Results 1 to 10 of 10
  1. #1

    1st Post with a question?

    I have a 1995 Polaris 780 with a blown motor (rod got the block) what motors or blocks would fit mine?


  2. #2
    thester71's Avatar
    Join Date
    Jun 2009
    Location
    central ma.
    Posts
    1,698
    Welcome to the hulk, what exactly is wrong with your motor? Is the top end still useable?There are several motor options available as you could use a 650, 750, or a 780, but It wouldn't make much sence to go smaller, so I would suggest figuring out exactly what is wrong with your 780 and rebuild it, or find another 780, your search should start right here in the polaris classifieds.
    If you do tear into it, take some pics and post them up, the guys on here will have you pointed in the right direction in no time at all.

  3. #3
    Click avatar for tech links/info, donation request K447's Avatar
    Join Date
    Jul 2007
    Location
    near Toronto, Canada
    Posts
    36,575
    +1
    1,272
    Quote Originally Posted by pothole View Post
    I have a 1995 Polaris 780 with a blown motor (rod got the block) what motors or blocks would fit mine?
    Welcome to the Hulk

    Your best bet is to find another 780 Fuji engine. The 750 and 650 engines will bolt in, but that requires other parts to also be changed (impeller, exhaust manifold, carb jets, possibly the CDI).

    Start with the Polaris Classifieds on here;

    xlint89 is having a sale, and there are lots of others with parts and parted out skis

  4. #4
    it got the water jacket and crank

    ---------- Post added at 11:37 AM ---------- Previous post was at 11:36 AM ----------

    on the cyl nearest the rear

  5. #5
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
    Join Date
    Oct 2006
    Location
    Cleveland OH
    Posts
    17,328
    +1
    29
    Welcome to the hulk pothole.

    Contact Friscoboater on here. He's got a 780 engine for sale in the classifieds.

  6. #6
    Click avatar for tech links/info, donation request K447's Avatar
    Join Date
    Jul 2007
    Location
    near Toronto, Canada
    Posts
    36,575
    +1
    1,272
    Quote Originally Posted by xlint89 View Post
    ... Contact Friscoboater on here.

    He's got a 780 engine for sale in the classifieds.
    Complete 96 SLX 780 Engine that has had the index checked, and just needs a top end. MAKE OFFER

  7. #7
    jackofalltrades's Avatar
    Join Date
    Aug 2010
    Location
    Cabot Arkansas
    Posts
    592
    Welcome to the Hulk.

  8. #8
    i have found a 650 block crank rods compleate lower end, thoughts on if it will fit?

  9. #9
    Click avatar for tech links/info, donation request K447's Avatar
    Join Date
    Jul 2007
    Location
    near Toronto, Canada
    Posts
    36,575
    +1
    1,272
    Quote Originally Posted by pothole View Post
    i have found a 650 block crank rods complete lower end, thoughts on if it will fit?
    What model year is the block?

    The 1992-1993 crank cases have water cooling, later cases do not.

  10. #10
    thester71's Avatar
    Join Date
    Jun 2009
    Location
    central ma.
    Posts
    1,698
    The upper case on a 780 has alot more porting than a 650.

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Post ride cleaning question: rinsing with dish detergent
    By mfslacker22 in forum Sea Doo Open Discussion
    Replies: 3
    Last Post: 03-26-2016, 12:38 PM
  2. 1st post starts with bad news
    By lhoy12 in forum Yamaha PWC Performance (2-stroke)
    Replies: 30
    Last Post: 08-23-2012, 11:53 PM
  3. 1st ride with new piston
    By andy95'slx780 in forum Polaris Open Discussion
    Replies: 6
    Last Post: 09-11-2006, 01:03 PM
  4. Speed results....new member 1st post
    By TorquePhoto in forum 4-Tec Performance
    Replies: 2
    Last Post: 07-22-2006, 09:20 PM
  5. New Member With Some Questions :)
    By ADAMBOMB in forum Sea Doo Open Discussion
    Replies: 33
    Last Post: 03-12-2006, 05:08 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
  •