1998 ZXI 1100 Carb Adjustment - Page 2 - PWC Forum: The best hang-out for Personal WaterCraft enthusiasts
Reply
 
LinkBack Thread Tools Display Modes
post #11 of 34 (permalink) Old 08-04-2019, 11:14 AM Thread Starter
Junior Member
 
Join Date: Aug 2012
Posts: 20
I looked again at the 35, 45, and 50's. You are CORRECT the 50's are larger. Very small difference but larger. See pics with 50 on left. I guess I'll stay the same with the 50's and hope the tubes were the problem. Would that be your gut feel? Thanks for all the help! I'll report back in a couple weeks with the results as I have to go back home from my lake place to pay/work for all this fun I'm having!
Attached Thumbnails
Click image for larger version

Name:	IMG-8572.jpg
Views:	7
Size:	22.1 KB
ID:	17773   Click image for larger version

Name:	IMG-8570.jpg
Views:	7
Size:	87.4 KB
ID:	17775  
diverdown is offline  
Sponsored Links
Advertisement
 
post #12 of 34 (permalink) Old 08-04-2019, 10:40 PM Thread Starter
Junior Member
 
Join Date: Aug 2012
Posts: 20
Also, I'm not sure what you are talking about with the choke? The choke system has always been in tack and use it only to start the ski. Is there something else it can be used for?
diverdown is offline  
post #13 of 34 (permalink) Old 08-05-2019, 06:00 AM
Super Moderator
 
rodsatheart's Avatar
 
Join Date: Oct 2014
Location: Mena, Ar.
Posts: 5,022
Dock
Some people remove the choke to install a primer system. The cv's don't like that, plus it can help diagnose a lean or rich issue. If the 50's are eliminating the inherent lean stumble and not fouling the plugs, I'd keep them. Bad velocity stacks can do the same thing as removing the choke. It can change the pressure in the carb. Are you sure you got all the pieces out ? Might look down the intake and see if any is sitting on or in the reeds.
rodsatheart is offline  
Sponsored Links
Advertisement
 
post #14 of 34 (permalink) Old 08-05-2019, 06:30 AM
Super Moderator
 
rodsatheart's Avatar
 
Join Date: Oct 2014
Location: Mena, Ar.
Posts: 5,022
Dock
Here's the specs I have on the 1100 cv's.
Attached Thumbnails
Click image for larger version

Name:	cv carb specs.jpg
Views:	6
Size:	68.1 KB
ID:	17781  
rodsatheart is offline  
post #15 of 34 (permalink) Old 08-05-2019, 11:43 PM Thread Starter
Junior Member
 
Join Date: Aug 2012
Posts: 20
Thanks for the specs but I have the service manual. Years ago I put in the 50's and 160's in the mains to decrease the transition. It worked great for years. I hope the new stacks bring it back to life. I will check the reeds as you suggested. Most of the pieces were large so hoping nothing went to the reeds.

I also have a mint 99 Ultra 150 that is real fun and super fast. I'm looking for an oil leak towards the back of the engine. I have determined that it is NOT the cylinder oil hoses. Might be the back bearing oil hose. It is connected but I still have oil from below the back of the engine somewhere. I am going to replace all the hoses and hope it fixes the leak. Have you heard of oil leaking outside the back bearing oil input?
diverdown is offline  
post #16 of 34 (permalink) Old 08-06-2019, 06:52 AM
Super Moderator
 
rodsatheart's Avatar
 
Join Date: Oct 2014
Location: Mena, Ar.
Posts: 5,022
Dock
If it worked good for a extended period with that jetting, and not fouling plugs, I'd put it back. The common denominator seams to be the stacks.
The lines can leak if they have substantial years on them. They can lose their seal, come off, or break. There is a chance it could be leaking from between the case halves I guess. How bad is it leaking ?
rodsatheart is offline  
post #17 of 34 (permalink) Old 08-06-2019, 07:43 PM Thread Starter
Junior Member
 
Join Date: Aug 2012
Posts: 20
A substantial puddle in the bottom, but only after an extended period. I'm going to change all the lines and see if the problem still exists. Do you know the od and id of the lines? I assume gas type lines from an auto store would be sufficient? Are the bearing lines bigger than the carb lines? Or do my eyes deceive me? Would 20' be enough to do all 5?
TIA!
diverdown is offline  
post #18 of 34 (permalink) Old 08-07-2019, 06:47 AM
Super Moderator
 
rodsatheart's Avatar
 
Join Date: Oct 2014
Location: Mena, Ar.
Posts: 5,022
Dock
The carb lines should be 1/8"id. I can't remember on the bearing lines, but I believe they are slightly larger. I just use tygon or other small engine fuel line. Just snip a 1/2" off and take it with you. I'm thinking 8' is enough the do the carbs, but 10 gives room for error. Be sure and keep the lines in order for the carbs. They are specific on the 1200's. You can use high quality 4" zip ties to secure them
rodsatheart is offline  
post #19 of 34 (permalink) Old 08-07-2019, 10:23 AM Thread Starter
Junior Member
 
Join Date: Aug 2012
Posts: 20
Thanks for the ID size and tygon material. The ski is 90 miles away so I will just take a chance on the 1/8". I have the Ultra manual so I'll see if they are mention in there. I know about keeping the order off the oil pump. The lines are old and need to be changed. They are not brittle but aged. Thanks!
diverdown is offline  
post #20 of 34 (permalink) Old 08-09-2019, 06:59 AM
Super Moderator
 
rodsatheart's Avatar
 
Join Date: Oct 2014
Location: Mena, Ar.
Posts: 5,022
Dock
Looks like they're all 1/8". I just added up all the lengths from the parts page and it cam to 8.8ft, so maybe 15ft to allow for error. They're all 3mm id x 6mm od. Your going to have to premix some fuel to idle in the water on until the lines get purged. Normally I like to prefill oil lines with a 50cc syringe after I get them positioned, plug one end with finger, remove syringe, and attach it to pump. Still might get a air bubble or two, but it's better piece of mind for the few minutes of idling while purging. Couldn't hurt to bleed the pump for a min after attaching the lines to make sure no air got in there somehow also.
Again, don't get the lines mixed up. They don't all have the same flow rate.
rodsatheart is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the PWC Forum: The best hang-out for Personal WaterCraft enthusiasts forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome