Results 1 to 5 of 5
  1. #1

    1992 SL650 Triple running on two cyclinders

    I tried to get the front cyclinder to fire. Wet and cold. Other two work fine. I think it is a twisted crank. I have fuel and spark. I have a 1994 Sl750 too that I think the crank is twisted. I have a bunch of junk and it is going to be listed on Ebay soon unless someone can convince me to save them. I'm going crazy. Does anyone have an idea of the money I could make if I parted both out on Ebay?


  2. #2
    axgrider73's Avatar
    Join Date
    Feb 2007
    Location
    Southeast Ohio
    Posts
    2,059
    If I were you I would atleast try to confirn what the problem is before I parted them out.

    Have you done a compression check?

  3. #3
    The 1992. No compression test however I did place figure over cyclinder and had the same pressure as the other ones. The 1994 yes I did a compression test and all three were #130. I think both machines had water in the cyclinders and were repeatedly tried to be started. Kids.

  4. #4
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
    Join Date
    Oct 2006
    Location
    Cleveland OH
    Posts
    17,327
    +1
    29
    Get the MID cylinder piston at true TDC. Then take a measurement down to the piston of the other 2. They should measure exactly the same. Any more than 1mm or so, and I'd think the crank is out.

  5. #5
    Yes, I did it on my 1994 and I will have to do it on the 1992. Thanks for reminding me about that test. My 1994 seemed to be very close to being out of range and was going to pull motor to have checked with a dial wheel thing.

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Replies: 4
    Last Post: 06-20-2015, 06:40 PM
  2. SL 750 Running on Two Cylinders at Idle
    By safd18fire in forum Polaris Open Discussion
    Replies: 1
    Last Post: 08-15-2010, 05:43 PM
  3. 98xl1200 running on two cylinders?
    By toyterrific in forum Yamaha Old School Skis
    Replies: 4
    Last Post: 07-03-2010, 03:49 PM
  4. speed run on my triple piped 1200 gpr
    By thomase87 in forum Yamaha Old School Skis
    Replies: 33
    Last Post: 09-04-2009, 08:33 PM
  5. 1992 SL 650 runs on 2 1/2 Cylinders
    By Playtime in forum Polaris Open Discussion
    Replies: 5
    Last Post: 08-15-2007, 08:12 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
  •