Results 1 to 9 of 9
  1. #1

    Help! Polaris Waverunner will not start more than once a day....

    Hi You All;

    I just discovered and joined this forum because I'm having problems
    with my '93 Polaris 650SL triple. I've tried an initial search but can't find
    a similar problem discussed here, and I'm kind of in a hurry, So I'll just
    post this qestion. I've posted this on three other forums but got no
    replies at all on those other sites, I'm hoping this one will be better....

    Usually every summer when I first pull it out of storage, it starts
    up 1st time with a few shots of starting fluid. I'll then run it
    for a minute to get the fuel primed into the cylinders. Once that
    first start goes successfully, it usually runs fine afterwards.

    Over the winter it's stored with the battery removed, a full tank
    of gas treated with fuel stabilizer, and engine store squirted into
    the carb throats until it dies, and then squirted down into the
    spark plug holes and then the plugs replaced.

    The battery is then freshly charged in the spring when I pull it
    out for re-installation in the waverunner again.

    This year, I can't get it to start and run more than once every few
    days. It will start with the starting fluid applied, and run for as
    long as I dare out of water. But when I shut it off, it will not
    start up again that whole day, starting fluid or no. If I leave it
    sit, it may start up again the following day, or the day after, but
    not again on the same day.

    I've pulled a plug wire and can see a dim but blue white spark that
    jumps across a 1/8 inch gap to the sparkplug top, or a bright but
    yellow spark that jumps a 1/8 inch gap from the lead to a cylinder
    head bolt, but the engine will not start anyway in spite of using
    starting fluid. Remember, once I DO get it started, it runs from
    the gas in the tank until I shut it off, but it won't restart again
    the rest of the day.

    Any help please?
    Thanks, Dave
    93 Polaris 650SL triple


  2. #2
    ryandi2's Avatar
    Join Date
    Aug 2009
    Location
    conesus ny!
    Posts
    2,092
    +1
    19
    welcome!

    how old is the battery?

    it needs to have above 10.6 volts to work right..

    take your plug boots offyour wires.. then cut the wires back 1/4 and reinstall the boots

    if thsi fails do a search how to ohm test your stator. and also want to check your coil(s)

  3. #3
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
    Join Date
    Oct 2006
    Location
    Cleveland OH
    Posts
    17,330
    +1
    31
    Welcome to the Hulk.

    Are the spark plugs wet or dry after you shut it off?

  4. #4
    Tony's Avatar
    Join Date
    May 2007
    Location
    North Carolina
    Posts
    1,760
    +1
    38
    Welcome to the Hulk.

    Don't use ether, pour a little premix down the carbs.

  5. #5
    Click avatar for tech links/info, donation request K447's Avatar
    Join Date
    Jul 2007
    Location
    near Toronto, Canada
    Posts
    36,595
    +1
    1,276
    Your spark should be much stronger.

    My initial guess is that the battery is weak, despite your recharging.

    Buy and install a high quality battery, such as a factory sealed AGM battery.

    Battery voltage while cranking should be over 10.6 volts.

    Make sure you have installed the correct NGK spark plugs.

    Click below for more info

  6. #6
    The plugs are glistening wet, but not soaking or bridged afterwards.

    Battery voltage is 12.6 volts static, when the relay clicks, it drops to 11.6 volts.
    I don't have a cranking voltage anymore because I destroyed the starter relay
    trying to service it. Relay was getting hit or miss. Gotta fix that first now....

    Tested the ground ohmage and found it 0.2 Ohms from Bat Neg terminal to
    anywhere on engine block.

    I've done both the starting fluid and dropping premix down the carbs thing,
    same results.... One start per day.

  7. #7

    Join Date
    Aug 2006
    Location
    Homer Glen Il.
    Posts
    8,704
    +1
    109
    is it losing spark ??? and the elect box looks dry ???
    and the fuji's will start on less then 10.6 volts there not as finicky as the domestic motors

  8. #8
    Click avatar for tech links/info, donation request K447's Avatar
    Join Date
    Jul 2007
    Location
    near Toronto, Canada
    Posts
    36,595
    +1
    1,276
    Quote Originally Posted by 785 lugs View Post
    ... the Fuji's will start on less then 10.6 volts, they're not as finicky as the domestic motors
    True, but cranking voltage below that threshold still indicates an old or weak battery, which will probably need replacement in the near future.

  9. #9
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
    Join Date
    Oct 2006
    Location
    Cleveland OH
    Posts
    17,330
    +1
    31
    Quote Originally Posted by polariscon View Post
    The plugs are glistening wet, but not soaking or bridged afterwards.

    Battery voltage is 12.6 volts static, when the relay clicks, it drops to 11.6 volts.
    I don't have a cranking voltage anymore because I destroyed the starter relay
    trying to service it. Relay was getting hit or miss. Gotta fix that first now....

    Tested the ground ohmage and found it 0.2 Ohms from Bat Neg terminal to
    anywhere on engine block.

    I've done both the starting fluid and dropping premix down the carbs thing,
    same results.... One start per day.
    Make sure the choke is fully opened.

    Wet plugs mean rich.

    Can you see fuel dripping out any of the carbs when idling?

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. 96 Polaris SL700 will not start
    By P_olaris in forum Polaris Open Discussion
    Replies: 3
    Last Post: 09-13-2009, 09:33 AM
  2. 1999 Polaris SLTH will not start when warm
    By igeoff in forum Polaris How To & FAQs
    Replies: 4
    Last Post: 09-08-2008, 10:42 AM
  3. Help, my 900ZXI will not start or do anything
    By jarcynvicnchris93 in forum Kawasaki Open Discussion
    Replies: 5
    Last Post: 04-22-2008, 07:35 PM
  4. 650 WaveRunner will not start without starting fluid
    By GuateMan in forum Yamaha Old School Skis
    Replies: 2
    Last Post: 01-03-2008, 12:39 PM
  5. my 94 polaris 750 will not start!
    By ducatifreak152 in forum Polaris How To & FAQs
    Replies: 13
    Last Post: 06-03-2007, 12:52 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
  •