Welcome to BoatingForumz.com!
FAQFAQ   SearchSearch      ProfileProfile    Private MessagesPrivate Messages   Log in/Register/PasswordLog in/Register/Password

ZXI NOT RUNNING RIGHT

  
   Boating Forums (Home) -> Jet Ski RSS
Related Topics:
Quick question on running off a hose... - I have an SLT780 with a new sbt motor. I want to run this on the trailer for a bit before taking it to the lake. Where do I hook in the garden hose? thanks!

Kaw 650 head gasket size in mm??? - Trying to find out if Kaw 650 are 78 mm bore. thanks Pat

Advice needed on GP1200R and XL1200Ltd - I am looking to add some mods to my GP1200R and XL1200Ltd this year. Just curious to see what you guys Here is what I did to them already : 2000 GP1200R: Intake Grate, Ride Plate, Trim Tabs 1999 Intake Grate I know, not much, but..

I killed my battery - I killed a battery that was new last year by leaving in the ski all winter. I tried to go cheap by going to the auto parts store and buying new Charged it up. No luck. Bought a new battery today from Wal-Mart (16CLB). My

WTB POLARIS 12 VEIN PUMP - EMAIL WITH PRICE. JOE
Next:  Jet Ski: newbie - wet suits??  
Author Message
Fast Freddy

External


Since: Jun 22, 2003
Posts: 24



(Msg. 1) Posted: Mon Aug 18, 2003 12:57 am
Post subject: ZXI NOT RUNNING RIGHT
Archived from groups: rec>sport>jetski (more info?)
My friend and I both have ZXI's. His is a 1100, mine is a 900. Both are
experiencing almost the same symptoms. His boat runs great and smooth but
only revs to 6000 rpm. No cavitation or misfiring at all. Mine does the same
thing but only intermittently. The problem comes and goes at will, but when
rapping correctly runs like a striped ass ape.Today
I took off across the lake at full speed and it ran topped out for about a
minute and then the rpms started dropping down to 6K. After a few minutes it
started revving fine again.

Process of elimination: If it was carbs running lean or clogged fuel
filter, boat would have probably siezed by now, correct?
If it was reed valve problems they would be real hard to start,
correct??
If it was low compression, would run shitty at low rpms also, right?
If it was an air leak on bottom end it would idle real high and probably
sieze up, right?
We checked the heat sensors by switching from a boat that runs perfect,
so not that.
Why is 6K a magic number?
What happens if the cdi goes bad? What are the symptoms and is there a
way to diagnose the ignition system?
both boats have new plugs. Mine has been doing this for three summers
but getting way more frequent this summer. Used to be maybe only once a day,
now very often.

PLEASE HELP IF YOU HAVE ANY IDEAS!!!!!!!!!!!!!!!!!!!


Fred


--


www.Flamesbyfred.com

 >> Stay informed about: ZXI NOT RUNNING RIGHT 
Back to top
Login to vote
DCerto8692

External


Since: Jun 26, 2003
Posts: 8



(Msg. 2) Posted: Tue Aug 19, 2003 1:02 am
Post subject: Re: ZXI NOT RUNNING RIGHT [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
It could be the fuel pumps. I had a 1100 ZXI last season here at my shop that
did the same thing. I cleaned and rebuilt all 3 carbs with the original CDK III
rebuild kits from kawasaki. The fuel pump diaphrams were shot. After I put it
back together it ran fine.

Dan

 >> Stay informed about: ZXI NOT RUNNING RIGHT 
Back to top
Login to vote
Netlure

External


Since: Jun 01, 2004
Posts: 10



(Msg. 3) Posted: Wed Jun 02, 2004 9:45 pm
Post subject: Re: ZXI NOT RUNNING RIGHT [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
 > Process of elimination: If it was carbs running lean or clogged fuel
 > filter, boat would have probably siezed by now, correct?

Probably a little rich on the HS Jet. Could need a rebuild. Could just need
a new spring, or a tiny o-ring.

Only way to tell is it check with a pop-off guage.



 > Why is 6K a magic number?

My guess is this is where the boat completly passes through the transition
stage of the low speed jet to the high
speed jet.



 > both boats have new plugs. Mine has been doing this for three summers

Better to get the pop-off tester and check your pop-off pressure.

When that is ok.. then go and plug tune....

Again, it could just be a faulty o-ring in the carb. Something you will
never tune-out!



Rememeber... if you choose to tune your carbs...There is a process people
have followed for a while...

Set the ..... Idle, low speed, "transition", and then high speed.

Anyways... look at any one the SBTotheweb.com , TauCeti , PWCtoday.com , and
Jetski.com, They all seem to have nurmerous documents in the forums on how
tune your boat.






"Fast Freddy" <fastfreddy.DeleteThis@cox.com> wrote in message
news:PSS%a.10978$0u4.3518@news1.central.cox.net...
 > My friend and I both have ZXI's. His is a 1100, mine is a 900. Both are
 > experiencing almost the same symptoms. His boat runs great and smooth but
 > only revs to 6000 rpm. No cavitation or misfiring at all. Mine does the
same
 > thing but only intermittently. The problem comes and goes at will, but
when
 > rapping correctly runs like a striped ass ape.Today
 > I took off across the lake at full speed and it ran topped out for about a
 > minute and then the rpms started dropping down to 6K. After a few minutes
it
 > started revving fine again.
 >
 > Process of elimination: If it was carbs running lean or clogged fuel
 > filter, boat would have probably siezed by now, correct?
 > If it was reed valve problems they would be real hard to start,
 > correct??
 > If it was low compression, would run shitty at low rpms also, right?
 > If it was an air leak on bottom end it would idle real high and
probably
 > sieze up, right?
 > We checked the heat sensors by switching from a boat that runs
perfect,
 > so not that.
 > Why is 6K a magic number?
 > What happens if the cdi goes bad? What are the symptoms and is there a
 > way to diagnose the ignition system?
 > both boats have new plugs. Mine has been doing this for three summers
 > but getting way more frequent this summer. Used to be maybe only once a
day,
 > now very often.
 >
 > PLEASE HELP IF YOU HAVE ANY IDEAS!!!!!!!!!!!!!!!!!!!
 >
 >
 > Fred
 >
 >
 > --
 >
 >
<font color=purple> > <a style='text-decoration: underline;' href="http://www.Flamesbyfred.com</font" target="_blank">www.Flamesbyfred.com</font</a>>
 >
 ><!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: ZXI NOT RUNNING RIGHT 
Back to top
Login to vote
Scottspjs

External


Since: Jun 24, 2003
Posts: 168



(Msg. 4) Posted: Thu Jun 03, 2004 4:40 pm
Post subject: Re: ZXI NOT RUNNING RIGHT [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
I have raced these motors for years,the crank seals are not prone to leak,if
one does it will turn one of the plugs white as each chamber is sealed from
each other.it will be one or three.three really the only one that could get
fresh air.the igniters are pretty much bullet proof.the box it is in is crap.I
guarantee it has leaked and all your connectors are covered in crap.the only
ground for the system is in the box.clean it.[3 wire connector}brn
,blk,brn.have seen the fuel switch on the tank go bad[clogged up].I also
replace alot of the stock fuel pumps with mikuni high volume pumps.good
luck,scott
team scotts racing
 >> Stay informed about: ZXI NOT RUNNING RIGHT 
Back to top
Login to vote
Display posts from previous:   
   Boating Forums (Home) -> Jet Ski All times are: Pacific Time (US & Canada) (change)
Page 1 of 1

 
 You can post new topics in this forum
You can reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum



[ Contact us | Terms of Service/Privacy Policy ]