Page 1 of 2 1 2 LastLast
Results 1 to 10 of 11
  1. #1

    Poor Acceleration on 96 Polaris

    I have had my 1996 Polaris out of the water for a couple of months and just put it back in this weekend. Starts fine and idles fine, but when the throttle is fully depressed it cuts off. Restarts fine. I can gentley press the throttle and it will accelerate but it is real touchy. In Georgia we have ethanol in the gas and was wondering if that could be part of the problem. I did put 2 cycle oil in a tank of gas (100 to 1 mix) and it seemed to help a little, but hesitation is still there although not as bad. Anyone had a similar problem or suggestions.

    dan


  2. #2
    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
    What ski are you asking about?

  3. #3
    Bing-A-Ding-Ding-Ding, Brrrrrap! Brrrrrrrrrap!!! Polaris_Nut#1's Avatar
    Join Date
    Aug 2006
    Location
    Pittsfield, MA
    Posts
    3,350
    +1
    26
    are you using oil injection and pre-mixing or did you convert to pre-mix? You need at least 89 octane with that gas.

  4. #4
    Plrs X45's Avatar
    Join Date
    Sep 2006
    Location
    Joliet, Il
    Posts
    357
    +1
    5
    Quote Originally Posted by Polaris_Nut#1 View Post
    are you using oil injection and pre-mixing or did you convert to pre-mix? You need at least 89 octane with that gas.
    What? Why 89?

  5. #5
    ujustlost's Avatar
    Join Date
    Oct 2006
    Location
    Howell Michigan
    Posts
    1,597
    +1
    6
    Quote Originally Posted by Plrs X45 View Post
    What? Why 89?
    Adding oil to you gas reduced the octane level, so if your ski requires 89 octane and you put 89 octane in the tank as well as some oil, you now lowered the octane level of that fuel below what the manufacturer recommends, so if your running pre mix and need 89 you would want to put 91 or 93 octane gas in your ski. Hope this helps Mike

  6. #6
    Click avatar for tech links/info, donation request K447's Avatar
    Join Date
    Jul 2007
    Location
    near Toronto, Canada
    Posts
    36,589
    +1
    1,273
    Quote Originally Posted by dhart View Post
    I have had my 1996 Polaris out of the water for a couple of months and just put it back in this weekend.

    Starts fine and idles fine, but when the throttle is fully depressed it cuts off. Restarts fine.

    I can gently press the throttle and it will accelerate but it is real touchy.

    In Georgia we have ethanol in the gas and was wondering if that could be part of the problem.

    I did put 2 cycle oil in a tank of gas (100 to 1 mix) and it seemed to help a little, but hesitation is still there although not as bad...
    Have the carburetors been opened up and cleaned/rebuilt recently?

    Are the original gray fuel line still in there?

    Have look here;
    Polaris Domestic (red) engine

    The minimum recommended octane if there is ethanol blended is 89 octane. If you can buy premium grade fuel without ethanol, that is even better.

    One of the effects of ethanol in an older machine is to loosen up old gasoline gum and varnish from the tank and hoses, and the loosened stuff then clogs the carbs.

    If the carbs have not been cleaned recently, now is the time.

    Running with poor fuel delivery to the engine (clogged carbs, or other problems) can easily cause lean burn engine damage, which can be expensive to repair.

  7. #7
    Plrs X45's Avatar
    Join Date
    Sep 2006
    Location
    Joliet, Il
    Posts
    357
    +1
    5
    Quote Originally Posted by ujustlost View Post
    Adding oil to you gas reduced the octane level, so if your ski requires 89 octane and you put 89 octane in the tank as well as some oil, you now lowered the octane level of that fuel below what the manufacturer recommends, so if your running pre mix and need 89 you would want to put 91 or 93 octane gas in your ski. Hope this helps Mike
    Thanks.

  8. #8
    Tony's Avatar
    Join Date
    May 2007
    Location
    North Carolina
    Posts
    1,760
    +1
    38
    Quote Originally Posted by ujustlost View Post
    Adding oil to you gas reduced the octane level
    Can you go into a little detail?

  9. #9
    Bing-A-Ding-Ding-Ding, Brrrrrap! Brrrrrrrrrap!!! Polaris_Nut#1's Avatar
    Join Date
    Aug 2006
    Location
    Pittsfield, MA
    Posts
    3,350
    +1
    26
    Quote Originally Posted by Plrs X45 View Post
    What? Why 89?
    it's in the owners manual

  10. #10
    I have had numerous suggestions to drain the tank and put in 91 octane with no oil added to see if that helps. Also to inspect the fuel-water seperator for water. The carbs have never been rebuilt or cleaned so that will be the next step if the higher octane doesn't fix the problem. The carbs are Mikunis. The ski is a 1996 SLX780 and ran really great until this acceleration problem happened. Dan

Page 1 of 2 1 2 LastLast

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Replies: 1
    Last Post: 08-04-2012, 04:32 PM
  2. Blown fuse on Digital Display 96 Polaris SLT 780. Help!
    By pastordug in forum Polaris How To & FAQs
    Replies: 5
    Last Post: 08-14-2009, 06:25 PM
  3. Need wisdom on 96 Polaris slt700 with problems
    By Texwing in forum Polaris Open Discussion
    Replies: 1
    Last Post: 07-04-2009, 10:29 PM
  4. help on 96 polaris sl700
    By dale in forum Polaris Open Discussion
    Replies: 1
    Last Post: 07-20-2008, 08:49 PM
  5. Removing flywheel on 96 SLT Polaris
    By pcsilverstreak in forum Polaris How To & FAQs
    Replies: 6
    Last Post: 08-05-2007, 10:32 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
  •