Quick question, Rebuild the Carb or fuel pump or both
pxctoday

» Log in

User Name:

Password:

Not a member yet?
Register Now!

» Find OEM Parts

» Jobs

» wallpapers

Results 1 to 3 of 3
  1. #1
    PWCToday Regular tehxshizzit's Avatar
    Join Date
    Sep 2012
    Location
    H816
    Posts
    71

    Quick question, Rebuild the Carb or fuel pump or both

    My buddy has this 88 650sx that will fire up after 5 minutes cranking it with the choke on and runs good after that (on trailer). We went out last weekend for a little TNT and it would hit a slump at low RPMs but would do good at WOT. I came in to trade after riding for 20 minutes and then it wouldn't start, so we got it back on the trailer and it eventually fired up. Is it a fuel pump issue or carb issue? It gets fuel just not that efficiently I'm guessing. cause the gas lines seem to fill up pretty well, just wont start right away. It's a CDK 28mm carb.

  2. #2
    PWCToday Regular tehxshizzit's Avatar
    Join Date
    Sep 2012
    Location
    H816
    Posts
    71

    Re: Quick question, Rebuild the Carb or fuel pump or both

    Bump

  3. #3
    PWCToday Guru
    Join Date
    Mar 2003
    Location
    Shiocton, Wisconsin
    Age
    41
    Posts
    487

    Re: Quick question, Rebuild the Carb or fuel pump or both

    I had the same problem with my 87 650SX. It ended up being bad crank seals. It had the same symptoms you listed. Very hard to start, hard to re-start, couldn't get the carburetor tuned correctly.
    It could be some other problem, but if it's an 88 and hasn't had new seals installed...it's well
    over due anyway.
    2001 Superjet; R&D, Blowsion, UMI, Riva, Wetwolf, Ocean Pro.

    1987 650sx: Mariner, UMI, Neo Designes, R&D, Jetsports, Renthal, Hydro-Turf, Skat-Trak, Reworked stock pipe, 40mm carb, Wetwolf F/S cone.

    1986 JS300; lots of mods, fast for a 300...I think

    1987 X2: Rips pretty good and has some 80's flare.

Thread Information

Users Browsing this Thread

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

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Powered by vBadvanced CMPS v4.2.0