New build 1100 Kawi Motor Middle Piston meld afer short time - Page 2
pxctoday

» Log in

User Name:

Password:

Not a member yet?
Register Now!

» Find OEM Parts

» Jobs

» wallpapers

Page 2 of 7 FirstFirst 1234 ... LastLast
Results 11 to 20 of 61
  1. #11
    PWCToday Regular
    Join Date
    Dec 2010
    Location
    i dont know yet
    Posts
    115

    Re: New build 1100 Kawi Motor Middle Piston meld afer short time

    I installed a 3rd Pulse Line Fitting for that Fuel Pump.
    Those NGK BR9ES are the OEM ZXI 1100 Spark Plugs which i use.

    How can i identify the return restrictor ?

  2. #12
    PWCToday.com Is My Home Away From Home WFO Speedracer's Avatar
    Join Date
    Aug 2006
    Location
    Al-ugh-bam-ugh
    Posts
    28,210

    Re: New build 1100 Kawi Motor Middle Piston meld afer short time

    Quote Originally Posted by Felix #86 View Post
    I installed a 3rd Pulse Line Fitting for that Fuel Pump.
    Those NGK BR9ES are the OEM ZXI 1100 Spark Plugs which i use.

    How can i identify the return restrictor ?
    Its made into the carbs, check the clear fuel pump check valves on the carbs Yamaha carbs are known for crinckling , creasing those check valves, if they are damaged it will not pump fuel correctly or sometimes not at all.
    Y'all know me, still the same O.G. but I been low-key
    hated on by most these &^$$@s with no cheese, no deals and no G's, no wheels and no keys, no boats, no snowmobiles, and no skis, mad at me cause I can finally afford to provide my family with groceries

    WWSRD , What would Speed Racer do ?

  3. #13
    PWCToday Regular
    Join Date
    Dec 2010
    Location
    i dont know yet
    Posts
    115

    Re: New build 1100 Kawi Motor Middle Piston meld afer short time

    Well I rebuild all carbs before using them. They are now 45 minutes runtime like all other stuff.


    Sent from my iPhone using Tapatalk

  4. #14
    PWCToday.com Is My Home Away From Home WFO Speedracer's Avatar
    Join Date
    Aug 2006
    Location
    Al-ugh-bam-ugh
    Posts
    28,210

    Re: New build 1100 Kawi Motor Middle Piston meld afer short time

    Did you replace the fuel pump check valves, it's the center cylinder , being that it can't be a crankshaft seal issue, either that carb is not supplying fuel correctly or you have an air leak somewhere
    Y'all know me, still the same O.G. but I been low-key
    hated on by most these &^$$@s with no cheese, no deals and no G's, no wheels and no keys, no boats, no snowmobiles, and no skis, mad at me cause I can finally afford to provide my family with groceries

    WWSRD , What would Speed Racer do ?

  5. #15
    PWCToday Regular
    Join Date
    Dec 2010
    Location
    i dont know yet
    Posts
    115

    Re: New build 1100 Kawi Motor Middle Piston meld afer short time

    Yes I rebuild all of them with oem mikuni parts. Engine is fresh build. Ski ran fine for 45 minutes gas tank was empty and then I refilled Start and hear the noise. I think the damage is because of I ran out of gas. In the tank was 1/4 inch of fuel maybe less


    Sent from my iPhone using Tapatalk

  6. #16
    PWCToday.com Is My Home Away From Home WFO Speedracer's Avatar
    Join Date
    Aug 2006
    Location
    Al-ugh-bam-ugh
    Posts
    28,210

    Re: New build 1100 Kawi Motor Middle Piston meld afer short time

    It's possible I suppose but unlikely
    Y'all know me, still the same O.G. but I been low-key
    hated on by most these &^$$@s with no cheese, no deals and no G's, no wheels and no keys, no boats, no snowmobiles, and no skis, mad at me cause I can finally afford to provide my family with groceries

    WWSRD , What would Speed Racer do ?

  7. #17
    PWCToday Regular
    Join Date
    Dec 2010
    Location
    i dont know yet
    Posts
    115

    New build 1100 Kawi Motor Middle Piston meld afer short time

    Quote Originally Posted by Felix #86 View Post
    Yes I rebuild all of them with oem mikuni parts. Engine is fresh build. Ski ran fine for 45 minutes gas tank was empty and then I refilled Start and hear the noise. I think the damage is because of I ran out of gas. In the tank was 1/4 inch of fuel maybe less


    Sent from my iPhone using Tapatalk





    Sent from my iPhone using Tapatalk
    Last edited by Felix #86; 06-15-2022 at 03:08 PM.

  8. #18
    PWCToday.com Is My Home Away From Home WFO Speedracer's Avatar
    Join Date
    Aug 2006
    Location
    Al-ugh-bam-ugh
    Posts
    28,210

    Re: New build 1100 Kawi Motor Middle Piston meld afer short time

    Looks like you have way more issues than a center piston, looks too lean across the board , that front cylinder seized also , what piston to wall clearance are you running on this ?
    Y'all know me, still the same O.G. but I been low-key
    hated on by most these &^$$@s with no cheese, no deals and no G's, no wheels and no keys, no boats, no snowmobiles, and no skis, mad at me cause I can finally afford to provide my family with groceries

    WWSRD , What would Speed Racer do ?

  9. #19
    PWCToday.com Is My Home Away From Home WFO Speedracer's Avatar
    Join Date
    Aug 2006
    Location
    Al-ugh-bam-ugh
    Posts
    28,210

    Re: New build 1100 Kawi Motor Middle Piston meld afer short time

    Looks like that center piston died from Detonation, which means it is way too lean, I would start over with much larger main jets 130 minimum I might even go 135-140 because it's a lot easier to jet down till it runs right than try to jet up before smoking a set of pistons which you just did. Plugs are a lot cheaper than jugs.
    Y'all know me, still the same O.G. but I been low-key
    hated on by most these &^$$@s with no cheese, no deals and no G's, no wheels and no keys, no boats, no snowmobiles, and no skis, mad at me cause I can finally afford to provide my family with groceries

    WWSRD , What would Speed Racer do ?

  10. #20
    PWCToday.com Is My Home Away From Home wmazz's Avatar
    Join Date
    Jul 2013
    Location
    Riverside, CA
    Age
    62
    Posts
    3,340
    Blog Entries
    6

    Re: New build 1100 Kawi Motor Middle Piston meld afer short time

    Quote Originally Posted by Felix #86 View Post
    They are now 45 minutes runtime like all other stuff.
    During that 45 minutes, how many times did the suddenly shut off,
    and then you restarted the engine.


    Bill M.

    Detonation Destroys, Preignition melts.
    Last edited by wmazz; 06-15-2022 at 05:53 PM.
    Horsepower == Speed, RPM != Speed



Page 2 of 7 FirstFirst 1234 ... LastLast

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