Off white plastic caps over pilot jets??

More
07 Jun 2014 19:51 #635728 by RickP
Off white plastic caps over pilot jets?? was created by RickP
I have an 82 KZ750 H3 with Keihin CV34 and these carbs have an off white plastic or polyester "cap" over the end of the pilot jets. What is purpose to have this cap there and how can the pilot circuit work when its capped??

Please Log in or Create an account to join the conversation.

More
07 Jun 2014 20:13 - 07 Jun 2014 20:17 #635732 by Patton
Replied by Patton on topic Off white plastic caps over pilot jets??


The plug or cap on the pilot jet is supposed to prevent fuel from being drawn into the pilot jet except through the tiny passageway shown in the diagram.

Good Fortune! :)
1973 Z1
KZ900 LTD
Attachments:
Last edit: 07 Jun 2014 20:17 by Patton.

Please Log in or Create an account to join the conversation.

More
07 Jun 2014 20:21 #635733 by azman857
Replied by azman857 on topic Off white plastic caps over pilot jets??
:S It was the EPA's way of keeping us from properly tuning our bikes. Back in the day it was supposedly a crime to remove them. Times have changed. ;)
I don't have a plan and I'm sticken' to it! '77 KZ 650 / 750 GPz custom project in progress

Please Log in or Create an account to join the conversation.

More
07 Jun 2014 20:35 #635734 by RickP
Replied by RickP on topic Off white plastic caps over pilot jets??
How do I safely remove/replace these w/o cracking or destroying them? I imagine theses are all but impossible to find replacements.

Please Log in or Create an account to join the conversation.

More
07 Jun 2014 20:52 #635737 by azman857
Replied by azman857 on topic Off white plastic caps over pilot jets??
Why save them? Outside a 100 point restoration why bother keeping them?
I don't have a plan and I'm sticken' to it! '77 KZ 650 / 750 GPz custom project in progress

Please Log in or Create an account to join the conversation.

More
07 Jun 2014 21:05 #635738 by Patton
Replied by Patton on topic Off white plastic caps over pilot jets??
The plug is held in position with an o'ring.





Could pull gently and carefully to see if the plug will come out.

Good Fortune! :)
1973 Z1
KZ900 LTD
Attachments:

Please Log in or Create an account to join the conversation.

More
07 Jun 2014 23:49 #635742 by martin_csr
Replied by martin_csr on topic Off white plastic caps over pilot jets??

It was the EPA's way of keeping us from properly tuning our bikes. Back in the day it was supposedly a crime to remove them. Times have changed.

I think you're thinking of the metal plugs that cover the pilot adjusting screws (air mixture screws) on the outside of the carb body. The polyester caps are for the pilot jets & I'm pretty sure they're necessary for the pilot circuit to work. Z1Enterprises.com doesn't seem to list those caps any more.
1981 KZ650 Competition Sports and Road

Please Log in or Create an account to join the conversation.

More
08 Jun 2014 05:08 #635755 by undiablo
Replied by undiablo on topic Off white plastic caps over pilot jets??
A good machinist can make them for you.
Kawasaki KZ 750/4 LTD 1981
Kawasaki KLR 650 2011
Argentina - Buenos Aires

Please Log in or Create an account to join the conversation.

More
08 Jun 2014 07:22 - 08 Jun 2014 07:23 #635765 by loudhvx
Replied by loudhvx on topic Off white plastic caps over pilot jets??

azman857 wrote: Why save them? Outside a 100 point restoration why bother keeping them?


Because it won't run right without them.

As Martin pointed out, he is not talking about the mixture screw covers. He's talking about a cap inside the carburetor, as shown in Patton's drawing.
1981 KZ550 D1 gpz.
Kz550 valve train warning.
Other links.
Last edit: 08 Jun 2014 07:23 by loudhvx.

Please Log in or Create an account to join the conversation.

Powered by Kunena Forum

Forum Links