Page 1 of 3 1 2 3 LastLast
Results 1 to 10 of 23
  1. #1
    PLYMO's Avatar
    Join Date
    Jul 2009
    Location
    Melbourne, Victoria, Australia
    Posts
    7

    Supercharger Belt Keeps Breaking

    Can anyone help with this problem. Have just modified my 07 ULTRA 250x with the help from the guys from R&D in the states and Motec here in Oz. Have fitted the R&D 1.125 to 1 supercharger pulley , ride plate ,grate fuel reg , flat filter , block off plates , K&N intake Filter , home made 2.5in exhaust , Sponsons , intercooler upgrade as done on 250xtech site and timing mod 6 degs .
    Went for first run 2 days ago with the help from Motec and it was awesome to ride it was doing 8500 rpm @ 74.5mph gps ed boost was about 15 and fuel pressure at 47psi. Temp was 17 deg c
    Know to the problem i shedded a belt can anyone give a few tips on tension and anything else about the belt (it is alined properly) and anyones opinion on what i have done. over all i'm pretty happy with the way it has turned out
    Thanks


  2. #2
    2005 RXT Red08Ultra250's Avatar
    Join Date
    Feb 2008
    Location
    Dunedin, FL
    Posts
    908
    did you use the belt tension tool to check the proper tension? Sounds like it was over tight.

  3. #3
    nicjak's Avatar
    Join Date
    Mar 2008
    Location
    Warragul, Downunder
    Posts
    7,794
    +1
    625
    get the tool it takes all the guess work out. also keep a close eye on those pulley bearings they don't have a good record. the extra heat generated will shred the belt if its not tentioned right.

  4. #4
    Formerly Ultra250 TN Aquaholic6801's Avatar
    Join Date
    Feb 2007
    Location
    Old Hickory,Tn
    Posts
    5,446
    +1
    650
    74.5???? that also sounds like a low speed with the Mods you have done...........

  5. #5
    Take the time to smile sirbreaksalot's Avatar
    Join Date
    Jun 2007
    Location
    Brisvegas
    Posts
    4,163
    +1
    602
    Quote Originally Posted by Ultra250 Tn View Post
    74.5???? that also sounds like a low speed with the Mods you have done...........
    Depends which grate he got, and which plate he is talking about

    but for stock prop that doesnt sound too far from it

    Wot was you fuel, load

    I would be getting a alignment too, bet its out

    other weise use the Rogue pulleys

  6. #6
    I know this has been recently posted but maybe someone can help. When belt brakes, what do you do again to run naturally aspirated? Can you run w/o SC as long as you want and go as fast as stock LX (55)?

  7. #7
    nicjak's Avatar
    Join Date
    Mar 2008
    Location
    Warragul, Downunder
    Posts
    7,794
    +1
    625
    Quote Originally Posted by sirbreaksalot View Post
    Depends which grate he got, and which plate he is talking about

    but for stock prop that doesnt sound too far from it

    Wot was you fuel, load

    I would be getting a alignment too, bet its out

    other weise use the Rogue pulleys
    those rogue pulleys are a bit hard to come by arent they?
    where can i get a set at a good price?

  8. #8
    nicjak's Avatar
    Join Date
    Mar 2008
    Location
    Warragul, Downunder
    Posts
    7,794
    +1
    625
    Quote Originally Posted by Blue 182 View Post
    I know this has been recently posted but maybe someone can help. When belt brakes, what do you do again to run naturally aspirated? Can you run w/o SC as long as you want and go as fast as stock LX (55)?
    dont think so as fueling will be up the shit you can remove the i/c to throttle body hose to limp home.

  9. #9
    Take the time to smile sirbreaksalot's Avatar
    Join Date
    Jun 2007
    Location
    Brisvegas
    Posts
    4,163
    +1
    602
    Quote Originally Posted by nicjak View Post
    dont think so as fueling will be up the shit you can remove the i/c to throttle body hose to limp home.
    correct remove hose between I/C and T/B and it will run aspirated.

    yes the fuelling wont be perfect,But from my personal experience it was still fine to get home on at a good speed ( sorry didnt have the GPS wuth me )

    fuelling wont be to bad as the MAP sensor WONT see boost pressure !
    so the engine wont be that RICH

    engines mapped by OEM's usually have a full fuel map which will have many load points covered be it boost and aspirated to a good degree for safety and drivability.

    Waz

  10. #10
    PLYMO's Avatar
    Join Date
    Jul 2009
    Location
    Melbourne, Victoria, Australia
    Posts
    7
    I have R&D plate and Aquavein Grate also had just under 1/2 a tank of fuel.
    With the belt breaking i didn't Think i had a screw driver with me but now i think about it i have one in the tool kit under rear seat but anyway i just limped back to boat ramp at 2000 rpm it wouldn't go any harder.
    To get the fuel pressure right i had a lamda sensor in the exhaust set up with the Motec.
    I am getting belt tensioner tool tommorow hopefully this will help me set it up right

Page 1 of 3 1 2 3 LastLast

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. where can i get a supercharger belt in florida ? ASAP !!!!!
    By GDM in forum Kawasaki PWC Performance (4-stroke)
    Replies: 9
    Last Post: 02-18-2009, 06:36 PM
  2. 07 250x supercharger belt snapped
    By karlt in forum Kawasaki PWC Performance (4-stroke)
    Replies: 5
    Last Post: 01-30-2009, 08:25 AM
  3. Supercharger Belt Turn White Color..
    By ULTRA 250XXX in forum Kawasaki PWC Performance (4-stroke)
    Replies: 1
    Last Post: 06-24-2008, 03:03 PM
  4. Supercharger belt
    By EGGonz in forum Kawasaki PWC Performance (4-stroke)
    Replies: 7
    Last Post: 05-23-2008, 08:30 AM
  5. Supercharger Belt
    By xxxshowdownxxx in forum Kawasaki PWC Performance (4-stroke)
    Replies: 5
    Last Post: 10-01-2007, 10:38 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
  •