Advice Required - ZX Forums
 
LinkBack Thread Tools
post #1 of 4 (permalink) Old 08-15-2019, 01:49 PM Thread Starter
Newbie
 
Joined: Aug 2019

Posts: 2
Advice Required

My 1998 GPZ1100 E2 starts fine, ticks over and runs to 4000rpm fine, but when I try to accelerate through 4000rpm it seems to suffer from fuel starvation. It will accelerate through if I open the choke fully.

We have cleaned the carbs the fuel tank and fuel tap.

Has anyone got any idea what else we could try.

Thanks

Paul
750tri is offline  
Sponsored Links
Advertisement
 
post #2 of 4 (permalink) Old 08-16-2019, 04:07 AM
Senior Member
 
Hammerhead's Avatar
 
Joined: Mar 2008
From: Southern Illinois
I Ride: '07 ZX-14

Posts: 12,962
If turning on the enrichener (choke) makes it run, it's definitely fuel starvation. Have you replaced the fuel filter? In-tank pumps can also clog from gas station debris. Check yours for output and whether it has a replaceable filter. Doesn't sound like the pump itself.

Not that familiar with the particular machine, but if it has a pressurized intake (ram air) the float pressure balance tubes that run from the carbs to the intakes in front can become clogged and cause running issues.

Also, the o-rings that seal the float bowls to the jet body are known to make problems when they go bad.

It may be a pig, but it's a pig with a rocket in it's ass!

Last edited by Hammerhead; 08-16-2019 at 04:11 AM.
Hammerhead is offline  
post #3 of 4 (permalink) Old 08-16-2019, 08:19 AM Thread Starter
Newbie
 
Joined: Aug 2019

Posts: 2
Thank you for the reply we will try these out. I will let you know if running properly again.

Regards
750tri is offline  
 
post #4 of 4 (permalink) Old 08-22-2019, 06:51 PM
Newbie
 
Joined: Aug 2019

Posts: 5
For clarification the 90s gpz11 is side draft like the zrx. But 6 speed. My '96 topped out ~170 lacking the ram air.

But as for the running lean problem. Check ur jet sizes. Check ur needle heights. U can check for vacuum leaks using (flammable) brake/carb cleaner or even better MAP gas w a hose. When the MAP lights u can pull it away so it doesnt burn things..

If u figure it out n want it 2 run better. Get a 4-2-1 for a zx11D and pods and jets w a spark advancer. 😁😁 n keep track of ur oil level.. if u dont already know that..
CrashTheSuzi is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the ZX Forums 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










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



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 Off
Pingbacks are Off
Refbacks are On

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