI rises (slightly) during cranking.

  7. #7
    Click avatar for tech links/info K447's Avatar
    Join Date
    Jul 2007
    Location
    near Toronto, Canada
    Posts
    41,184
    +1
    1,985
    Quote Originally Posted by radar1972 View Post
    ...
    Old ground wire that was going from battery to electrical box was burnt completely off from shorting from the battery to the box...
    Inspect carefully all the thin black wires inside the electrical box. Often when the external thin black wire is toasted one or more of the internal thin black wires can also be cooked.

    Also confirm (with battery positive disconnected) that there is indeed zero ohms from engine block to every thing inside the electrical box that is supposed to have ground connection. Including the metal tab on LR module, CDI Black wire, Black terminal group on the terminal board, etc.

    While you are in there, double check that each wire color is actually connected to the correct marked terminal on the board. Sometimes a wire gets pushed onto a terminal ‘next to’ the correct spot, or the color code marking is misread.

  8. #8
    casey67's Avatar
    Join Date
    Sep 2006
    Location
    Lemont,IL
    Posts
    3,130
    +1
    65
    The update Stator and CDI will have "eyelet" type connecters for the black ground wires. They should be grounded along with the coil ground. Make sure those wires are near zero ohms to engine cases/head.

    There also should be a ground wire from the eyelet ground to the other half of elect box, bolted to terminal board above the LR module. The LR metal bracket will ground to the back of terminal board when sandwiched/bolted to elect box.
    You should have zero ohms from the LR bracket to the cases/head.

  9. #9
    Quote Originally Posted by casey67 View Post
    The update Stator and CDI will have "eyelet" type connecters for the black ground wires. They should be grounded along with the coil ground. Make sure those wires are near zero ohms to engine cases/head.

    There also should be a ground wire from the eyelet ground to the other half of elect box, bolted to terminal board above the LR module. The LR metal bracket will ground to the back of terminal board when sandwiched/bolted to elect box.
    You should have zero ohms from the LR bracket to the cases/head.

    Thanks. Will check this all out and see what results I get.
    1 Quick question. If I disconnect all the wires that have to do with trim or the display, should I still have spark?

  10. #10
    casey67's Avatar
    Join Date
    Sep 2006
    Location
    Lemont,IL
    Posts
    3,130
    +1
    65
    Tes, should still have spark with those disconnected at the components.
    We have heard of a few displays causing ignition issues,not a bad idea to unplug it.


Thread Information

Users Browsing this Thread

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

Similar Threads

  1. no spark 98 polaris 1050
    By seanski in forum Polaris Open Discussion
    Replies: 1
    Last Post: 07-19-2015, 01:16 PM
  2. 97 polaris sl 1050 spark issues
    By VinnyM in forum Polaris Tech Tips and Info
    Replies: 0
    Last Post: 06-23-2015, 11:45 AM
  3. 96 Polaris 1050 no spark!!!!
    By kurtis27 in forum Polaris Open Discussion
    Replies: 12
    Last Post: 06-14-2013, 04:30 PM
  4. no spark on polaris slx 1050
    By kuntrytyme in forum Polaris How To & FAQs
    Replies: 5
    Last Post: 03-29-2012, 12:42 AM
  5. Polaris 1050 slxh No spark...............
    By bradders25 in forum Polaris How To & FAQs
    Replies: 8
    Last Post: 08-28-2010, 09:02 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
  •